Well, i've pretty much exhausted every test i can think of. heres what i've done so far: swapped hard drives-video cards-memory-power, removed all unessential equips like pci cards. Here is a list of recurring problems. After resets the power remains on but the monitor goes into power save mode and nothing appears to be happening, during windows installation it will blue screen with driver_irq_not_less_than_or_equal and then usbport.sys is shown at the bottom(regardless of hardware), freezes during hard drive formatting(only did that once). this next problem is interesting, i can't explain it as being the rams fault: placed both sticks of my kingston pc 3200 512mb ram into dimm slot 1 and 2 respectively, ran memtest86 from bootable cd, the damn thing freezes at test 2 or 3 i believe with 14% every time. theres no error reported, the system freezes completely(i have to switch it off in the back or hold the power button for 5 seconds, never tried the reset button). after that happened i tried the first stick in dimm slot 1 with nothing in slot 2 or 3. everything was fine.....no errors no freezing. same thing with stick number 2 solo in slot 1. i then put both sticks back in slot 1 and 2 and tried it again. freezes the exact same way on test 2 or 3 at 14%. next i tried both sticks in slot 2 and 3. ran for hours no errors or freezing. the only thing i can't replace to test the board is the cpu. do i have enough to go on to assume with close to 100% certainty its the mother board? also i was curious about something. whats the correct voltage for the cpu? mine is like 1.4x(x < 5 i think). also the tech support at asus helped me set the correct memory timing(i'm still very newb about computers). the board detects everything plugged into it just fine, correct memory size and speed, correct processor and speed, and correct hard drive and cd-rom. if this helps at all here is what i have in my system: k8n4-e deluxe asus mobo, amd 64 3400+ processor, 2 x 512mb kingston pc3200 single sided ram, maxtor sata hard drive, xfx 6600 gt pcie graphics card, and an antec 500 watt power supply, and a tdk cd/rw. any suggestions would be appreciated. also i reflashed the bios to the newest non beta available from asus's website.