Uefi bios sound errors. AMI BIOS - beeps (error codes)
Below are the beep values for some motherboards.
Award BIOS
— No signals — The power supply is faulty or not connected to the motherboard.
— Continuous signal — The power supply is faulty. Needs replacement.
— 1 short signal — No errors detected. Typical behavior of a working computer - the computer boots normally.
— 2 short beeps — Minor errors detected. A prompt appears on the monitor screen to enter the CMOS Setup Utility program to correct the situation. Check that the cables are securely fastened in the hard drive and motherboard connectors.
— 3 long beeps — Keyboard controller error. Restart your computer. The motherboard may need to be replaced.
— 1 long + 1 short beeps — RAM problems detected. Check that the memory modules are installed correctly. Or replace with other memory modules.
1 long + 2 short beeps - Problem with the video card - the most common malfunction. It is recommended to remove the board and reinsert it. Also check the connection to the monitor's video card.
1 long + 3 short beeps - Keyboard initialization error. Check the connection between the keyboard and the connector on the motherboard.
1 long + 9 short signals - Error when reading data from the permanent memory chip. Reboot the computer or reflash the contents of the chip (if this mode is supported).
1 long repeating beep - Incorrect installation of memory modules. Try pulling them out and putting them in again.
1 short repeating signal - Problems with the power supply. Try to remove any dust that has accumulated in it.
AMI BIOS
No signals - The power supply is faulty or not connected to the motherboard.
1 short beep - No errors detected. The computer is ready to use.
2 short beeps - RAM parity error. Restart your computer. Check the installation of memory modules. Memory modules may need to be replaced.
3 short beeps - Error during operation of the main memory (first 64 KB). Restart your computer. Check the installation of memory modules in the slots. Memory modules may need to be replaced.
4 short beeps - The system timer is faulty. The motherboard may need to be replaced.
5 short beeps - The central processor is faulty. The processor may need to be replaced.
6 short beeps - The keyboard controller is faulty. Check the quality of the connection between the latter and the connector on the motherboard. Try replacing the keyboard. If this does not help, then the motherboard may need to be replaced.
7 short beeps - The motherboard is faulty.
8 short beeps - Problems with the video card.
9 short beeps - Checksum error on the contents of the BIOS chip. A corresponding message may appear on the monitor screen. It requires either replacing the chip or rewriting its contents (if it is Flash memory).
10 short - Unable to write to CMOS memory. The CMOS chip or motherboard needs to be replaced.
11 short beeps - The external cache memory is faulty. Replacement of cache memory modules is required.
1 long + 2 short beeps - The video card is faulty. Check the connection between the monitor and the connector on the video card. The video card may need to be replaced.
1 long + 3 short beeps - The video card is faulty. Check the connection between the monitor and the connector on the video card. The video card may need to be replaced.
1 long + 8 short beeps - Problems with the video card, or the monitor is not connected. Check the installation of the video card in the expansion slot again.
Phoenix BIOS
Phonenix BIOS manufacturers have developed their own interleaving signal system.
1-1-3 — Error in writing/reading CMOS data. The CMOS memory chip or motherboard needs to be replaced. It is also possible that the battery powering the CMOS memory chip has run out.
1-1-4 — Checksum error on the contents of the BIOS chip. The BIOS chip needs to be replaced or flashed (if using Flash memory).
1-2-1 - The motherboard is faulty. Turn off your computer for a while. If that doesn't help, replace the motherboard.
1-2-2 — DMA controller initialization error. The motherboard may need to be replaced.
1-2-3 — Error when trying to read/write to one of the DMA channels. The motherboard may need to be replaced.
1-3-1 - Problem with RAM. Replace memory modules.
— 1-3-3 — Error when testing the first 64 KB of RAM. Replace memory modules.
— 1-3-4 — Error when testing the first 64 KB of RAM. Replace memory modules.
— 1-4-1 — The motherboard is faulty. It may need to be replaced.
— 1-4-2 — Problem with RAM. Check the installation of memory modules in the slots.
