7800 GTX Power Supply

[socalcaz]

The manufacturer recommends at least a 450 watt power supply. Is a 500 watt going to be sufficient? Will a 500 watt power supply limit overclocking potential? I am not going to SLi.

[Zeratul]

Re: 7800 GTX Power Supply

It should be sufficient. Wouldnt hurt going higher though.

Also make sure its a good brand. Some brands 500 watt psu's are like other companies 400 watt Psu's.

[DrunkenPirate]

Re: 7800 GTX Power Supply

You can any power supply that runs at least 26 amps on the +12V rail, look at the specifications before purchasing one.

[socalcaz]

Re: 7800 GTX Power Supply

You can any power supply that runs at least 26 amps on the +12V rail, look at the specifications before purchasing one.

This is the one I purchased:

http://www.newegg.com/Product/Product.asp?Item=N82E16817182009

[DrunkenPirate]

Re: 7800 GTX Power Supply

Rosewill aren't exactly stellar.. and that is a single rail, but it should be ok.
IMHO PSU's is an area where you definitely should not cut corners on.

[socalcaz]

Re: 7800 GTX Power Supply

Rosewill aren't exactly stellar.. and that is a single rail, but it should be ok.
IMHO PSU's is an area where you definitely should not cut corners on.

What problems would one expect if a power supply isn't sufficient?

[keel]

Re: 7800 GTX Power Supply

Random resets are a popular one, failure to POST.. you usually know something is wrong.

[DrunkenPirate]

Re: 7800 GTX Power Supply

What keel said basically, usually rebooting is a classic one when the system is put under heavy loads such as 3D gaming. However I do know people that are running systems like yours with worse PSU's so I think you should be ok.

[socalcaz]

Re: 7800 GTX Power Supply

What keel said basically, usually rebooting is a classic one when the system is put under heavy loads such as 3D gaming. However I do know people that are running systems like yours with worse PSU's so I think you should be ok.

New Egg hasn't processed the order yet so I think I could cancel the PSU order and get something else. What would you recommend for a 7800 gtx (min of 450 watt)? So if the computer boots and is stable will it be ok or could there be problems down the road? Thanks!

[DrunkenPirate]

Re: 7800 GTX Power Supply

How much are you willing to spend?

[socalcaz]

Re: 7800 GTX Power Supply

I am willing to spend around $125

[djstubbs]

Re: 7800 GTX Power Supply

OCz Modstream 520w.

[socalcaz]

Re: 7800 GTX Power Supply

OCz Modstream 520w.

Can you tell me the difference between the Modstream and this one (besides the 20w)?

http://www.newegg.com/Product/Product.asp?Item=N82E16817182009

Because they both seem to have a 12V current rating of 26A. I truly don't know what I am talking about though.

Thanks