hi all,i am in strife, i tried to upgrade my BIOS for my A7V8X ASUS mobo but now when i reboot it says BIOS ROM CHECKSUM ERROR and it goes to A:/ in dos and i have no input on the keyboard or anything!help!!!

Check your owners manual for the MB... should be something in there about dumping the BIOS and reverting back to the factory BIOS. On my A7N8X it's as simple as removing the battery and shorting a jumper (which just happens to be next to the battery).Good luck,

thanks i am reading the manual it has a reset switch, will that help?

Probably. My wife has the same motherboard, but she'll kill me if I start fiddling around with her BIOS, just to try out a few options :).Another thing, as you obviously have access to a computer, go to the Asus website, and download another BIOS that is specifically for your motherboard - you may have inadvertently installed one which was for an earlier/later revision. Copy that to a floppy, following the instructions, and try to boot from that.Cheers,Gosta.BTW: Next time, please do make a copy of your current BIOS, before you upgrade - this is one instruction that's worth adhering to :). http://hifi.avsim.net/activesky/images/wxrebeta.jpg

thxbut i have a major problem, i dont have any access to the keyboard, nothing, it just boots to A drive, and i cant do anything from there.

no keyboard access.help!

Hi Clayton,what do you have in your A: drive? A new BIOS should give you access to the keyboard.OTOH, did you actually complete flashing your BIOS? It may be asking for the new one to be entered.Cheers,Gosta.http://hifi.avsim.net/activesky/images/wxrebeta.jpg

Oops, sorry, looks like you'll have to try and reset the BIOS via the jumpers.Also try removing the battery, and give it some time to reset (some chips can hold information for a very long time), then try again - hopefully you'll be back to your original BIOS.EDIT: Then again, what type of keyboard do you have? If it's anything fancy, try plugging in the oldest one you can find...Cheers,Gosta.http://hifi.avsim.net/activesky/images/wxrebeta.jpg

hi, thx for your input, now i have access to the keyboard and i am installing an older version, let me see,fingers crossed!

ok i did itnow it says" You have flashed the EPROM, it is recommended that you turn off the power, enter sETUP and LOAD Setup DEFAULTS to have CMOS upload with new bios settings"what do i do now?

Let me know how it goes - I have the A7N8X, and the A7V8X on my wife's computer, so we should be able to find the problem...Cheers,Gosta.http://hifi.avsim.net/activesky/images/wxrebeta.jpg

ok well i think i will power off, start her cold then press DEL key, but then what?

Right, turn off your computer, wait half a minute, start it back up and go into the BIOS (Delete key). Then select the option ' Setup defaults'. This will set the BIOS to default to what it considers best for your hardware - it may not be the best for your performance, but you can change those settings later. First check, if Windows boots OK after all this...Cheers,Gosta.http://hifi.avsim.net/activesky/images/wxrebeta.jpg

Find the option to setup defaults and select it.http://hifi.avsim.net/activesky/images/wxrebeta.jpg

hi Gosta, thx for your help, she is all ok now, i just have to fix a few things, like clock etc, and set the CPU speed, she loaded at the lowest settings,i think she is right now,thanks again.