Hi errbody.
I'm currently rebuilding my rig with a custom watercooling setup and I have a eVGA Z68 SLI with bios 105 (A05) with a 2500k that was constantly freezing when idle, so I decided to flash the new R22 bios to see if it would fix it. Seeing that bioses before it also had some changes to the fan headers, I thought I'd maybe get fan control of some of the FOUR PWM headers that have NO fan control. Boy was I wrong...
I flashed it according to LVcoyote's DOS guide. Restored optimized defaults and then flashed from USB. It seemed to go fine, simply wrote to flash and then instantly shut down. I removed power from the machine and held the 'Clear CMOS' button down for 10 seconds. Turned it back on, went straight into bios and restored optimized defaults again. Noticed that it took a while to get into bios and the font and settings had changed quite a bit. Looked around the new bios, memory timing settings were not in a straight line, sort of scattered around the area where they are and when I tried to open the Intel ME settings, it gave me an error, said something about being unable to load a module or something. And froze. Rebooted and went back into bios to set the SATA controller to RAID, so it would start Windows, noticed some nice changes there like a SSD setting, which I chose since I was running a Corsair X64 SSD. Save & reboot and simply got a black screen after POST. Nothing. Hmmmm. Decided to try and boot again to the USB stick, since it should work no matter what the SATA controller was doing. Rebooted, pressed F7, selected the USB stick. Black screen. Nothing. Tried messing around a bit more and at some point it wouldn't even POST, it just gave a 55 error code and beeped. Then I decided that the flash fracked up somehow and switched the BIOS select jumper to the backup setting. Turned it on and thankfully it had the old A04 (104) bios on it. Started fine. Thank god for dual bios!
Regarding the freezing, i also suspected the SSD and I am currently testing that out.
Now after reading through this board, I've decided that bios A05 might be a better choice but I don't want to flash the backup chip. So...
Is there any way to flash the main bios chip while running on the backup chip?