Is my supply enough

[rennocneb]

I currently have a 750w supply with a single 60A rail. Im running a core i7 system overclocked at below stock vcore at 3.6. It has 2 SATA Hard Drives and a DVD Burner. I also have a GTX 295 in it. So im fine power wise, my question can i get away with sticking my 9800gtx in there and using it for physx with this supply?

 

[Biskquik]

I say yes but I cringe a bit looking at bit-tech's review in power consumption:

http://www.bit-tech.net/hardware/graphics/2009/01/08/nvidia-geforce-gtx-295-quad-sli-review/16

though their test setup is slightly higher than yours:

http://www.bit-tech.net/hardware/graphics/2009/01/08/nvidia-geforce-gtx-295-quad-sli-review/3

you might be moving into a 80%+ area where you really want to avoid.

Edit: can you give the manufacturer and model of the unit too?

 

[rennocneb]

i notice the measurements in the above links are for wall socket power so if the supply was 85% efficent, being generous id say. the system is really only using roughly 625 watts i should draw a bit less since it would be 1 295 and one 9800gtx. i dunno i think it would be ok but i know the common response would be to go a 1000w supply. of course i was told originally i needed the supply i have for a quad and a 8800 ultra. though i needed no where close to that.

 

[Zero82z]

You'll be okay with what you've got. You will be past the comfort zone, but it should still have no problem functioning at that load. That's assuming you've got a good PSU, by the way. Which model specifically do you have?

 

[rennocneb]

PC Power and Cooling Silencer 750 Quad from a couple years back.

 

[Zero82z]

Yeah, you're fine.