I've had this computer for a while - its a non-overclocked 4800+ (S939) with a single 8800GTS (also stock, bar the Accelero S1 passive heatsink and zalman ramsinks), 4GB of DDR400 (4x1GB) on an old generic nforce mobo (think its a Winfast) and a Creative XiFi Gamer soundcard.
As of yesterday, it refuses to boot - it goes through the post okay, I can get into the bios (and have already disabled any auto shut-off features) or start booting Vista but it cuts out shortly after. I've tried clearing the CMOS, unplugging the various drives, swapping out the memory, re-seating the CPU and the expansion cards to no avail - it still turns itself off after 15-30 seconds.
The PSU is a 650w Hiper modular PSU rated for SLi, so it should be more than enough to power the rig - it only has 2 x HDD and one DVD-RW. Still, it does seem to be the only part that hasn't been swapped out - any ideas? Are there any known PSU faults that could cause the PC to switch off?
As of yesterday, it refuses to boot - it goes through the post okay, I can get into the bios (and have already disabled any auto shut-off features) or start booting Vista but it cuts out shortly after. I've tried clearing the CMOS, unplugging the various drives, swapping out the memory, re-seating the CPU and the expansion cards to no avail - it still turns itself off after 15-30 seconds.
The PSU is a 650w Hiper modular PSU rated for SLi, so it should be more than enough to power the rig - it only has 2 x HDD and one DVD-RW. Still, it does seem to be the only part that hasn't been swapped out - any ideas? Are there any known PSU faults that could cause the PC to switch off?
