Quote Originally Posted by tekjunkie View Post
I had the same problem as you do when i bought the board and I was pissed off that I could not get the board stable even @ stock speeds. Granted, I was one of the first ones to jump on the bandwagon of 790i and the BIOS was so immature at that time. Anyway, here is what I did to get the board stable @ stock speeds.Give it a shot and see if it helps.


Leave everything on auto except the memory voltages and timings and manually enter the vdimm and the timings that your memory were rated for and run memtest for atleast 5 passes. If memtest freezes or errors out, go into "Voltage Monitor" section of the BIOS and see what are the values for VTT and VSPP and increase them by a notch(usually it's the SPP voltage). After you are memtest stable, you can boot into windows and run SPI or prime or whatever you run for the stability test. Hope this helps.


Damn, Memtest ran for 3 hours without an error. Lasted only about 15 minutes with Vista loaded - is it time for the bin, or should I be looking for a driver clash of some sort?