|If you don't have a floppy drive connected to the mboard, connect one. |
When you have a floppy drive connected, while booting,
- if the led on the front of the floppy drive comes on for a while AFTER the usual brief flash you always see while booting, the flash chip is probably okay, the boot block portion of the bios code is still there, and you can attempt to flash it again.
- If the led on the front of the floppy drive DOES NOT come on for a while AFTER the usual brief flash you always see while booting, the flash chip has probably physically failed when you attempted to flash it. In that case you can't flash it again, and your mboard is useless until you replace the flash chip.
If the flash chip is in a socket so that it is removable, you can replace the flash chip with a new one that has already been flashed , and the mboard will work fine again. The cheapest way to do that is to get a new bios chip that has already been flashed with the latest manufacturer's bios update from a vendor on the web.
If the flash chip is soldered into the mboard, there are a few vendors on the web that can expertly reove it and replace it with a new one that has already been flashed, but the charges for that including shipping there and back are often more than a new or used mboard of the same model.
can do that, but that service is ONLY if you are in the US.
Regarding your 0x000000A5 error.
You've always got to keep in mind that STOP errors can be caused by many things, and often the message is displayed because something else is wrong but Windows can't tell you directly what the problem is, so the primary cause or causes of the error don't actually apply.
Whenever there is a suggestion that you may need to flash your bios, 99.9% of the time, that's not actually necessary, unless release notes for the bios version actually say they will cure a problem you are having, or will support newer cpu types, etc.
You are taking a big risk when you flash your bios - if the flash fails, and/or the flash chip physically fails while flashing (this is COMMON - these cheap flash chips can only be flashed an unpredictable small number of times), you will have a mboard that will not boot.
This Microsoft article lists many reasons you may get this error - some can be indicated by the particular code strings you are getting.
"Stop 0x000000A5" Error When You Are Installing Windows XP
However, when I look at many "hits" you get when you search using: Stop 0x000000A5
I find it can be caused by
- if you get it while attempting to install XP
- your mboard bios ACPI support actually IS not compliant with XP's support of ACPI - however, that's extremely unlikely to actually be the case unless the mboard model is OLDER than when XP was first released (2001?) , which DOES NOT apply to your mboard model
- ram problems - try re-seating the ram, if you just added ram, remove it and try the ram that previously worked fine -test the ram with a memory diagnostic, fix what is wrong with that
- when you have certain devices installed that did not come with the mboard - unplug everything including cards in slots not necessary to run Setup while running Setup
- if you get it after Windows has been installed
- when you have certain devices installed that did not come with the mboard - try removing the device(s) you added to see if the problem goes away
- after you have used some repair program, or have used an anti-malware program to remove something - in that case running a "Repair install" of Windows procedure usually fixes the problem.