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How much power does a 9800GTX require?

Last response: in Components
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May 12, 2008 1:32:17 AM

My current system:
GIGABYTE GA-965P-DS3
Intel Core 2 Duo E6400 Conroe
OCZ Platinum Revision 2 4GB (4 x 1GB) DDR2 800
NEC 16X DVD±R DVD Burner IDE
Raptor WD740ADFD 74GB 10000 RPM SATA
Seagate 160GB 7200 RPM IDE
Sound Blaster Audigy
BFG Tech GeForce 7950GT 512MB

Thermaltake TR2 W0070 430W ATX
http://thermaltakeusa.com/product/Power/TR2power/w006970/w006970.asp

This is my current system and runs very well. Can I upgrade to an EVGA GeForce 9800 GTX with this power supply? What happens if I try my new card and the system doesn't power up? Will it damage anything?

More about : power 9800gtx require

May 12, 2008 1:36:18 AM

I guess 18A on 12V rail isn't much.
May 12, 2008 1:43:01 AM

The 25 amps on the 12v rail is not enough to power my 9600GT card I just purchased. I have a Antec 550w True Power power supply. Now I need to find a PS that will supply at a minimum 26amps to run this card. I can browse the web but as soon as I try to run a game it crashes to a black screen, then comes up saying that nv4_disp driver failed to run or something like that....
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May 12, 2008 1:49:22 AM

Well I just found this image.


I think your PS will run your card at idle but at load it crashes. I assume since my PS is 430max wattage that if the video requires 230W which is over half it won't run this card.
May 12, 2008 4:21:05 AM

Luckyblur:
I would be getting a bigger PSU than that. Something around 500-600w quality will be enough, Cosair550,650,750 or Antec Trio range is nice PCP&P also make some good units.

Jambolias2 1:
That PSU should be enough to run that card (unless you have CPU overclocked and alot of other devices) my thoughts are there is something else wrong with your machine weather it be hardware or software. Make sure drivers are up to date... Does it crash in every game? Does it crash in windows?
June 3, 2008 8:50:59 AM

the 230W under load referred to in the picture indicates the systems total power draw from the mains, not the graphics card its self.
June 3, 2008 9:07:42 AM

In theory a 430watt supply would be enough to power your system with a 9800gtx...

However, your particular power supply does not provide enough power to the 12v rail to make this possible - thermaltake decided beef up the 5volt rail instead.

There's a thread stickied at the top of the forum dealing with power supplies, which also includes a link to a chart of which power supplies/manufacturers fall into which tier of quality.

I'd recommend something in the 600watt range so that you're also somewhat future proofed for later upgrades.
June 3, 2008 9:11:54 AM

Jambolias21 said:
The 25 amps on the 12v rail is not enough to power my 9600GT card I just purchased. I have a Antec 550w True Power power supply. Now I need to find a PS that will supply at a minimum 26amps to run this card. I can browse the web but as soon as I try to run a game it crashes to a black screen, then comes up saying that nv4_disp driver failed to run or something like that....


You have 30amps on your 12v rail - more than enough for a 9600gt (which is quite a low power card anyway). Sounds like something else is wrong...

Did you remember to plug in the PCI-E power connector on the back of the card?

If you did, it could easily be a corrupted driver file - or a corrupted windows install.

Worst case, you have a faulty card - have you tried testing it in another computer?
a b ) Power supply
June 3, 2008 5:03:50 PM

The 9800GTX consumes up to 109w at stock speed. That translates into 9.08 amps just for the video card under max load. More if overclocked.
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