— 1-4-3 — System timer error. The motherboard may need to be replaced.
— 1-4-4 — Error accessing the I/O port. This error may be caused by a peripheral device that uses this port for its operation.
— 3-1-1 — Error initializing the second DMA channel. The motherboard may need to be replaced.
— 3-1-2 — Error initializing the first DMA channel. The motherboard may need to be replaced.
— 3-1-4 — The motherboard is faulty. Turn off your computer for a while. If this does not help, you will have to replace the motherboard.
— 3-2-4 — Keyboard controller error. The motherboard may need to be replaced.
— 3-3-4 — Error when testing video memory. The video card itself may be faulty. Check the installation of the video card in the expansion slot.
— 4-2-1 — System timer error. The motherboard may need to be replaced.
— 4-2-3 — Error when operating line A20. The keyboard controller is faulty. Try replacing the motherboard or keyboard controller.
— 4-2-4 — Error when working in protected mode. The CPU may be faulty.
— 4-3-1 — Error when testing RAM. Check the installation of modules in the slots. Memory modules may need to be replaced.
— 4-3-4 — Real time clock error. The motherboard may need to be replaced.
— 4-4-1 — Serial port testing error. May be caused by a device that uses the serial port for its operation.
— 4-4-2 — Parallel port testing error. May be caused by a device that uses a parallel port for its operation.
It often happens that even an experienced system administrator forgets BIOS codes and signals (especially since new motherboards are already equipped with UEFI), let alone a non-professional. And knowing the signals will help you quickly, and in everyday cases, often free of charge, solve the problem with a computer or laptop that won’t start.
This is what BIOS chips from AWARD AMI and Phoenix look like.
By the way, for reference: BIOS is Basic Input-Output system or in Russian speaking, a basic input-output system. In other words, this is a low-level program that is tightly built into the chip of your computer's motherboard. The BIOS loads when you turn on the computer and is responsible for initializing its hardware components, checking their functionality and startup correctly. Then, the bootloader program starts, launching the operating system Windows, Linux, or whatever you have installed there...
![](https://i2.wp.com/pingmeup.ru/wp-content/uploads/2018/04/american-megatrends-post-test-screen.jpg)
Here we need to make a small digression and tell you that the signals of this very BIOS may differ depending on the manufacturer. Let's look at the most popular options, there will be three of them - AMI BIOS, AWARD BIOS, Phoenix BIOS.
Below the cut is a table describing BIOS errors.
AMI BIOS beeps
In all versions of AMI BIOS, the successful completion of self-test is one short beep, after which the installed OS is loaded. I indicated other AMI BIOS sound signals in the table:
Sound signal |
Description |
2 short |
RAM parity error |
3 short |
Protected sector error 64 KB RAM |
4 short |
Motherboard system timer malfunction |
5 short |
CPU malfunction |
6 short |
Keyboard error |
7 short |
General motherboard failure |
8 short |
Video card memory failure |
9 short |
BIOS checksum error |
10 short |
Cannot write to CMOS |
11 short |
RAM error |
1 long and 1 short |
Power supply failure |
1 long and 2 short |
Video card error |
1 long and 3 short |
Video card error |
1 long and 4 short |
No video card, no video card found |
1 long and 8 short |
|
3 long |
|
5 short and 1 long |
No RAM |
constant signal |
AWARD BIOS beeps
With the correct post-test signal, everything is the same as in the previous version - one short AWARD BIOS beep means that everything is OK.
The remaining signals are slightly different - look at the table:
Sound signal |
Description |
1 short, repeating |
Power supply failure |
1repetitive, long |
|
3 long |
Keyboard error |
1 long and 1 short |
RAM failure |
1 long and 2 short |
Video card error |
1 long and 3 short |
Keyboard error |
1 long and 9 short |
ROM reading error |
1 long and 8 short |
Monitor not connected, problems with video card |
3 long |
Problems with RAM, memory test failed |
constant signal |
Problems with the power supply, PC overheating |
Phoenix BIOS beeps
The third version of signals from Phoenix. BIOS from this manufacturer is becoming increasingly rare, but still.
