OK to use molex --> 8-pin power adapters?

[Ylurien]

I'm using a Seasonic 600HT (600W) power supply and it's only got 2 6-pin connectors. I'm thinking about getting one of the upcoming GTX295 cards (which requires a native 8-pin PEG) and I'd like to use the same PSU if possible, so would you guys recommend a molex to 8-pin adapter, or should I get a new PSU or...?

Thanks for any help.

Moving to the PSU forum

- AmberClad (Video Moderator)

 

[VERTIGGO]

you don't need more anything else, just make sure you've got an adapter that supplies black (ground) on the top row and yellow (12V) on the bottom row. Some 8 pin adapters are for motherboard power and have the pins reversed. Actually, on the video 8 pin, the two extras are both ground, so that's all you need... to add two ground wires.

 

[VirtualLarry]

Get an AthenaTech 6-pin PCI-E to dual 8-pin PCI-E splitters from NewEgg.

 

[Zap]

You may get the adaptors necessary when you purchase the card. For instance, BFG typically includes the necessary adaptors. The BFG GTX 280 comes with a two 6-pin to one 8-pin adaptor, and a two molex to one 6-pin adaptor. With your Seasonic's two 6-pin, you would have to use both adaptors.

 

[geno]

What's the purpose of the 8-pin connector then if a 6-pin feed is providing sufficient juice? Is there any disadvantage to using an adapter vs a true 8-pin setup?

 

[Zap]

Originally posted by: geno
What's the purpose of the 8-pin connector then if a 6-pin feed is providing sufficient juice?

6 pin is only rated for 75W. 8 pin is rated for 150W.

 

[geno]

Originally posted by: Zap

Originally posted by: geno
What's the purpose of the 8-pin connector then if a 6-pin feed is providing sufficient juice?

6 pin is only rated for 75W. 8 pin is rated for 150W.

So you risk underpowering the card if you don't have a 6 + 8 pin capable PSU? Or are you overpowering the 6-to-8 pin feed? Sorry, I suck when it comes to electricity.

 

[OCNewbie]

Originally posted by: Zap
The BFG GTX 280 comes with a two 6-pin to one 8-pin adaptor

Originally posted by: geno
What's the purpose of the 8-pin connector then if a 6-pin feed is providing sufficient juice? Is there any disadvantage to using an adapter vs a true 8-pin setup?

I think maybe you mis-read what he said? He said that you have to use TWO 6-pin connectors to power ONE 8-pin connector. Or maybe I misunderstand what you're asking =P