Lỗi bios rom checksum in progress or failure năm 2024

What is BIOS screen error message means?

BIOS ROM checksum error - System halted

The checksum of the BIOS code in the BIOS chip is incorrect, indicating the BIOS code may have become corrupt. Contact your system dealer to replace the BIOS.

CMOS battery failed

The CMOS battery is no longer functional. Contact your system dealer for a replacement battery.

CMOS checksum error - Defaults loaded

Checksum of CMOS is incorrect, so the system loads the default equipment configuration. A checksum error may indicate that CMOS has become corrupt. This error may have been caused by a weak battery. Check the battery and replace if necessary.

CPU at nnnn

Displays the running speed of the CPU.

Display switch is set incorrectly

The display switch on the motherboard can be set to either monochrome or color. This message indicates the switch is set to a different setting than indicated in Setup. Determine which setting is correct, and then either turn off the system and change the jumper, or enter Setup and change the VIDEO selection.

Press ESC to skip memory test

The user may press Esc to skip the full memory test.

Floppy disk(s) fail

Cannot find or initialize the floppy drive controller or the drive. Make sure the controller is installed correctly. If no floppy drives are installed, be sure the Diskette Drive selection in Setup is set to NONE or AUTO.

HARD DISK initializing Please wait a moment

Some hard drives require extra time to initialize.

HARD DISK INSTALL FAILURE

Cannot find or initialize the hard drive controller or the drive. Make sure the controller is installed correctly. If no hard drives are installed, be sure the Hard Drive selection in Setup is set to NONE.

Hard disk(s) diagnosis fail

The system may run specific disk diagnostic routines. This message appears if one or more hard disks return an error when the diagnostics run.

Keyboard error or no keyboard present

Cannot initialize the keyboard. Make sure the keyboard is attached correctly and no keys are pressed during POST. To purposely configure the system without a keyboard, set the error halt condition in Setup to HALT ON ALL, BUT KEYBOARD. The BIOS then ignores the missing keyboard during POST.

Keyboard is locked out - Unlock the key

This message usually indicates that one or more keys have been pressed during the keyboard tests. Be sure no objects are resting on the keyboard.

Memory Test:

This message displays during a full memory test, counting down the memory areas being tested.

Memory test fail

If POST detects an error during memory testing, additional information appears giving specifics about the type and location of the memory error.

Override enabled - Defaults loaded

If the system cannot boot using the current CMOS configuration, the BIOS can override the current configuration with a set of BIOS defaults designed for the most stable, minimal-performance system operations.

Press TAB to show POST screen

System OEMs may replace the Phoenix Technologies' AwardBIOS POST display with their own proprietary display. Including this message in the OEM display permits the operator to switch between the OEM display and the default POST display.

Primary master hard disk fail

POST detects an error in the primary master IDE hard drive.

Primary slave hard disk fail

POST detects an error in the secondary master IDE hard drive.

Resuming from disk, Press TAB to show POST screen

Phoenix Technologies offers a save-to-disk feature for notebook computers. This message may appear when the operator re-starts the system after a save-to-disk shut-down. See the Press Tab & message above for a description of this feature.

the problem here is as Fed notes. It is from the BIOS flash; for some reason the flash failed in some degree and the checksum (also part of the flash) no longer matches the checksum of the actual BIOS code.

Some BIOS's allow for "emergency" flash procedures with a floppy; but this is a weird case.

Most BIOS failures do not get far enough into the POST to show video. They generally emit a beep code. Then you would (if the bios supports it) perform the "emergency" reflash (my old K6-2 had a teensy piece of true ROM data that was entirely unchangable that would be able to reflash the BIOS from a floppy using rudimentary IO functions).

One might determine that the error might mean the failure of that teensy piece of true ROM data. However, that is checked long before the post even begins, so that would undoubtedly result in a Beep code. Additionally, the message shown indicates that what is executing is this emergency fallback BIOS "Award Bootblock BIOS" runs before the actual BIOS ROM is initiated, checks the BIOS checksum and then runs the BIOS code; however, in this case the BIOS code is not valid. the procedure differs based on the actual motherboard and BIOS configuration, but generally requires simply a bootable floppy (containing the award Flash utility and the correct BIOS BIN file). Note that as the system is now it does not recognize anything but the core basics.

Another possibility is bad RAM, which could have interfered either during boot or when the BIOS code was loaded to perform the checksum. Seems odd that bad memory would only manifest after a BIOS Flash.

pre-emptive snark: Yes. I know what a ROM BIOS is. I also know that you don't flash the CMOS so I have no idea why some people think everybody else thinks so.

If ROM is read only memory how did she break it with a bios update?

Only a small piece of ROM is read-only; the Award Boot Block that is being used by the OP's machine is that tiny piece of rudimentary code that understands only the very basics necessary to reflash; basic floppy drive support, basic text mode display, etc. It's only purpose is to allow the user to reflash the BIOS.

PS: this "Bootblock" BIOS is generally not on the BIOS Chip at all but rather on a separate chip soldered onto the motherboard; if it was bad however, there would be no display at all, and instead they would have gotten the incorrect BIOS checksum beep code (or something equivalent). The Bootblock BIOS checks it's own checksum before it executes itself. If it fails, it emits a beep code. It cannot display any video at that point, because it hasn't done any actual hardware probes to know what video adapter is available and therefore how to engage any text mode display, nor are any BIOS routines available for it to write text to the screen anyway, being that it suspected them of being corrupt. In this case the bootblock BIOS is telling them that their main (flashable, EEPROM) BIOS is probably corrupted. It can display this message because the Bootblock code has a very rudimentary understanding of basic text mode display and Floppy drives.

You'll note I said some things twice. This was important to prevent being labelled as somebody who "clearly is confusing the CMOS checksum error with a BIOS Checksum error".