Here it must be said that with him everything is not the same as with the previous two. Yes, yes, the guys decided to show off and do something different from everyone else; their signals are not double, but triple. In practice, this only means that, for example, a signal about problems with power supply to the video card will look like three short beeps, a pause, three short beeps, a pause, then 4 short beeps. In the table I will write them as 3-3-4. So, let's go...
Error codes from Phoenix:
Sound |
Description |
1 – 1 – 2 |
CPU error |
1 – 1 – 3 |
CMOS write error, motherboard malfunction |
1 – 1 – 4 |
Error in BIOS ROM checksum |
1 – 2 – 1 |
Interrupt timer is faulty |
1 – 2 – 2 |
DMA controller error |
1–2 – 3 |
DMA controller read or write error |
1 – 3 – 2 |
RAM error |
1 – 3 – 3 |
|
1 – 3 – 4 |
RAM controller error |
1 – 4 – 1 |
Address RAM error |
1 – 4 – 2 |
RAM parity error |
3 – 2 – 4 |
Error |
3 – 3 – 1 |
Battery failure CMOS on the motherboard |
3 – 3 – 4 |
Video card malfunction |
3 – 4 – 1 |
Video card malfunction |
4 – 2 – 1 |
System timer malfunction |
4 – 2 – 2 |
CMOS error |
4 – 2 – 3 |
Keyboard problem |
4 – 2 – 4 |
CPU error |
4 – 3 – 1 |
Error in RAM test |
4 – 3 – 3 |
Timer error |
4 – 3 – 4 |
Error in RTC operation |
4 – 4 – 1 |
Serial port problem |
4 – 4 – 2 |
Parallel port failure |
4 – 4 – 3 |
Problems with the coprocessor |
I would just like to add that in case of self-repair of a PC or laptop always disconnect it from the power supply and only then you can calmly climb inside, armed with a screwdriver and other necessary tools.
In the next article I will talk about UEFI. What is it, why did she come to us and other interesting points.
P.S. In some cases with memory errors, it helps to remove the memory sticks from the slots, wipe the contacts of the RAM boards with a regular soft eraser, and the memory is back in service! If the memory is not burned out but simply malfunctions, then you can also try swapping the boards with RAM in places across banks, provided that the memory itself that you are swapping is the same.
P.P.S. At the end of this article I simply post tables of codes for three BIOSes in the form of pictures. They can be used as a cheat sheet and saved to your phone, tablet or computer.
Cheat sheets describing BIOS signals for printing
It seems that everything I wanted to write, I wrote. I tried clearly and without water, as always. If you have any questions, I answer in the comments.
In contact with
A fairly common situation is the problem when, when turning on the computer, the user hears one long and two short BIOS beeps from the system speaker. In this case, the operating system does not load at all, and the user sees a black screen in front of him (sometimes messages indicating a problem may appear, but, as a rule, they are absent). Read on to learn how to interpret this sequence of signals and what to do to correct the situation.
One long, two short BIOS beeps: what does this mean?
Let's start with theoretical information. When you turn on your desktop computer or laptop, all hardware is checked. The primary BIOS system (or its modernized UEFI version) is responsible for this. For each such system, the use of strictly defined signal sequences is provided, which can indicate either that the test was completed successfully, or that problems were found in the operation or initialization of the equipment. In general, to figure out what the problem is, you need to refer to the technical documentation of the primary system or at least read what different sequences and combinations mean.
In general, if the user hears one long and two short beeps from the BIOS of ASUS or any other developer of the primary system, we can immediately conclude that something is wrong with the installed hardware. Unfortunately, the system does not provide notifications about faulty components.
The only situation is a message about the absence of a connected keyboard. But this mostly applies exclusively to stationary terminals, since on laptops such a message can only appear if the built-in keyboard has become unusable. Connect any other external keyboard, for example, via USB and check how the system boots.
One long, two short BIOS beeps: what to do first?
