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Old 04-11-2007, 11:42 AM   #1
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Exclamation Need new power supply

I have a EVGA 640mb 8800 GTS, and I only have a power supply with 400W. I know I need a faster one and my card is not running to its fullest as there are slowdowns sometimes and even little jitters in gameplay, even in games like Warcraft 3, which I expected to run perfectly on high settings. and on CSS, fps drops quite a bit into the 40-60 range with 2-4x AA or 4x Anistropic filtering.

please tell me what power supply specs I need to run the card to its full potential, hopefuly something around 100 Canadian dollars, or 70-90 american, if not cheaper. I heard 550W is more than enough, but please tell me about other specs like amps if I need to know.

Thanks a lot.
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Old 04-11-2007, 05:21 PM   #2
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Default Re: Need new power supply

400 watts should be plenty, depending on what other things you have that it is powering. Are you sure you have the 4 pin power connection hooked up to your video card?
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Old 04-11-2007, 05:28 PM   #3
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Default Re: Need new power supply

You need a MINIMUM of 400watts, so basically u want to go about 120w higher than this to be on the safe side, depending on what else u have in ur pc, and ur 12v rail requirements are 26A. Again depending on what else u have on ur pc.

Actually when i got the card in my rig, i had a psu with a crappy 12v rail, it crashed when the hoover was being used and the games were slower.
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Old 04-11-2007, 05:48 PM   #4
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Default Re: Need new power supply

For a value one that will work, check out this:
http://www.newegg.com/Product/Produc...82E16817182030
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Old 04-11-2007, 09:24 PM   #5
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Default Re: Need new power supply

Silverstone ST56ZF or Corsair HX620. Those two will power a 8800GTS with ease. The corsair is known to power 8800GTXs in SLI with an overclocked Conroe.
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Old 04-11-2007, 11:09 PM   #6
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Default Re: Need new power supply

I think I DO need a better supply, as I in Warcraft my game slows down when there's a bunch of units on screen, and in CS:S my fps drops down often to 40-60 on cs_office with 32 players. I'm expecting the card is supposed to do better, and the supply is blocking it from doing so.
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Old 04-11-2007, 11:18 PM   #7
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Default Re: Need new power supply

my video card doesnt even have a power cord to connect it to the mobo..wtf? i am running a geforce6200 can somebody please explain why?
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Old 04-11-2007, 11:41 PM   #8
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Default Re: Need new power supply

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my video card doesnt even have a power cord to connect it to the mobo..wtf? i am running a geforce6200 can somebody please explain why?
more energy efficient cards that don't consume as much power do not require a power cord which shouldn't be connected to the mobo but to the power supply.. the only 6 series card that needs this additional power is the 6800GS/GT, more energy efficient cards like the 7600GT don't require as much but as you get bigger with the 7800GTX/7950GT/8800GTX the power consumption becomes greater.
don't worry if your card doesn't have a power cord, you're doing a big favor to the evironment lol.

@ownage, i never knew corsair made psus until now, they look pretty solid too, very very nice reviews on the egg.
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Old 04-12-2007, 12:24 AM   #9
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Default Re: Need new power supply

http://www.newegg.com/Product/Produc...82E16817148023

that is the psu i have in my rig and its awesome, it powers my oc'ed 7600gt with no problem, i haven't been able to really test it out but it will run your 8800 and then some
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Old 04-12-2007, 12:39 AM   #10
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Default Re: Need new power supply

Ronco, for a 100 bucks powersupply, you can do a lot better than that. The 12V rails are very weak. And plus, only 1 year warranty? The Corsair is only a little bit more and it outperforms that by a long shot.
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Old 04-12-2007, 02:27 AM   #11
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Default Re: Need new power supply

is my graphics card good?
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Old 04-12-2007, 08:18 AM   #12
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Default Re: Need new power supply

Yeah its a nice card!! the best card out at the moment is the 8800GTX. Urs is a bit behind that but still a top end card! Wanna swap for mine? mines better ahem (i wudnt lie )
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Old 04-12-2007, 01:27 PM   #13
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Default Re: Need new power supply

Forget it, my GTS pawns all, besides its slightly more powerful big brother. So, what specs I need to for sure run top? 550W with 25 amps?
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Old 04-12-2007, 01:29 PM   #14
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Default Re: Need new power supply

Would this be a good choice for a buy:
http://www.tigerdirect.ca/applicatio...u=ULT31848%20K

OR

http://www.tigerdirect.ca/applicatio...967&CatId=1483
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Old 04-12-2007, 03:38 PM   #15
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Default Re: Need new power supply

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Originally Posted by ownage View Post
Ronco, for a 100 bucks powersupply, you can do a lot better than that. The 12V rails are very weak. And plus, only 1 year warranty? The Corsair is only a little bit more and it outperforms that by a long shot.
well its in my computer now and powers everything fine.
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Old 04-12-2007, 04:00 PM   #16
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Default Re: Need new power supply

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Originally Posted by Anubis1980 View Post
You need a MINIMUM of 400watts, so basically u want to go about 120w higher than this to be on the safe side, depending on what else u have in ur pc, and ur 12v rail requirements are 26A. Again depending on what else u have on ur pc.

Actually when i got the card in my rig, i had a psu with a crappy 12v rail, it crashed when the hoover was being used and the games were slower.
No your wrong dude, the company asks a minimum 400W (assuming a loaded system)

Oh and when you plugged your card did you used the power cord supplied? That is used when yoour PSU doesnt have a 6pin connector so you convert it; if you have one 6pin PCI-E connecter plug it directly to the card maybe thats the problem.
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Old 04-12-2007, 05:26 PM   #17
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Default Re: Need new power supply

Its always best to go higher than they specify for future proof systems. Having had Nvida cards all my life i know what to expect And yes my card was installed correctly, it was all to do with the crappy PSU i had, my new one powers it fine, without a prob overclocked as well. Hence why its best to be careful when PSU's are concerned, crappy under powered ones dont supply enough power, also cheap PSU's often say 400w but in reality they are like 300w, 400w is the MAX peak power, this is why its best to get a bigger psu to avoide this problem.
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Old 04-12-2007, 06:29 PM   #18
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Default Re: Need new power supply

I am asking the creator of this thread, yeah you cant be so sure. Remeber amps are more important than MAX watt power.
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Old 04-12-2007, 06:44 PM   #19
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Default Re: Need new power supply

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I am asking the creator of this thread, yeah you cant be so sure. Remeber amps are more important than MAX watt power.
Lol sorry thought u were asking me
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Old 04-12-2007, 07:13 PM   #20
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Default Re: Need new power supply

Yes, I did connect the cable protruding from the pcu directly to the socket in my card.
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