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upgrading my PC need power advice? Answered

hey all,

i'm going to be upgrading my PC soon and need to know if i'll need a new PSU to go with it.


CPU: AMD FX 8150
Motherboard: Asus Crosshair V Formula-Z
GPU: Sapphire ATI Radeon 7970HD 

current PSU: Hytec 950w   (can't get any better info than that)


Side question:
will an Asus Commando, intel q6600 & ati 5450 run on a 380w psu?
it will only be acting as a "server" of sorts no heavy lifting

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BurfBest Answer (author)2012-09-02
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furby (author)Burf2012-09-02

i ran my system through that and it was giving me some "interesting" results

High end Desktop
Q6600
ati 7970 HD
4 ddr2 sticks
4 SATA HDD (2 normal, 2 green)
1 dvd burner

5 USB devices
7 case fans
= 450W

that don't sound right. mobo minimum is 500W

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frollard (author)furby2012-09-02

The peak and 'average' power rating on stuff often has some squish room. 450 watts is what it will run full bogged down - having the overhead is a good thing.

For example, my dual gtx460 + oc i5 rig should draw 500+ watts, at the wall I measure 350 at full load. I upgraded from a 450 watt to a 750 watt psu because within reason, a 750 loaded to 300 watts is more efficient than a 450 loaded to 300. Staying away from maximums and having overhead is a good thing. a 950 watt psu is overkill for most anything :D

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