The Original Ralph :
I just used that Flash 2 Tool in BIOS and had good luck with it AFTER un-installing the AI Suite III.
frankly, i'd un-install the AI Suite III and leave it un-installed. There have been a number of issues with it's coding being defective and causing issues, documented over on the microsoft download center forums. There's an AI Suite cleaner that raja@asus recommended using after un-installing the suite - i don't have a link to it, but in the ASUS Motherboard sticky thread raja posted a link to it - he mentioned it in the first few pages of the thread iirc
I had some similiar issues with bios installing corrupted, but didn't have any issues locating the CAP file. Just to be sure, have you done the obvious and renamed the CAP file, ie when you extract it it's titled something like Z97M-Plus-2605.CAP, and needs to be renamed as Z97MPLUS.CAP
as above poster said, put it on your HD as well as on a FAT32 formatted USB.
For the heck of it, i'd clear CMOS before trying to update - instructions will be in your mobo manual, fairly simple to do and will only require you to reset the time & date in BIOS when you reboot
Ok, thanks for advice. I'll try that. I did rename the file.
EDIT
Well I managed to update the BIOS, but I still have the RAM problem:
I have 8GB PC3-12800 (1600MHz) Intel Extreme Masters Memory 2x 4GB sticks installed, but only 1 seems to work.
When checking my PC specs on Windows it says 8GB installed, but only 3.96 available. The BIOS says there's only 4GB, but it does show that 2 DIMM slots are filled with 4GB each. Anyone able to help with that?
First time posting btw, tell me if you need more info/specs