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HD 7870 Power splitter question

Last response: in Graphics & Displays
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October 20, 2012 10:22:06 PM

Here's the deal guys. I want to buy this HD 7870, amazingly priced at $210:

Graphics card:http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The problem is the power supply unit i was going to buy has only one 6-pin PCI-E power connector, whereas this card requires two.

PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

So I was browsing around for a solution, and I found this:

http://www.amazon.com/StarTech-com-PCIEXSPLIT6-6-Inch-E...

Basically it splits one 6-pin connector into two.

So now I have a simple question: will it work? Or will I end up blowing lots of hardware up and ruining a perfectly good graphics card? NOTE: I want to overclock by at least 5-10%
a b U Graphics card
October 20, 2012 10:31:43 PM

I think you might need a 500 watt PSU. Most graphics cards come with molex to 6 pin adapters with the card in the box but i would consider a different powers supply.
What are the rest of your system components?
October 20, 2012 10:37:24 PM

jay2577 said:
I think you might need a 500 watt PSU. Most graphics cards come with molex to 6 pin adapters with the card in the box but i would consider a different powers supply.
What are the rest of your system components?


i5 3750
hyper 212+ CPU cooler
asrock pro4
agility 4 64 GB
seagate barracuda 64 GB
cooler master storm enforcer
LG dvd/cd drive

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October 20, 2012 10:55:53 PM

amuffin said:
Here's a PSU that kicks that one's A$$.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

It's even cheaper.....


Don't think I'm shooting you down, but that one sucks. It only gets about 400 Watts on the 12 volt rail, and was apparently overrated as psu (It's true performance lies somehwere around the 420 range). One of Corsair's less reliable units.
a b U Graphics card
October 20, 2012 10:56:56 PM

I have an antec pro gamer 520 watt and it's awesome.It's a rebranded seasonic. I would go with a good 500 watt if i were you at least. An antec would be my recommendation but it's your decision. It will be a kick ass system you have with that set up
October 20, 2012 11:01:15 PM

So does anyone know about the cablesplitter thing?
a b U Graphics card
October 20, 2012 11:07:01 PM

The cable splitter is fine as long as you have a psu which is powerful enough(amps are more important than watts) but like i said in my previous post the card will come with it's own adapter converting 2 molex to a 6 pin so you shouldn't need the cable splitter.
a c 109 U Graphics card
October 20, 2012 11:16:55 PM

X3noc1de said:
Don't think I'm shooting you down, but that one sucks. It only gets about 400 Watts on the 12 volt rail, and was apparently overrated as psu (It's true performance lies somehwere around the 420 range). One of Corsair's less reliable units.


Still better than the CM POS.

Your system isn't going to draw anywhere near 400Watts regardless.
October 20, 2012 11:25:28 PM

amuffin said:
Still better than the CM POS.

Your system isn't going to draw anywhere near 400Watts regardless.


Even if I overclock my processor AND gpu?
a c 109 U Graphics card
October 20, 2012 11:27:28 PM

Yes.

The 7870 is very efficient, so is the 3570K in terms of power draw.
October 20, 2012 11:34:18 PM

amuffin said:
Yes.

The 7870 is very efficient, so is the 3570K in terms of power draw.
http://www.guru3d.com/miraserver/images/2012/r7870-msi/Untitled-1.png


Thank you, I think i'll go with this one. But seeing as you ARE a senior user, what is your take on the whole power splitter thing? I've gathered that it's unneccesary, but for future reference?

btw, the CX500 actually costs more than the GX 450, you overlooked the promo code. (43.99 vs. 26.99)

Also, would this CX 430 be enough (http://www.newegg.com/Product/Product.aspx?Item=N82E168...)?
October 21, 2012 12:11:05 AM

amuffin said:
The CX430V2 only has one 6+2 Pin connector, I own one myself. :) 

The less connections, the better.

I wouldn't even buy the GX series......

Here's another one that's $35.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...


That's an amazing deal, but it says it comes without a power cord. What does that mean? If I get that answered, I'll buy this one, it's an amazing deal. Thanks for all the help btw
a b U Graphics card
October 21, 2012 12:27:00 AM

I think people only worry so much about the quality of the PSU's is that if you've ever had one fail(like me) they can break other components in the system when they blow. I am 36 years old and only had this happen to me once in my many system builds but it destroyed my hard drive and graphics card. I learned to never cut costs on the power supply again. Maybe read some reviews before you buy
a b U Graphics card
October 21, 2012 12:28:11 AM

The power cord is what connects the power supply to the mains electrical socket. If you already have a cord just use that as they are all the same
a b U Graphics card
October 21, 2012 12:34:42 AM

Oh and that antec is a good PSU. I would get it:) 
October 21, 2012 1:31:21 AM

jay2577 said:
The power cord is what connects the power supply to the mains electrical socket. If you already have a cord just use that as they are all the same


What if I don't have an extra one?
Anonymous
a c 117 U Graphics card
October 21, 2012 1:58:54 AM

X3noc1de said:
What if I don't have an extra one?

if your swapping out PSUs then re-use that one; why would that be a problem?

a lot of PSUs do not supply a power cord; something about being "green"


a b U Graphics card
October 21, 2012 2:02:03 AM

Always get a high quality PSU. It is the one piece of hardware you can use across many upgrades and never regret.
a b U Graphics card
October 21, 2012 2:04:55 AM

If you have a single rail PSU, then splitting is fine. If you have a two rail PSU, then you'd want to use a 4pin molex to 6 pin adapter so you can split up your AMP load.

a c 109 U Graphics card
October 21, 2012 5:44:45 AM

X3noc1de said:
Here's the deal guys. I want to buy this HD 7870, amazingly priced at $210:

Graphics card:http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The problem is the power supply unit i was going to buy has only one 6-pin PCI-E power connector, whereas this card requires two.

PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

So I was browsing around for a solution, and I found this:

http://www.amazon.com/StarTech-com-PCIEXSPLIT6-6-Inch-E...

Basically it splits one 6-pin connector into two.

So now I have a simple question: will it work? Or will I end up blowing lots of hardware up and ruining a perfectly good graphics card? NOTE: I want to overclock by at least 5-10%


Hi - you def don't want to get the Coolermaster PSU, others will prob advise you on Star Tech.

Tom
!