how many watts do i need to run this computer:
Athlon 64 3200+ 939 Socket
Geforce 7800GT 256 Mb pci express x16
Cosair 1 Gb (2 x 512 mb sticks) PC 3200
80 Gb Sata HardDrive
ASUS A8N-SLI Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard
Bigger won't hurt, just make sure it is a brand like Fortron, Antec TruePower, PC Power and Cooling, etc.
A 450 watt should run $70 and up, much less and it starts getting questionable.
It runs quiet and cool, and has plenty of spare wattage, and is built to last.
I was running an Antec TruePower 430watt before that for 2.5 years, and now I am upgrading mobo and CPU, so the 430 will live again in spare build.
nVidia says you need a 500W PSU for that. Pffft. My 485W is rock solid... although it did flip a breaker the other night. But i also had 2x 1500W electric heaters on the same circuit. LOL. Won't do that again.
You should go for a 400 watt power supply from PC power and cooling. Sure they are more expensive than others but the efficiency and quality of their products is top notch. Their 400 watter equals a 500 watt generic.
you would have t actually TRY ot build a machine that used more then this....like 15HDD's with your 27800GTX's and FX60(dual core FX line comming soon) and all PCI slots filled and all USB ports powering something.
could that first 450 watt power supply run this
Athlon 3700+
Seagate SataHardrive 80 GB
CorSair 2 Gb of ram (4 x 512mb)
2 x Geforce 7800GT SLI
ASUS A8N-SLI Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard
Dvd Rom Drive
Cd Rom Drive
Floppy Drive
This brand of PSU sucks. I know because I worked with them before. had 10 units and 40 percent failed in less than six months. I gotta give it to them though, they replaced said units. The experience is downright awful though.