BIOS Updates forum

Maybe CMOS is larger than 256 bytes on your motherboard? Try to read/write 384 or 512 bytes... Maybe this is the key...

You should read all data by ports 72h/73h.
Try this CMOS editor - i've use it on ASRock K8Upgrade-NF3 (AMI BIOS 8 ) and it works fine:
http://www.rebelshavenforum.com/sisubb/ ... 2;t=000086

This is because new BIOSes (not only AMI but also latest version of AWARD 6.00 too) uses 256-bytes length CMOS. Use ports 0x72 and 0x73 (instead 0x70 and 0x71) to access all data in CMOS-memory.

Use AMIBCP 3.13 - you can find it at rebelshavenforum.com.

Hi!
I have Soltek KT600C1L motherboard (AmiBIOS 7). I've write in asm program to change memory timings and compile it with nasm to *.com. Can i use com2rom to convert this program to *.rom and add it as module to my BIOS? Or schould i use another program than com2rom?

Sorry form my english...