The issuance of such a sequence of signals may not always be associated specifically with physical breakdowns of the installed equipment. It is quite possible that somewhere on the motherboard the contacts have simply come loose or become clogged. All components may be in perfect order, but dust or contamination of the inside of the computer can lead to the fact that some elements of the filling are simply not detected.
In the simplest case, if you receive one long and two short signals from the BIOS, you should immediately turn off the computer and completely disconnect it from the power supply. After this, you need to pause so that the residual currents disappear (ten minutes will be enough), then remove the side cover of the desktop PC case from the side accessing the motherboard and perform a basic dust removal. A regular vacuum cleaner with the minimum suction power set is suitable for this. When cleaning, you need to be very careful not to damage the components installed on the motherboard and the motherboard itself, otherwise the entire computer system will stop working. And replacing a motherboard is clearly not a cheap pleasure.
Problems with the graphics chip
Basically, most situations when the user hears one long and two short BIOS beeps are usually attributed to problems with the graphics adapter, since it is the adapter that is responsible for displaying the image on the screen, and if it malfunctions, problems arise with the inability to start the operating system.
In different BIOS versions (and from different developers), this sequence of signals may indicate different failures. For example, IBM BIOS issues such signals only if the computer is equipped with Mono/CGA video cards. But since such chips are practically not found today, such situations are very rare.
In the case of AST BIOS, such a sequence is issued only if problems are observed with frame scanning.
Compaq BIOS gives one long and two short beeps if initialization of the graphics adapter is not possible at all. The same situation is observed with the primary systems Award and Quadtel.
The problem can only be fixed physically. To do this, you need to remove the video card from the corresponding slot on the motherboard and first check its functionality on another computer. If it works as expected, the slot itself may need to be cleaned. You can also try inserting it into a different connector. If the card does not work, it will have to be replaced.
Possible problems with RAM
But problems are not always associated specifically with graphics adapters. For example, AMI BIOS generates one long and two short signals if problems with RAM are detected (for a video card, a sequence of pulses in combination 1-3 is used).
In this case, the memory sticks should be removed one at a time when the power is turned off, turning on the computer after each removal and checking the functionality of the system. When the damaged strip is found and the system boots in normal mode, you will simply have to replace it by installing similar equipment in its place. In this case, you should take into account which generation the RAM belongs to, and also pay attention to the characteristics of the motherboard itself in terms of ensuring that it supports the installed brackets both according to the standard and the maximum volume. Otherwise, you will not be able to use the maximum capacity, since the one determined by the motherboard may be much less.
What to do if the problem persists?
But let’s assume that it was not possible to get rid of the malfunctions using such simple methods. Let's take a situation where a Samsung laptop produces a similar combination. One long and two short BIOS signals are enough to determine problems with the hardware, but disassembling the device yourself is not always advisable.
In some cases, you can do much simpler, since the problem may be incorrect settings of the primary system. To get started, use reset parameters from the appropriate section, save the changes and check how the loading will proceed. If such actions do not give results, it may very well be that updating the BIOS will help. True, such actions must be performed competently, so as not to render the primary input/output system itself unusable.
A similar solution can be applied to stationary computer terminals. But this situation can mainly be associated with replacing hardware or installing new components, when an outdated version of the BIOS is unable to recognize modern devices. In this case, updating the firmware is the best option to fix the problem.
Instead of an afterword
It remains to add that the situation when a sequence in the form of one long and two short BIOS signals is output through the system speaker can, in principle, be corrected. Since the true reason for this behavior of the system is not clearly indicated, you will have to perform the described actions exactly in the order in which they were given in the above material. It is advisable not to use reset and update immediately, but leave them as a last resort if methods of physical intervention are powerless. However, first, clean the stationary unit from dust. This is the first remedy. With laptops the situation is more complicated, especially if the device is under warranty. If none of the above suggestions help, you will have to contact an authorized service center. And avoid contacting private sellers who do not have relevant experience in repairing computer equipment. Then many more problems may appear.
Many people know that when you start a computer, the BIOS is first loaded, which immediately scans and checks all devices for serviceability and ability to function normally. BIOS when loading Windows are a consequence of the fact that some kind of error has been detected in the system.
