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PSU and HD5850 questionFollow

#1 Aug 26 2010 at 1:19 PM Rating: Decent
71 posts
Will this power supply work with my new HD5850? I wanted to make sure that I had the correct power connectors for this to work, if not I'll need to order some. Thanks!


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#2 Aug 26 2010 at 1:24 PM Rating: Decent
423 posts


The PSU looks fine but there's a lot more then just video card that depends on the PSU. Not to mention it's always nice to have breathing room.


Yes it will have the right connectors. If not they are always included with the card if not.

Edited, Aug 26th 2010 1:26pm by boriss
#3 Aug 26 2010 at 1:24 PM Rating: Good
1,457 posts
I wouldn't buy a gateway PSU. It's generally accepted that Antec and Corsair are the most reliable and stable, but I've read good reviews on thermaltake too. I bought a coolermaster and it's running just fine. A bit louder than the others listed though. Every PSU I've had from the manfufacturer (dell, lenovo, etc.) was crap.

Try searching for a review of the model on google or ask in tom's hardware. You'll get a much more accurate response there.

Edited, Aug 26th 2010 12:25pm by GuardianFaith
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#4 Aug 26 2010 at 1:29 PM Rating: Decent
71 posts
This PSU is my current one that I've had for the past 3 years. My concern is, that I don't have the correct power cables to connect the card with. It says on some of the Newegg reviews that I will need both 6 pin AND 8 pin connectors. I don't believe I have any 8 pins with this current psu. Am I correct on this? Thanks for the replies.
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#5 Aug 26 2010 at 1:32 PM Rating: Decent
771 posts
I have a Sigma PSU I've had for about a year and a half, works great. Only problem I had was the first one I got was DOA, but I'm told this is common with all PSUs.
#6 Aug 26 2010 at 1:57 PM Rating: Excellent
1,439 posts
I have exact same GPU and this PSU:

I have found no problems with it. My system is running W7(64), 1 optical, 1 HD, 2 surlpus 120mm fans(sorry couldnt resist!), 1 CPU fan, mobo and led's etc. Not had any problems. One bit of advice is, if you are thinking of ever X-Fire(SLI) your GPU then check to see how many 6 pin power inputs you get. Mine had 2 but both are used by 5850, so in theory I would need 4 - i think - .

The 5850 is famous for its low power consumption though so I'm sure you would be fine depending on what other systems you are running along side it.
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#7 Aug 26 2010 at 2:26 PM Rating: Good
749 posts
I prefer this one myself

Way overkill for you, but one of the most rock stable PSUs I've ever owned. Even comes with a leather carrying case for unused cables :)

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#8 Aug 26 2010 at 8:41 PM Rating: Decent
71 posts
Well, I installed my new Asus HD5850 and found that my new card has 2 power slots. 1 that is a 6pin. 1 that is an 8 pin. Now, my PSU has only 6 pin connectors. Right now I am running the GPU with 2 6 pins in there and I'm noticing that when I play Runes of Magic or the FF14 benchmark, I am getting some pretty good lag. I'm guessing it's because I don't have the full power running into my GPU that I need.

Will this solve my problem? :

Or will I need to get a new PSU with those correct connectors?
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#9 Aug 27 2010 at 12:58 AM Rating: Decent
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You don't need a ridiculously huge PSU for a 5850. If you have a relatively normal PC ( i5/i7 8 gigs, air cooler, single HD, DVD/blu-ray, 5 or 6 USB devices, 2-3 1500 rpm 120mm case fans) then a 550 will do just fine *IF* it's not cheap and can actually supply 550. Such a PC will pull around 350 watts (including the 5850) and as long as the PSU is actually capable of supplying 550 watts during normal operation you won't have any problems.

But a lot of PSUs will say "600 watts" or whatever and what they really mean is that 600 watts is the most you can pull out of it before it overheats and (hopefully) shuts down. The real max "safe" load is actually lower than that on these cheap PSUs.

It does not pay to skimp on your PSU, you don't necessarily have to get a huge PSU, but you shouldn't get a cheap one either.

I use Antec PSU's (Antec is on Intel's recommended PSU lists for their motherboards), someone else can probably suggest other good brands to look at.

I've been using this PSU on my i7 860 with a 5850 with no problems at all.

Edited, Aug 27th 2010 4:05am by Lobivopis
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