Seasonic S12 Engery+ 550w + GTX 295?

Canon

2[H]4U
Joined
Aug 12, 2004
Messages
2,503
Well I have been looking around to get an idea of whether this is enough power to run my current machine (I believe I have listed all relevant specs), with the Nvidia GTX 295 card but I'm still not too sure.

When I bought this power supply, I figured it'd be enough for a little while, but I guess that was about a year and a half ago. LOL! It seems like a great power supply and is nice and quiet (I like that).

This unit has a combined output of 41A accross the 4 +12v rails. It outputs 18A per +12v rail.

Am I a little to close to the edge to consider just swapping out my 8800 GTS for the GTX 295?
 

Zero82z

Fully [H]
Joined
Jan 20, 2004
Messages
27,897
You'll be close to the edge, but you should still be able to handle it.
 

Canon

2[H]4U
Joined
Aug 12, 2004
Messages
2,503
Thanks for your input.

I'm still a little on the edge as to if I think the upgrade from my 8800GTS 320mb is worthwhile but gaming at 1920x1200 does push this card to it's breaking point in some of the modern games out there when you start turning everything up.
 

notalent420

Limp Gawd
Joined
Aug 15, 2004
Messages
351
nVidia recommends a 680W power supply or one that has at least 46 amps on the 12v rail(s).

You could probably get away with a smaller one but it would have to have at least 46 amps to run safely and efficiently.

Update: I looked at the specs of your PSU and it says it has 41 amps on the 12 volt rails. I would probably look into upping your PSU to at least a 650 watt.
 

MrWizard6600

Supreme [H]ardness
Joined
Jan 15, 2006
Messages
5,779
You'll be close to the edge, but you should still be able to handle it.
nVidia recommends a 680W power supply or one that has at least 46 amps on the 12v rail(s).

You could probably get away with a smaller one but it would have to have at least 46 amps to run safely and efficiently.
No hes not, and Nvidia's figures are cover-our-ass figures. I would really like to drill this into peoples head, the brand name means 10 times as much as the wattage rating. I would much rather have a BFG 550W LS or Corsair 500W than rocketfish 800W.

X-bit labs has the GTX 295 pulling just over 210W, and the rest of your system isnt going to pull over 200, putting you at a little more than 400.
 

Zero82z

Fully [H]
Joined
Jan 20, 2004
Messages
27,897
No hes not, and Nvidia's figures are cover-our-ass figures. I would really like to drill this into peoples head, the brand name means 10 times as much as the wattage rating. I would much rather have a BFG 550W LS or Corsair 500W than rocketfish 800W.
I'm well aware of that. However, the peak efficiency/reliability range for a PSU is in the 50-60% load zone, which the OP will not be in with his current PSU. Plus, you must also consider the age of the unit, because a PSU's load capacity diminishes gradually over time. His current PSU is certainly capable of handling it, but it is getting somewhat close to the PSU's limits, and it will only get closer as time goes on.
 
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