HD2900XT PSU Help

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Tom's Hardware UK and Ireland Forums » CPU & Components » Power Supplies, PC Cases & Case Mods » HD2900XT PSU Help

HD2900XT PSU Help

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Author	Thread : HD2900XT PSU Help

domanskip

Profile: stranger

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08-06-2008 at 09:32:50 PM

Hi all. Need some advice. I'm upgrading my GPU from an NVidia 7900 GT to an ATI HD2900XT and have some worries about my PSU. I'm currently running a 400W PSU with no 6bit connectors and I know the new GPU requires at least 2 6bit connectors and ideally one 6bit and one 8bit.

Now I'm wondering if the card will be able to run at all on a 400w PSU if I simply use 4bit to 6bit adapters. If so, would you recommend it? My other option is to upgrade my PSU to something like a 600W that comes with the 6bit connectors already and won't battle with the load. I hear that the GPU is very power-hungry (ATI recommends 550W) but usually the companies exaggerate these figures to cover themselves. Anyway, what plan of action would you recommend? And if the PSU swap is necessary could you please advise on a cost-effective PSU that will cover all my bases.

Thanks in advance!

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spuddyt

"Hello" lied the politician
Profile: Faithful Poster

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08-06-2008 at 09:52:58 PM

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I do hope you aren't buying one of those..... but anyway I sincerely doubt that your power supply can handle it

bwdsmart

Profile: journeyman

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08-06-2008 at 09:52:59 PM

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you will end up having to buy a new power supply. I know newegg has an ocz 600w for 35$ or so after MIR. Do youself a favor and dont buy the 2900xt, the 4870 has double the performance for less $. Or even a 4850 would be a major upgrade from a 7900gt.

aevm

Do not eat the styrofoam
Profile: Forum Fixture

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08-06-2008 at 09:53:57 PM

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If you're in the USA, get a 650TX ($90) and a HD 4850 ($155) from newegg. Don't buy the 2900XT.

Ripper02

Profile: stranger

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08-06-2008 at 10:00:16 PM

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I agree with the other guys. I have a hd2900pro. Its good .....but slower than the other 2. Definitely go for the 4870 (top end) or 4850. Both will kick the 2900xt in the nads. I myself am upgrading to the 4870.

domanskip

Profile: stranger

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08-06-2008 at 10:01:13 PM

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Thanks for the quick reply. I'm not buying it, a friend ended up with a faulty one, bought a new card, and then they sent him the replacement so he had no use for it. It is at least an upgrade from the 7900GT even if it's not that great. I'm getting it free, so I'm not complaining.

I'll buy one of the PSU's you guys suggested. Thanks again for your help!

spuddyt

"Hello" lied the politician
Profile: Faithful Poster

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08-06-2008 at 11:34:35 PM

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ha, buy some earplugs while your at it, those things are LOUD!!!!

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Slobogob

Profile: nimble knuckle

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08-07-2008 at 01:59:58 AM

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spuddyt wrote :

ha, buy some earplugs while your at it, those things are LOUD!!!!

They sound like a vacuum cleaner, indeed. I rearranged my case cooling and ever since it became totally silent. It's a nice card.

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