Calculating Power Requirements

Ease · 10 May 2009 at 17:01

This may be blindingly obvious, though I've been unable to find anything on it, but is there an easy way to calculate how much power you need to run your system? As in, which PSU you should buy? For example, could you say something like;

Q6600 = 90W
Samsung F1 x 2 = 50W x 2
HD4870 = 90W

Min PSU = 280W

Or something like that? I know most CPUs have Power Consumption labelled everywhere, but I haven't seen it on many/any other components.

bigmac121 · 10 May 2009 at 17:56

Here you go bro! http://www.thermaltake.outervision.com/index.jsp

Ease · 10 May 2009 at 17:57

Nice one BigMac! Weird, at 100% power apparently my system would only use 411W! I guess my 650W will last me a few upgrades!

bigmac121 · 10 May 2009 at 18:04

No probs! I have a Hiper 630w from 07. 5 sata HDD's 1 Sata RW a ATI 4870 Q8200 and I can STILL add another 4870!!

siumatfung · 10 May 2009 at 18:29

bigmac121 said:
No probs! I have a Hiper 630w from 07. 5 sata HDD's 1 Sata RW a ATI 4870 Q8200 and I can STILL add another 4870!!

holy **** thats immense!

Amleto · 10 May 2009 at 18:52

http://extreme.outervision.com/psucalculatorlite.jsp

looks very similar to the one above.

Corasik · 10 May 2009 at 19:18

Ease said:
Nice one BigMac! Weird, at 100% power apparently my system would only use 411W! I guess my 650W will last me a few upgrades!

Those PSU calcs, generally give recommended PSU size, rather than an actual estimate of the power used, My own system only draws 250W from the mains, but the PSU calcs still recommends a 384W supply.