Of course, it is almost impossible to remember all of them, so you should always have the instructions in front of your eyes. Or, for example, print this article and use it in the future.
It is worth noting that BIOSes differ from different manufacturers, and, accordingly, too.
For reference, I would like to say, how you can determine the BIOS brand so that you know, just in case something happens, and can correctly identify the initialization error. The name is visible when loading the PC, or using some programs, for example, Everest (Aida).
Let's start with the oldies. I don’t think it’s worth describing all possible signal options, but it’s worth mentioning only the most basic and frequently occurring ones.
1 short:
Blank screen and 1 signal: The video system is faulty and therefore no information is displayed on the screen.
2 short: monitor is not connected.
Problems have been detected with the motherboard.
If
A short signal that either repeats periodically or is simply continuous: some failures or defects in the motherboard or power supply.
If there is no signal at all, then this means that you have a motherboard or a power supply.
SignalsAMI BIOS:
1 short: POST completed successfully. That is, no errors were found.
1 long and then 1 short: Some problems were discovered with the power supply.
1 long and then 4 short: video card not detected.
2 short: The printer or scanner is turned on.
3 long beeps: RAM problems. Try reinstalling it or replacing the rulers.
4 short: The system timer has failed.
5 short: Some problems have been detected with the processor.
7 short: at mat. problems have been detected on the board.
8 short: The video card memory generated an error.
1 long and then 2 short: the video card has some problems (Mono / CGA)
If 1 long and then 3 short: the video card has some problems (EGA / VGA)
1 long and then 8 short: There is no monitor or the video card is faulty.
Blank screen and no signal: the processor has failed, or there is poor contact at its legs.
The signal is continuous: The power supply is faulty or the computer is overheating
BIOS signals from Award:
1 short: POST completed successfully. No flaws found.
2 short sounds: Only minor interference was detected. It will be necessary to check the contacts and various fastenings of cables, hard drives, and the like.
3 long: an error caused by the controller for working with the keyboard.
1 short and then 1 long: error reading or writing information from RAM.
1 long and then 2 short: Video card errors detected.
1 long and then 3 short: error reading or writing information from video memory.
1 long and then 3 short: error reading or writing data from ROM.
A short signal that repeats periodically: Some defects were detected in the power supply.
A long signal that repeats periodically: Problems with RAM.
Repeating sound signal, sometimes at high and sometimes at low frequencies: Problems with the processor.
Continuous signal: Malfunctions in the power supply.
And lastly... If you have some other version of BIOS, or you want to know all the sound ones, then go to the manufacturer’s website and look at the instructions. If you do not find detailed instructions on such sites, then try looking for more detailed information on the links provided in the Everest program.
Error Message | Description |
|
System is booting properly |
||
BIOS ROM checksum error | The contents of the BIOS ROM to not match the expected contents. If possible, reload the BIOS from the PAQ |
|
Check the video adapter and ensure it"s seated properly. If possible, replace the video adapter |
||
7 beeps (1 long, 1s, 1l, 1 short, pause, 1 long, 1 short, 1 short) | The AGP video card is faulty. Reseat the card or replace it outright. This beep pertains to Compaq Deskpro systems |
|
1 long never ending beep | Memory error. Bad RAM. Replace and test | |
Reseat RAM then retest; replace RAM if failure continues |
Error Message | Description |
|
System is booting properly |
||
Initialization error | Error code is displayed |
|
System board error | ||
Video adapter error | ||
EGA/VGA adapter error | ||
3270 keyboard adapter error | ||
Power supply error | Replace the power supply |
|
Power supply error | Replace the power supply |
|
Replace the power supply |
Beeps/Error | Description |
Continuous beeping | System board failure |
One beep; Unreadable, blank or flashing LCD | LCD connector problem; LCD backlight inverter failure; video adapter faulty; LCD assembly faulty; System board failure; power supply failure |
One beep; Message "Unable to access boot source" | Boot device failure; system board failure |
