#64040 by DoutorHouse
Mon Mar 06, 2017 3:43 am
Hello everybody!
I'm having a big problem and i could really use some help from all the experts here. I recently bought a second-hand Acer Veriton M265 desktop computer so i could play some LAN games with my son. It came with windows 10 x64 pre-installed and everything was working fine. I decided to downgrade the OS to windows 7 and update the computer bios so i downloaded the latest one from acer's page using the SNID written on the stamp on the side of computer. I got to the bios update page ok and downloaded what seemed the most recent one and proceeded to update the bios on windows using the program inside the zip file. I tried a few times and always told me it had some id error (i don't remember exactly anymore) so i searched for the program options and forced It to update. Apparently it went ok but when the computer restarted, i got a BIOS checksum error and won't allow me to boot to windows (or any other drive so i could flash the bios again with the old one that worked). Apparently everything is working fine and i can enter the bios and check the new version number, change settings etc, but when i restart i get the same error. I tried removing the battery and used a brand new one, but no luck. I also tried changing the bios settings to the defaults but nothing. Even changed the jumper settings on the board but i still get the same error: "CMOS Checksum Bad". Can anybody here please advise me on what i should do next? Thank you so much for any help on this!