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6-Pin PCIe to 8-Pin PCIe Adapters

post #1 of 9
Thread Starter 
I can's believe that in one year, the 6pin PCIe power connectors have become almost obsolete.

But there seems to be several Adapters that claim to solve this problem. Example: http://www.frozencpu.com/products/60...27&id=iZxtEYyZ

But will this give the required OOMPH, that the new cards need (given you have a decient PSU) or is it overloading the connector and not suppilying enough juice?
    
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post #2 of 9
If you're talking about the HD 2900XT, the card will actually still run with just dual 6 pin connectors. You can't use overdrive, though.
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post #3 of 9
Quote:
Originally Posted by SyncMaster753 View Post
I can's believe that in one year, the 6pin PCIe power connectors have become almost obsolete.

But there seems to be several Adapters that claim to solve this problem. Example: http://www.frozencpu.com/products/60...27&id=iZxtEYyZ

But will this give the required OOMPH, that the new cards need (given you have a decient PSU) or is it overloading the connector and not suppilying enough juice?
It's fine... the reasoning for the 8-pins it to reduce voltage drop and dangers from wire resistence.
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post #4 of 9
If I recall the pinout diagram, the additional pins are two ground wires. I don't think the adapters will be unsafe or will give a performance hit because they still carry the same current through. The addition of two ground wires is in all honesty a gimmick because the three 12v wires can only carry so much current.
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post #5 of 9
Thread Starter 
I'm finalizing my new AM2 CF build and am still undecided for a psu, that's why i was worried about this issue and futureproofing my rig. and none of my three tentative choices have 8-pins for PCIe.
    
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post #6 of 9
Quote:
Originally Posted by Burn View Post
If I recall the pinout diagram, the additional pins are two ground wires. I don't think the adapters will be unsafe or will give a performance hit because they still carry the same current through. The addition of two ground wires is in all honesty a gimmick because the three 12v wires can only carry so much current.
You can see in the picture that it's 1 extra ground and 1 extra 12v
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post #7 of 9
Quote:
Originally Posted by Fishie36 View Post
You can see in the picture that it's 1 extra ground and 1 extra 12v
Yup, it probably allows the plug to offically carry 100w now. However, three wires would be able to do this as well but with more voltage drop.
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post #8 of 9
Quote:
Originally Posted by Fishie36 View Post
You can see in the picture that it's 1 extra ground and 1 extra 12v
I stand corrected
http://www.overclock.net/other-hardw...ghlight=pinout
4 12v lines, 3 grounds.
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post #9 of 9
Thread Starter 
Well considering that Nvidia and ATI said that they'd lower power consumption after this generation of GPU's i think i'll skip out on $200 psu's that have the 8-pin connectors and go for either:
A: Corsair 620HX
B: OCZ GameXstream 700w
C: Thermaltake Toughpower 750w

Probably option c because i havn't heard anything bad about it,
A has a noticeable 5v drop under intense loads and is only 620w (but then again , when is your 5v going to be under intense loads)
B has that "ripple issue" on the 12v rails when it's pushed to the limits
C a bit pricier but helps me sleep at night.
    
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