MY ax34 mobo recently started sounding an alarm constantly at startup. The video displayed "BIOS ROM checksum error Decting floppy drive A media Drive A error. System halt. I have changed CPU, memory, power supply, disconnected everything except mb, cpu, mem, and video, and still the same.
Firist thing i would do is clear the CMOS by means of the jumper onboard, and at the same time take the button cell battery out of the board and let it sit for 5ish mins to clear the cmos completely. If when you reinsert the battery and put the jumper back you still have this issue i would recommend flashing the BIOS. If you have never done this make sure you dont have any storms near and if you have bad power issues (electric company sucks) i would recommend using a backups so you dont damage the BIOS. Dwonload http://usa.aopen.com/userdownload_List.aspx?RecNo=4490&Model=AX34 Follow the instructions to flash your bios. HOWEVER READ THIS!!!!!! Do you have a: ax34 ax34 II ax34 Pro ax34 Pro II ax34-U If you have ANYTHING other than the ax34 then goto http://usa.aopen.com/download.aspx to get the one for the right version. IT IS ESSENTIAL THAT YOU DO OR YOUR MOTHERBOARD WILL BE UNUSABLE!!! Anywho let us know :-D
U change u r mother board early
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I can't access the "A" drive to boot so I don't know how I am going to flash the bios.
Is there another way?
I took the CMOS battery out for 4hrs, shorted the CMOS jumper, returned it to normal, but when I turn it back on, I get the same message:
"BIOS ROM checksum error
Decting floppy drive A media
Drive A error. System halt."
It will not access drive "A" thus I cannot boot
from the floppy. All the while the alarm sounds continously.
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