power supply questions

The wattage that a PSU is rated is how much it CAN provide, not how much it WILL provide. So if you have a setup that uses 300W, the 650W PSU will give you 300W. You can go over as far as you like because the PSU only supplies what is needed.

As for the 650W for $30, I'd be careful. What brand is it? Post a link for us to check out. Cheap power supplies are typically pretty crappy.
 
i wouldn't get a cheap one like that. if it blows it might take part of your system with it. i paid $100ca for my 500watt.
 
if it's brand new like he says so it would have a manual too. it's probably really old and about to stop working.
 
Chiefmax 650W for $20? Don't do it.... That thing'll blow as soon as you touch it. :p

But seriously, it's a knockoff brand. Look for something with better quality and a known name.
 
do you think 400 watts will be good enough to run a
amd 64 3500+
256 meg vid card
mobo
router
keyboard ,mouse
(1) sata 150 hard drive (300-320 gig)
2 floppy drives
1 cd drive
1 cd rewritable drive
speakers

is estar or echo star a brand name psu or are they generic
 
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