http://www.extreme.outervision.com/psucalculatorlite.jsp
This should help. Power supplies are the most overlooked part of a PC.
Make sure to tick 16X PCI Express and to also tick on capacitor aging percentage (probably 25% for your, but still, they might be more damaged as you obviously have a crappy grade B PSU, tier 4 or tier 5 if you will). Capacitors on your mainboard and graphics card get to leak, as they have poor quality current that fluctuates a lot from very poor PSU performance, which worsen your case.
Either you change the PSU, or you'll end up with the whole system being damaged.
By the way, I've re-calculated my system power consumption, and apparently at 100% load everywhere, it's eating something like 715 watts. I've got 1 graphics card (overclocked) + 1 CPU (overclocked), 2 DDR1 sticks (overclocked), mainboard is DFI Lanparty (FSB is overclocked), 2 HDDs, 2 DVD writers, a couple fans, USBs PCI cards. My Power Supply is 600 watts, but a tier 2, which is very good, but underpowered in some extreme situations for my current need.
EDIT: more help at http://www.xtremesystems.org/forums/showthread.php?t=108088
This should help. Power supplies are the most overlooked part of a PC.
Make sure to tick 16X PCI Express and to also tick on capacitor aging percentage (probably 25% for your, but still, they might be more damaged as you obviously have a crappy grade B PSU, tier 4 or tier 5 if you will). Capacitors on your mainboard and graphics card get to leak, as they have poor quality current that fluctuates a lot from very poor PSU performance, which worsen your case.
Either you change the PSU, or you'll end up with the whole system being damaged.
By the way, I've re-calculated my system power consumption, and apparently at 100% load everywhere, it's eating something like 715 watts. I've got 1 graphics card (overclocked) + 1 CPU (overclocked), 2 DDR1 sticks (overclocked), mainboard is DFI Lanparty (FSB is overclocked), 2 HDDs, 2 DVD writers, a couple fans, USBs PCI cards. My Power Supply is 600 watts, but a tier 2, which is very good, but underpowered in some extreme situations for my current need.
EDIT: more help at http://www.xtremesystems.org/forums/showthread.php?t=108088