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Question about the Asus N8800GTS

post #1 of 13
Thread Starter 
Well, tomorow I am planning on going out to buy a Asus Extreme N8800 GTS 640MB PCI-E, and I know it requires a 400Watt PSU, and that's exactly what I have. I was just wondering, would I be safe? or should I underclock the card by about 50core 50mem for safety?

Thanks in advance.
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post #2 of 13
While I am not an expert on these issues, I will say that if your system is stable now, don't worry about it and leave it as is. If you are experiencing instability the best thing would likely be to lower your OC'd settings to maintainable levels.

The 450W minimum that is recommended is just that, a recommendation and it is based on the understanding of all the other potential power demands of a pc like multiple drives, multiple fans, physics cards, sound cards, etc. If you have a rig full of stuff then the 450W may prove to be a necessity. On the flip side, there have been members including myself that have had successful, stable OC's on PSU's that should have never been able to deal with the demands we put on them.
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post #3 of 13
It really depends on the brand. If its an FSP, Seasonic, or Silverstone I'd say yes it would be fine (provided you arn't running quad hard drives, and 6 other peripherals.)

If its a Powmax, Rosewill, Kingwin....other cheap brands...I'd say no.

How many amps does/do the 12volt rail(s) push? I'd recommend atleast 26 amps on a single 12 volt rail, or a total combined of 30 amps on a dual 12v PSU.
    
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post #4 of 13
Check your current PSU for the amperage rating of the 12V rail(s). Download NVTweak to unlock some overclocking (or underclocking) settings via the nVidia control panel.

I think underclocking til your upgrade is a prudent decision.
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post #5 of 13
Thread Starter 
Quote:
Originally Posted by Xavier1421 View Post
Check your current PSU for the amperage rating of the 12V rail(s). Download NVTweak to unlock some overclocking (or underclocking) settings via the nVidia control panel.

I think underclocking til your upgrade is a prudent decision.
Thanks man.

Well I'm getting my butt to bed, because the faster I fall sleep, the sooner the card gets here.

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post #6 of 13
I'd definitely would not put that GTS there (for now), #1 because as it is, the system could be drawing a lot of power because of your Dual Core Presler and they use more power than C2D.

IMO, if you can wait till you get a, perhaps, dedicated PSU from Thermaltake $50us, then it'd be better because the PSU is rated for 250W and it's plenty for the GTS and also you'll have the full +12v rail for overclocking that 805 to at least 3.50ghz, if you can.
post #7 of 13
If I were you, I wouldn't be able to sleep!
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post #8 of 13
Get a Hiper 530 watt or something similar with that 8800 GTS.
    
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post #9 of 13
Thread Starter 
Quote:
Originally Posted by Bindusar View Post
While I am not an expert on these issues, I will say that if your system is stable now, don't worry about it and leave it as is. If you are experiencing instability the best thing would likely be to lower your OC'd settings to maintainable levels.

The 450W minimum that is recommended is just that, a recommendation and it is based on the understanding of all the other potential power demands of a pc like multiple drives, multiple fans, physics cards, sound cards, etc. If you have a rig full of stuff then the 450W may prove to be a necessity. On the flip side, there have been members including myself that have had successful, stable OC's on PSU's that should have never been able to deal with the demands we put on them.
Yeah the only thing I have running on my PSU is the processor, 1 optical drive, one small 40 gig HD and one 250 gig HD.

Thanks guys. I'm really impatient to wait for a new PSU because I can't wait to get the card in and start gaming, so i'll just tweak it 'till I get it right for the PSU.
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post #10 of 13
Well Depends heavily on your Rig. However take into consideration that your G-card wont be the only thing to utilize that PSU...You also have the rest of your RIG to Accomodate.

I would perhaps think about a PSU upgrade before hand be fore running the card matey.

450WATT is the Min...However i would reccomend 550 to be safe.

That or you can get a Dedicated GPU PSU for that card like me
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