I gave my P3V4X to my brother when I bought me a new mobo and cpu (P3 850E). When I owned the thing, I didn't have any issues with it except the 4X AGP thing. Other than that, it ran like a champ. I gave him the mobo, my old cpu, and the ram, plus he has an old geforce card that i once used on the same board, which worked fine and dandy also. Oh, and I gave him my powersupply (300 watt) too. Pretty much my whole system. He on the other hand isn't having too much luck getting it to run stable. Issues: Random lockups (games or windows) whole screen blinks in and out (in BIOS and Windows) cpu temps seem to be high too (fan still working) about the screen problem.... i took everything out of the case (mobo, pci cards, and vid card) and set it aside. stuck the bare minimum on it (agp card, ram, cpu) and left all ide drives off. booted to bios and the screen still blinks in and out. tried dropping the agp card to 1x, problem still exists. tried 3 different sticks of ram (1 each time), no luck. Any Ideas? My next thing to try is a new video card (blinking issues) and sound card because it's giving him a joystick error in windows. iaijoy.dll or something like that.