One long, two short beeps | System board failure; Video adapter problem; LCD assembly failure |
One long, four short beeps | Low battery voltage |
One beep every second | Low battery voltage |
Two short beeps with error codes | POST error message |
System board failure |
IBM Intellistation BIOS:
Beep error code: | Action / Run diagnostics on the following components: |
1-1-3 CMOS read/write error | 1.Run Setup 2.System Board |
1-1-4 ROM BIOS check error | 1.System Board |
1-2-X DMA error | 1.System Board |
1-3-X | 1.Memory Module 2.System Board |
1-4-4 | 1. Keyboard 2.System Board |
1-4-X Error detected in first 64 KB of RAM. | 1.Memory Module 2.System Board |
2-1-1, 2-1-2 | 1.Run Setup 2.System Board |
2-1-X First 64 KB of RAM failed. | 1.Memory Module 2.System Board |
2-2-2 | 2.System Board |
2-2-X First 64 KB of RAM failed. | 1.Memory Module 2.System Board |
2-3-X | 1.Memory Module 2.System Board |
2-4-X | 1.Run Setup 2. Memory Module 3.System Board |
3-1-X DMA register failed. | 1.System Board |
3-2-4 Keyboard controller failed. | 1.System Board 2. Keyboard |
3-3-4 Screen initialization failed. | 1. Video Adapter (if installed) 2.System Board 3.Display |
3-4-1 Screen retrace detected an error. | 1. Video Adapter (if installed) 2.System Board 3.Display |
3-4-2 POST is searching for video ROM. | 1. Video Adapter (if installed) 2.System Board |
4 | 1. Video Adapter (if installed) 2.System Board |
All other beep code sequences. | 1.System Board |
One long and one short beep during POST. Base 640 KB memory error or shadow RAM error. | 1.Memory Module 2.System Board |
One long beep and two or three short beeps during POST.(Video error) | 1. Video Adapter (if installed) 2.System Board |
Three short beeps during POST. | 1. See "System board memory" on page 62. 2.System Board |
Continuous beep. | 1.System Board |
Repeating short beeps. | 1. Keyboard stuck key? 2.Keyboard Cable 3.System Board |
Error Message | Description |
|
System is booting normally |
||
Video adapter error | The video adapter is either faulty or not seated properly. Check the adapter |
|
Keyboard controller error | The keyboard controller IC is faulty. Replace the IC if possible |
|
The keyboard controller IC is faulty or the keyboard is faulty. Replace the keyboard, if problem still persists, replace the keyboard controller IC |
||
The programmable interrupt controller is faulty. Replace the IC if possible |
||
The programmable interrupt controller is faulty. replace the IC if possible |
||
DMA page register error | The DMA controller IC is faulty. Replace the IC if possible |
|
RAM refresh error | ||
RAM parity error | ||
DMA controller 0 error | The DMA controller IC for channel 0 has failed |
|
The CMOS RAM has failed |
||
DMA controller 1 error | The DMA controller IC for channel 1 has failed |
|
CMOS RAM battery error | The CMOS RAM battery has failed. If possible, replace the CMOS or battery |
|
CMOS RAM checksum error | The CMOS RAM has failed. If possible, replace the CMOS |
|
BIOS ROM checksum error | The BIOS ROM has failed. If possible replace the BIOS or upgrade it |
Error Message | Description |
|
System is booting normally |
||
Video adapter failure | Either the video adapter is faulty, not seated properly or is missing |
|
1 long, 1 short, 1 long | Keyboard controller error | Either the keyboard controller IC is faulty or the system board circuitry is faulty |
1 long, 2 short, 1 long | Either the keyboard controller is faulty or the system board circuitry is faulty |
|
1 long, 3 short, 1 long | ||
1 long 4 short, 1 long | The programmable interrupt controller IC is faulty |
|
1 long, 5 short, 1 long | DMA page register error | The DMA controller IC 1 or 2 is faulty or the system board circuitry is faulty |
1 long, 6 short, 1 long | RAM refresh error | |
1 long, 7 short, 1 long | ||
1 long, 8 short, 1 long | RAM parity error |
|
1 long, 9 short, 1 long | DMA controller 1 error | The DMA controller for channel 0 is faulty or the system board circuitry is faulty |
1 long, 10 short, 1 long | Either the CMOS RAM is faulty. Replace the CMOS |
|
1 long, 11 short, 1 long | DMA controller 2 error | The DMA controller for channel 1 is faulty or the system board circuitry is faulty |
1 long, 12 short, 1 long | CMOS RAM battery error | The CMOS RAM battery is faulty or the CMOS RAM is bad. Replace the battery if possible |
1 long, 13 short, 1 long | CMOS checksum error | The CMOS RAM is faulty |
1 long 14 short, 1 long | BIOS ROM checksum failure | The BIOS ROM checksum is faulty. Replace the BIOS or upgrade |
Phoenix ISA/MCA/EISA BIOS:
The beep codes are represented in the number of beeps. E.g. 1-1-2 would mean 1 beep, a pause, 1 beep, a pause, and 2 beeps.
