Quote Originally Posted by roope
With 1407 BIOS I couldn't use manual timings to RAM. System booted up normaly if I had SPD enabled but with manual timings it didn't even POST and I had to clear CMOS everytime just to get back to BIOS!? And this was with stock 266 FSB.

Now I'm back using good ol' 1305 and everything works like charm. No problems setting manually spec'd 5-5-5-12 for my Corsair XMS2's. Anyone else got the same problem with new BIOS?
Well, I never figured out WHY my machine didn't POST at all with 1407. I have lots of practice now at resetting the CMOS. One ASUS phone-support tech told me that since 1407 didn't fix any specific problem I actually had, I should just flash back to 1305 which worked and be happy and never flash again until I have a need that they've fixed.

I do run my Corsair TWIN2X2048-6400C4 manually at 4-4-4-12, but never got around to resetting everying to stock just to convince 1407 to boot.

I guess I'll tell ASUS that maybe that's the problem, if they ever respond to my email asking for more than a brush-off when their latest BIOS doesn't work...