PSU and GPU Compatibility?? Help!

teeties · Aug 6, 2014

Hello,

I recently bought a EVGA GTX 770 Superclocked 2.0 GPU and got a EVGA SuperNOVA 750 G2 220-G2-0750-XR 750W ATX12V. Now the GPU comes with a 6 pin pci e power adapter and a 8 pin pci e power adapter. There is no slots for a pci connector on the power supply. I was wondering if anyone knows a great PSU that will be more than great enough to power my GPU.

Thank you!

dovah-chan · Aug 6, 2014

Do you have all the cables for your PSU? Normally I ignore any adapters that come with the GPU as most decent power supplies always have the cables necessary.

Suztera · Aug 6, 2014

I not sure what you doing but the EVGA Super NOVA 750 G2 should have all the required PCIE cables needed to power a gTX 770. You do not need to use the adapters given with the gpu in the accessories box of the TX 770.

teeties · Aug 6, 2014

My PSU does not have any slots to fit pci power cables.

dovah-chan · Aug 6, 2014

The slots on the PSU are meant for the other ends of the PCI-E cables that come supplied with it. It should be labled appropriately as so.

TopLuca · Aug 6, 2014

Your PSU will have all the required cables attached to it , you needn't worry

dovah-chan · Aug 6, 2014

Here are the slots that do fit the PCI-E cables that come with the power supply.

Suztera · Aug 6, 2014

Yes you do. You know these cables you got with your power supply. One end should have a 6+2 pin PCIE power connector and the other end is for plugging it into the psu, in the VGA slot. The 6+2 pin PCIE cable is your power cable to the GTX 770.

6+2 pin PCIE connector looks like this:

Source:http://www.playtool.com/pages/psuconnectors/connectors.html

dovah-chan · Aug 6, 2014

The only reason you wouldn't have the proper cables is if you lost them or you bought your PSU used and it didn't come with all the required cables

teeties · Aug 6, 2014

I have one cable that has a 8 pin connector on one end and the other end splits into to two connectors that are 6 pins but it is a very short cable.

Suztera · Aug 6, 2014

teeties :

I'm not sure what cable you talking about. There should be some white letters on the connectors. What does that say?
Or take a picture and put it here.

teeties · Aug 6, 2014

The only ones that are labeled for me are the VGA, MOBO, CPU, AND PERIF cables.

Suztera · Aug 6, 2014

teeties :

Use the VGA labelled cables for the GTX 770. One end has a 6 pin and two extra pins hangin off. It can be combined to be an 8 pin PCIE power cable. That goes into the gpu. The other end goes to the power supply into one of the VGA labelled slot.

teeties · Aug 6, 2014

Yes I do have a cable that is labeled VGA on both ends like the one you described. 6+2 pin that i plugged into the GPU, and the 8 pin that connects to the psu? This should work? Idk how it is a pci cable when it is labeled vga on both ends? why not label it pci??

Suztera · Aug 6, 2014

It's labeled VGA since you use it to connect to the graphic card. VGA can still stand for a graphic card.
Yes the 8 pin connects to the psu.

teeties · Aug 6, 2014

That cable I just plugged in gave no power to my GPU.

Suztera · Aug 6, 2014

teeties :

Before you plug anything in, make sure the power is off completely for the power supply.
You need to plug in two VGA cables to the GTX 770. All the pcie power slot must be connected.

teeties · Aug 6, 2014

My power is always off when i am working on the inside of my computer. I have connected a 6 + 2 pin connector to my GPU then routed the 8 pin side to the VGA connector of the PSU. Took another 6 + 2 pin but only plugged in the 6 pin part to my GPU and then routed the 8 pin to the VGA connector of the PSU. I even switch the spot I put the GPU in. Still no power. =(

Suztera · Aug 6, 2014

What is your rest of the build?
Follow this guide to check if you plugged in everything.
http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems

PSU and GPU Compatibility?? Help!

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