- With a Dell computer, a 1-2 beep code can also indicate that a bootable add-in card is installed but no boot device is attached. For example, in you insert a Promise Ultra-66 card but do not connect a hard drive to it, you will get the beep code. I verified this with a SIIG (crap -- avoid like the plague) Ultra-66 card, and then confirmed the results with Dell.
Error Message | Description |
|
CPU test failure | The CPU is faulty. Replace the CPU |
|
System board select failure | The motherboard is having an undetermined fault. Replace the motherboard |
|
CMOS read/write error | The real time clock/CMOS is faulty. Replace the CMOS if possible |
|
Extended CMOS RAM failure | The extended portion of the CMOS RAM has failed. Replace the CMOS if possible |
|
BIOS ROM checksum error | The BIOS ROM has failed. Replace the BIOS or upgrade if possible |
|
The programmable interrupt timer has failed. Replace if possible |
||
DMA read/write failure | The DMA controller has failed. Replace the IC if possible |
|
RAM refresh failure | The RAM refresh controller has failed |
|
64KB RAM failure | The test of the first 64KB RAM has failed to start |
|
First 64KB RAM failure | The first RAM IC has failed. Replace the IC if possible |
|
First 64KB logic failure | The first RAM control logic has failed |
|
Address line failure | The address line to the first 64KB RAM has failed |
|
Parity RAM failure | The first RAM IC has failed. Replace if possible |
|
EISA fail-safe timer test | Replace the motherboard |
|
EISA NMI port 462 test | Replace the motherboard |
|
64KB RAM failure | Bit 0; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 1; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 2; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 3; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 4; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 5; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 6; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 7; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 8; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 9; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 10; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 11; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 12; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 13; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 14; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
64KB RAM failure | Bit 15; This data bit on the first RAM IC has failed. Replace the IC if possible |
|
Slave DMA register failure | The DMA controller has failed. Replace the controller if possible |
|
Master DMA register failure | The DMA controller had failed. Replace the controller if possible |
|
Master interrupt mask register failure | ||
Slave interrupt mask register failure | The interrupt controller IC has failed |
|
Interrupt vector error | The BIOS was unable to load the interrupt vectors into memory. Replace the motherboard |
|
Keyboard controller failure | ||
CMOS RAM power bad | Replace the CMOS battery or CMOS RAM if possible |
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CMOS configuration error | The CMOS configuration has failed. Restore the configuration or replace the battery if possible |
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Video memory failure | There is a problem with the video memory. Replace the video adapter if possible |
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Video initialization failure | There is a problem with the video adapter. Reseat the adapter or replace the adapter if possible |
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The system's timer IC has failed. Replace the IC if possible |
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Shutdown failure | The CMOS has failed. Replace the CMOS IC if possible |
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Gate A20 failure | The keyboard controller has failed. Replace the IC if possible |
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Unexpected interrupt in protected mode | This is a CPU problem. Replace the CPU and retest |
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RAM test failure | System RAM addressing circuitry is faulty. Replace the motherboard |
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Interval timer channel 2 failure | The system timer IC has failed. Replace the IC if possible |
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Time of day clock failure | The real time clock/CMOS has failed. Replace the CMOS if possible |
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Serial port failure | A error has occurred in the serial port circuitry |
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Parallel port failure | A error has occurred in the parallel port circuitry |
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Math coprocessor failure | The math coprocessor has failed. If possible, replace the MPU |
Description |
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Verify real mode |
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Initialize system hardware |
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Initialize chipset registers with initial values |
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Set in POST flag |
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Initialize CPU registers |
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Initialize cache to initial values |
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Initialize power management |
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Load alternative registers with initial POST values |
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Jump to UserPatch0 |
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Initialize timer initialization |
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8254 timer initialization |
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8237 DMA controller initialization |
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Reset Programmable Interrupt Controller |
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Test DRAM refresh |
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Test 8742 Keyboard Controller |
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Set ES segment register to 4GB |
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Clear 512K base memory |
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Test 512K base address lines |
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Test 51K base memory |
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Test CPU bus-clock frequency |
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CMOS RAM read/write failure (this commonly indicates a problem on the ISA bus such as a card not seated) |
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Reinitialize the chipset |
