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Question About PCI-E Connectors

post #1 of 8
Thread Starter 
So I just got a new video card, and it has two 8-pin PCI-E connectors. Problem is that my PSU only has 1 x 6-Pin, 1 x 6+2-Pin. The picture on Newegg of the video card had one 6 and one 8 so I wasn't just being an idiot. Right now I'm using a molex to 8-pin, but it looks bad and I'm not even sure if it's safe.

My question is, could I get one of these and use it instead of my 6-pin. Would it be safe? Thank you for any help.
post #2 of 8
Well you have an OCZ power supply - have you checked for compatibility between the graphics modular port on your PSU and the pinout of this Siverstone cable? If it's different... your graphics card could blow up.

TBH, a molex to 8-pin adapter is perfectly safe. Assuming the graphics supply rail (may just be one large rail in the PSU) can handle the current draw of your graphics card and system as a whole, it will be fine.

If aesthetics are the only issue then we can begin to look at some other solutions.
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post #3 of 8
It is most likely not compatible with your OCZ PSU. that cable is meant for silverstone PSUs.
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post #4 of 8
Oh no another OCZ ModXStream Pro

Warning: Spoiler! (Click to show)
Build Quality

Externally the OCZ 700W ModXStream Pro is a fairly subdued semi-modular design that looks good. The unit has a nice finish, well sleeved cables, good quality modular cables, and a large overhead fan. However, once we open the unit we find that OCZ 700W ModXStream Pro looks very much like a cheap group regulated unit. This is further compounded by the fact that the unit has some questionable component selections in the mystery "Rec" capacitors. Good capacitors only add slightly to the total cost of a unit so why even something along the lines of Samxon or at the very least Teapo was excluded from this build is bewildering. Further, the unit only features a 3 year warranty and with questionable capacitors this is hardly reassuring. Also related here is the unit’s "documentation." The documentation that came with the unit is simply a waste of time. This fact is punctuated by the power distribution table at the back of the manual was never actually finished by whomever was annotating it. The only upside to all of this is most of the information about the unit is printed on the packaging, but still sans a correct power distribution table as these are genuinely useful. They are especially useful when units do not follow the ATX12v specification or EPS specification for 12v power distribution such as this unit.

http://www.hardocp.com/article/2008/11/12/ocz_700w_modxstream_pro_power_supply/#.UdybS210kYk

And no you cant use that cable so your best option is a new PSU
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post #5 of 8
Thread Starter 
Quote:
Originally Posted by seraph84 View Post

Well you have an OCZ power supply - have you checked for compatibility between the graphics modular port on your PSU and the pinout of this Siverstone cable? If it's different... your graphics card could blow up.

TBH, a molex to 8-pin adapter is perfectly safe. Assuming the graphics supply rail (may just be one large rail in the PSU) can handle the current draw of your graphics card and system as a whole, it will be fine.

If aesthetics are the only issue then we can begin to look at some other solutions.

That's the thing, it's 2 rails. If it was single I know it wouldn't be an issue, and maybe it still isn't, but I don't know. I haven't checked for compatibility but they do say for Silverstone PSU's only. The plug looks exactly the same though. If there is any chance I can fry anything though, I can't take it. God only knows how I swung this rig, and I can't eff it up. Thanks.
post #6 of 8
yeah no probs mate. the thing i'd be careful about is that just because the same connector is used (and every modular power supply uses some arrangement of molex connectors) it doesn't mean that the pinout of the connector is the same. every manufacturer could do it slightly differently and have their own cable configuration to do appropriate pin translation, splitting if it's a 6-pin to 8-pin cable, etc etc.

without checking data sheets and everything i'd be pretty scared because you wouldn't want to pump a GND and +12V in the wrong way... that may not end well!
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post #7 of 8
Thread Starter 
Yeah I don't think I'll risk it. Not worth it if anything happened. It does seem to work fine right now so I'll probably sit tight. I do have $25 at Newegg though so maybe I'll just get a new PSU. I'd like to get something anyway with 4 PCI-E in case I want to crossfire down the road.

Thanks for the help guys.
post #8 of 8
Quote:
Originally Posted by spizzlo View Post

Yeah I don't think I'll risk it. Not worth it if anything happened. It does seem to work fine right now so I'll probably sit tight. I do have $25 at Newegg though so maybe I'll just get a new PSU. I'd like to get something anyway with 4 PCI-E in case I want to crossfire down the road.

Thanks for the help guys.

Rosewill Capstone is one option
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Windows 7 64 Bit Asus PG279Q Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
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