Usually if the hardware system has a problem, the boot process will not go smoothly. A series of different hardware errors can be reported by the system as soon as you turn on the computer.
1. Error messages related to RAM
- 128 Not Ok, Parity Disable
This message appears when the RAM is faulty, or you have installed a type of RAM that is not compatible with the motherboard.
- RAM Test Address Failure
The fault of the chip using memory addressing is broken, since these chips are built into the motherboard, so you have to repair or replace the new motherboard.
Error messages regarding the keyboard
- 8024 Gate – A20 Error
A keyboard error, often caused by a jam, causes the keyboard controller chip to send a continuous signal to the computer.
- Keyboard Stuck Key Failure (Keyboard Error)
Error due to damaged keyboard cord, or key jam.
- Keyboard error, press F2 to continue
This message appears when the system is working but the keyboard is not found. The solution is to remove the keyboard to check if any keys are stuck or not. In case you use a keyboard with a USB port, but this port has not been opened, you must use a temporary keyboard PS2 attached. Then you go to CMOS open up USB port and then insert the USB keyboard to use.
2. Error messages regarding the hard disk
- Bad or Missing Command Interpreter
Error of not finding the command file of the operating system, but usually due to a corrupted hard disk, resulting in file unreadability.
- Bad Partition Table
Error due to hard disk created and improper partition.
- C: Drive Error
Errors due to hard disk parameters are not properly declared in CMOS.
- Disk Boot Error, Replace And Strike To Retry
Error due to computer not finding bootable disk.
- Disk Drive 0 Seek Failure
Error due to data cable, or drive control circuit faulty.
- Disk Boot Failure
Error due to corrupted boot disk, you need to replace another boot disk.
- Hard Disk Failure
The error is due to one of the following reasons: the hard disk controller circuit is broken, the power cord is not attached to the hard drive, the data cable is plugged in the head, or the jumper chooses the master / slave incorrectly.
- File allocation table bad, drive X
There is a disturbance in the hard drive fat that contains boot information, for a variety of reasons. The workaround is a low-level format to reinstall Windows.
- General failure reading drive X
You check the drive to see if there is a boot disk, otherwise the hard drive has a problem. Try turning off the computer and then restarting sometimes this error notifies when the computer has trouble booting if the system’s luck You work normally again.
- Invalid frive specification or drive not ready
Common notice when there is a problem at the boot drive. Old drives often start slowly and get this error. The best way is that you reformat the hard drive and reinstall the operating system.
3. Error messages related to CMOS
- Cmos Battery Stage Low
Error due to running out of battery clock circuit and CMOS, may also be due to incorrect CMOS mounting jumper pin.
- Cmos Checksum Failure
The error indicates that the CMOS data is damaged, possibly due to the battery running out of clock and CMOS circuits.
- Cmos Display Type Mismatch
Error due to incorrect declaration of display card in CMOS.
- Cmos Memory Size Mismatch
Error due to failure of memory chips or unstable RAM.
4. Other errors
- Serial Port Test Failure
Error due to serial port and parallel port do not meet the test at boot time (POST).
- Math Coprocessor Failure
Error due to malfunction of math co-processor.
5. A hard-to-handle hardware error at boot
During the boot process, the computer freezes and you get a fairly general message:
*** Hardware Malfunction
Call your hardware vendor for support
*** The system has halted ***
In addition, there may be some accompanying notices such as:
NMI: Parity Check / Memory Parity Error
NMI: Channel Check / IOCHK
NMI: Fail-safe timer
NMI: Bus Timeout
NMI: Software NMI generated
NMI: Eisa IOCHKERR board x
The most likely cause of a fault lies in the motherboard, mainly related to the RAM memory area, or the cache space on the motherboard or other boards. To resolve the error, you need to perform the following three steps:
Remove the newly installed RAM modules, leaving only the old RAM modules that the computer has successfully booted up. Then reboot to see if the error message still appears. If the error disappears, assume you have solved the problem. Next you will proceed to isolate the wading by attaching one additional RAM stick each time and rebooting.
In addition, Microsoft also provides a RAM diagnostic tool called Windows Memory Diagnostic. This utility will help you check your computer memory and detect their errors.
Check for extra expansion cards
In the next step, you will also experiment similarly with expansion cards. Remove most of the expansion cards currently in the machine, and leave only those that are absolutely necessary, such as a video card.
If no error is given, it means that one of the expansion cards you removed has a problem with its memory. To determine correctly, you reinstall each card and when the error reappears at the time of installing the card, the card needs to be removed from the system.
Check BIOS configuration
If the process of removing RAM and expansion cards is unable to determine the cause of the error, the next thing to do is to check that the motherboard BIOS has been updated to the latest version.
If the latest version has been updated, go to the BIOS section and select the Fail-safe defaults or BIOS defaults section. At the same time, turn off the antivirus function in the BIOS, and switch the status of Plug and Play OS to No.