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Shadow system BIOS ROM |
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Reinitialize the cache |
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Autosize the cache |
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Configure advanced chipset registers |
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Load alternate registers with CMOS values |
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Set initial CPU speed |
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Initialize interrupt vectors |
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Initialize BIOS interrupts |
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Check ROM copyright notice |
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Initialize manager for PCI Options ROMs |
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Check video configuration against CMOS |
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Initialize PCI bus and devices |
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initialize all video adapters in system |
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Shadow video BIOS ROM |
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Display copyright notice |
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Display CPU type and speed |
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Set key click if enabled |
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Test for unexpected interrupts |
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Display prompt "Press F2 to enter setup" |
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Test RAM between 512K and 640K |
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Test expanded memory |
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Test extended memory address lines |
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Jump to UserPatch1 |
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Configure advanced cache registers |
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Enable external and CPU caches |
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Initialize SMI handler |
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Display external cache size |
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Display shadow message |
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Display non-disposable segments |
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Display error messages |
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Check for configuration errors |
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Test real-time clock |
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Check for keyboard errors |
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Setup hardware interrupt vectors |
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Test coprocessor if present |
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Disable onboard I/O ports |
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Detect and install external RS232 ports |
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Detect and install external parallel ports |
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Reinitialize onboard I/O ports |
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Initialize BIOS Data Area |
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Initialize Extended BIOS Data Area |
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Initialize floppy controller |
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Initialize hard disk controller |
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Initialize local bus hard disk controller |
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Jump to UserPatch2 |
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Disable A20 address line |
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Clear huge ES segment register |
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Search for option ROMs |
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Shadow option ROMs |
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Setup power management |
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Enable hardware interrupts |
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Scan for F2 keystroke |
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Clear in-POST flag |
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Check for errors |
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POST done - prepare to boot operating system |
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Check password (optional) |
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Clear global descriptor table |
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Clear parity checkers |
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Check virus and backup reminders |
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Try to boot with INT 19 |
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Interrupt handler error |
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Unknown interrupt error |
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Pending interrupt error |
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Initialize option ROM error |
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Extended Block Move |
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Shutdown 10 error |
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Keyboard Controller failure (most likely problem is with RAM or cache unless no video is present) |
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Initialize the chipset |
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Initialize refresh counter |
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Check for Forced Flash |
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Do a complete RAM test |
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Do OEM initialization |
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Initialize interrupt controller |
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Read in bootstrap code |
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Initialize all vectors |
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Initialize the boot device |
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Boot code was read OK |
Quadtel BIOS:
Error Messages | Description |
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System is booting normally |
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The CMOS RAM is faulty. Replace the IC if possible |
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The video adapter is faulty. Reseat the video adapter or replace the adapter if possible |
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Peripheral controller error | One or more of the system peripheral controllers is bad. Replace the controllers and retest |