[Rand al Thor]

Right. What, if anyone knows, is that max hardware a 400W power supply can run. I know I'd need to get the exact model specs to know for sure but just as an approx first. What I've got running on it is:

An AMD 64 3700 and its Mobo with 4 sticks ddr
NVidia Geforce6800GS
Sound blaster audigy (or sumink)
usb extension card
2x SATA hard drives, one 250GB the other 160GB
2x IDE hard drives, one 200 the other 150
A Nec DVD/CD RW.

I think that about covers it. If needed or anyone wants me to Ill post the exacts later. But I've noticed a few crashes recently, seem to be mostly graphics based so I was thinking that it could be the Geforce reaching for extra power that aint there when its trying to ramp it up.

[CP5670]

What actual model is it? The wattage ratings don't mean anything by themselves. The components actually won't need much more than 150W on full load, maybe 170W at the most, but there are a lot of generic "400W" PSUs that can't supply that.

[Nuke]

yes keep in mind thats the peak number, no psu can run at its stated output for long periods of time without burning out. be sure to look at the label and check the normal operating wattage.

[TrashMan]

What actual model is it? The wattage ratings don't mean anything by themselves. The components actually won't need much more than 150W on full load, maybe 170W at the most, but there are a lot of generic "400W" PSUs that can't supply that.

I gots me a 550W one...not that I will ever need that much, but ya never know

[Sandwich]

Read for great justice: http://www.silentpcreview.com/article28-page1.html