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Underpowered Card? Please Help!


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3 replies to this topic

#1 Auroron

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Posted 04 July 2008 - 12:56 PM

So, I have a GeForce 9800GTX 512MB, and I have gotten some problems when I have been playing.
After and hour or so of gaming I get these flickering squares jumping around and my sound usually dissapears. So I quit the game and sometimes I get small red pixels and black lines, and sometimes my computer crash to a blue screen and it gathers information before it restarts. (This screen: http://thevistaforums.com/uploads/monthly_...1170708158.jpg)
And yeah, I have Vista SP1.
I have been bothered by Nvlddmkm.sys, but recently I haven't seen anything of it.

I have a, as sated earlier, a Geforce 9800GTX 512MB, with a 550W PSU. Is this whats causing the problems? I have heard that the 9800 needs at least 650-700W. I don't want to spend 105 euro on a new PSU if I don't need it.
SO, do I need a new PSU, if not, what is causing the problem? Answer fast. Good answers will be rewarded with cookies!

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#2 cornzey

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Posted 04 July 2008 - 01:11 PM

I don't think the PSU is the problem.

MESH Computers sell a PC with the 9800GTX 512mb and that comes with a 550w PSU.

I wouldn't have thought they would install a PSU which isn't powerful enough.

What CPU are you using?

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#3 Auroron

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Posted 04 July 2008 - 01:26 PM

I don't think the PSU is the problem.

MESH Computers sell a PC with the 9800GTX 512mb and that comes with a 550w PSU.

I wouldn't have thought they would install a PSU which isn't powerful enough.

What CPU are you using?

I only changed the graphic card before buying my system, and it clearly said "For 8800 cards, at least 550W is needed", but I changed 8800 to 9800. But yeah. I have heard that it's enough power and that it is not enough, so i'm totally clueless on what to do.
I have a Intel Core 2 Duo E6550 2.33GHz 1333Mhz

#4 Sneakycyber

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Posted 06 July 2008 - 06:06 PM

You listed a 550 Watt power supply. More importantly we need to know the amperage ratings for the 12v rails. List the make and model number of the unit installed in your computer. This can be found on the sticker located on the power supply. The inside of the computer has many electrical components that may shock you. Be sure to unplug the power supply from the wall outlet before opening the case. Also be sure to properly ground your self to the computer case to prevent any static discharge that may damage the components inside the case.
Chad Mockensturm 
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Certified CompTia Network +, A +




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