MY GPU NEEDS A 6-pin power connector but my PSU doesn't have that kind of connector

runningrock · Oct 11, 2015

Hi! so i have a gpu (MSI GTX 960 Tiger) that needs a 6-pin power connector. my PSU is 650W with lots of MOLEX and i am not quite sure where to plug a molex to 6 pin connector that i bought. thanks a lot! have a great day!

Someone Somewhere · Oct 11, 2015

What brand and model is the PSU?

Insufficient connectors is often a sign that the PSU's wattage is faked, and it can't deliver rated power. I'd probably suggest replacing it.

JackNaylorPE · Oct 11, 2015

Recommend that you buy a PSU with the proper connectors. Kludges like adapters are flakey and oft hazardous to the health of your PC components.

SkyBill40 · Oct 12, 2015

Your card should have come with an adapter to go from 4 pin Molex to 6 pin PCI-E. That is, of course, unless you bought your card second hand.

A few pics of the connections on the PSU would be helpful. If you've already got an adapter, what's the problem?

runningrock · Oct 15, 2015

i don't see the card yet...it's brand new my cousin bought it for me. my pc is at home and i'm on a trip but with what i remember, my PSU has 2 four pin connector, 1 is connected to the MOBO. a 21 pin also connected to the MOBO. 2 connectors for HDD plus 4 molex? i am not sure. i use 1 molex for the case fan. I will post some pictures of my PSU when i get home..thanks for your feedback,,

I do not consider upgrading my PSU yet because it's not i my budget. thanks again!

JackNaylorPE · Oct 16, 2015

I would advise skipping an adapter and buying a properly configured PSU. Using a properly designed and configured PSU, you can be assured of properly balancing the loads across the multiple rails* on the PSU. Using molex to PCI-E adapters, you are no longer assured that you will not put too much load on any of the individual rails.

* there are single rail PSUs in which this issue would not matter but 1) they are rare and 2) if you had one, you'd probably know about it.

The 4 pin is an EPS connector that provides power to the CPU. The 20/24 pin cable is the main power connector to the MoBo. SATA cables of for storage devices primarily and molex are for legacy usage.

http://www.jonnyguru.com/forums/showthread.php?t=3990

An FSP Epsilon 700W has ample power for any SLI rig out there, right? But the unit only comes with two PCIe connectors. The two PCIe connectors on the unit are each on their own +12V rail. Each of these rails provides up to 18A which is almost three times more than what a 6-pin PCIe power connector is designed to deliver! What if I want to run a pair of GTX cards? It would have been ideal if they could put two PCIe connectors on each of those rails instead of just one, but instead those with GTX SLI are forced to use Molex to PCIe adapters. Here comes the problem: When you use the Molex to PCIe adapters, you have now added the load from graphics cards onto the rail that's also supplying power to all of your hard drives, optical drives, fans, CCFL's, water pump.. you name it. Suddenly, during a game, the PC shuts down completely.

gondo · Oct 26, 2015

I don't think the video cards I've purchased recently come with adapters. I suggest the new PSU.

Dark Lord of Tech · Oct 26, 2015

You don't want to power the card with an adapter , A 650W without a PCIE would be seriously low quality , good ones usually have 4.

SkyBill40 · Oct 27, 2015

I'd rather he not use an adapter but if it was a short term (REALLY short, mind you) solution until he secures a proper unit, I don't see it being a huge issue.

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MY GPU NEEDS A 6-pin power connector but my PSU doesn't have that kind of connector

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