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PSU for Radeon HD 6870

Last response: in Graphics & Displays
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June 28, 2012 3:32:12 AM

So I just got my 6870 in the mail. I put it in the computer case and then realize that my PSU is not gonna work. I have a 500w Ark Technology PSU but there are no 6-pin connectors to go to the graphics card. It requires 2 6-pin connectors. Should I buy a whole new PSU? And if so, which one? Also, can I just buy an adapter to make the 4pin molex into a 6-pin connector? There are only 3 of the 4pin molex on my current PSU, so would I be ok getting 2 adapters and just power the Hard Drive with SATA and use the 1 free 4pin molex for the dvd drive? I'm only gonna have 1 hard drive and a DVD burner, nothing else special in the case. The motherboard is a Biostar H61MHB. Thanks for the help!

More about : psu radeon 6870

June 28, 2012 4:37:53 AM

yes you can use a 4pin molex to 6 pin
you dont need a new psu
i'm surprised your 6870 didnt come with adapters
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June 28, 2012 4:48:11 AM

Thanks for the reply. I would really love to keep my psu but I just don't see how it would work because there are only 3 of the 4 pin connectors on the psu. If I use two of them for the gpu, theres only one left. I still need to power the hard drive and dvd drive.
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June 28, 2012 5:12:15 AM

you said you had sata power connectors use those
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a b U Graphics card
June 28, 2012 5:12:28 AM

even if you have a 4pin molex to 6 pin the grphics card wont function correctly
because your PSU is very low quality
i suggest 500w seasonic or FSP or any other good brand
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June 28, 2012 5:14:12 AM

he doesnt have a lot of things connected to his psu
it will be fine unless he tries overclocking
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June 28, 2012 5:15:35 AM

Just buy the adapters and you should be fine.
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June 28, 2012 5:17:02 AM

coper210 said:
Just buy the adapters and you should be fine.

thats what i'm saying :) 
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June 28, 2012 5:24:24 AM

robertg231 said:
you said you had sata power connectors use those


Ok, wasn't sure if that would work or not. I'm kinda new at this so sorry if I say something stupid
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June 28, 2012 5:25:38 AM

robertg231 said:
he doesnt have a lot of things connected to his psu
it will be fine unless he tries overclocking


Don't plan on overclocking at all
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a b U Graphics card
June 28, 2012 5:32:28 AM

this power supply would probably reach its limit at a load of 250 W on the 12 V rail.
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June 28, 2012 6:58:41 AM

rbj8611 said:
Ok, wasn't sure if that would work or not. I'm kinda new at this so sorry if I say something stupid

it's ok
and it wasnt stupid
i started just like you asking a bunch of questions and i still do
also since you're not overclocking it will be fine
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!