Gigabyte GTX 970 G1 power cables ? NOOB HERE!

[E-AlRomaithi]

Hello,

I have my built nearly finished but I am stuck with powering my GPUs, I have Gigabyte GTX 970 G1 in SLI and I really don't know how to put the power cables from my PSU to my GPUs. My PSU is EVGA 1000w G2 PSU.

Pictures:

Am I good to go ? (power up the system ?)

My PSU only included 6+2 VGA power cords but i found in my GPU box a cable with 8 pins on one side and 2 molex pins on the other side.

Waiting for an answer ..

 

[chenw]

You only have 1 PCI-E power socket plugged in on both GPU's?

Also, are the PCI-E cables you are using double ended on one side?

 

[coozie7]

Your power supply is fully modular.
It comes with six PCI-E connector leads.
You need to plug in four PCI-E leads into the power supply then plug two leads into each graphics card.
For the 6 pin plugs, push the little 2 pin part aside and insert the plug into a 6 pin socket. For the 8 pin plugs hold the little two pin part and the 6 pin part together then insert the assembly into the 8 pin socket.
Note: getting the 8 pin plug into its socket can be a little fiddly because the two pin part has to be exactly aligned.

 

[E-AlRomaithi]

You only have 1 PCI-E power socket plugged in on both GPU's?

Also, are the PCI-E cables you are using double ended on one side?

I used separate cables, in other words, I used two cables.
one side attached to the PSU where it says VGA 1 and VGA 2 and the other side (6+2 pin) is connected to the 6 pin connector on the GPUs

 

[chenw]

You should connect it the other way round: the end you have connected to the GPU now should be connected to the PSU, and the VGA1 and 2 that is connected to your PSU should be connected to the same GPU.

 

[E-AlRomaithi]

Your power supply is fully modular.
It comes with six PCI-E connector leads.
You need to plug in four PCI-E leads into the power supply then plug two leads into each graphics card.
For the 6 pin plugs, push the little 2 pin part aside and insert the plug into a 6 pin socket. For the 8 pin plugs hold the little two pin part and the 6 pin part together then insert the assembly into the 8 pin socket.
Note: getting the 8 pin plug into its socket can be a little fiddly because the two pin part has to be exactly aligned.

"You need to plug in four PCI-E leads into the power supply then plug two leads into each graphics card." I thought about this but i was afraid messing up and damage mu GPUs when powering up.

Are you sure nothing bad will happen ?

 

[E-AlRomaithi]

You should connect it the other way round: the end you have connected to the GPU now should be connected to the PSU, and the VGA1 and 2 that is connected to your PSU should be connected to the same GPU.

what about the 6 pin connector on the GPUs ?

 

[chenw]

the VGA pins (labeled VGA 1 and 2) should have a 6 pin and a 2 pin that could be separated right? Use the main 6 pin part to plug into the GPU, and leave the 2 pin part unplugged in.

 

[chenw]

Ah crap...

Sorry, unplug the double ended PCI cable! Your power supply should have come with 6 VGA cables that is single ended on both sides! Use one cable for each socket your GPU's have

 

[E-AlRomaithi]

Ah crap...

Sorry, unplug the double ended PCI cable! Your power supply should have come with 6 VGA cables that is single ended on both sides! Use one cable for each socket your GPU's have

Thnx I have managed to do that and i have powered my PC. At first the whole cpu powered on like for 3-4 seconds then turned off with no display on the screen then it turns on again and then turn off again like for 3 times.
the 4th time the cpu didn't turned off and the display started to work and requesting me to connect a keyboard
is that normal ? i mean the cpu turning on and off several times at the first boot ?
I am afraid that i messed up with something !

 

[chenw]

try unplugging one GPU completely and see if it boots up from that?

 

[coozie7]

A little more research shows your PSU comes with 6 PCI-E leads four have a solid 8 pin plug at one end (which should be plugged into the PSU) and a single 6+2 pin PCI-E plug on the other end, you can use 4 of these if you wish, two per card.
It also comes with 2 other PCI-E leads, each with a solid 8 pin at one end (again, this should be plugged into the PSU) but these leads each carry one 6 pin and one 6+2 pin plugs, you may use these two leads if you wish, the choice would just be down to how neat you want the system to be, I'd use two leads rather than 4 just because it'll lead to a neater interior.
You will not cause any damage with either configuration.

First, about the booting issue: DON'T PANIC!
The fact that the system starts at all shows things are working but something MAY not be entirely correct, so check the keyboard, mouse internet connection etc are plugged into the rear ports and try again.

If it still boots oddly: DON'T PANIC! Of all the systems I've built only the one I'm using now fired up perfectly first time ALL the others refused to boot or did something weird first time.
The single most common problem is (for first builders) nerves, so DON'T PANIC and grab the motherboard manual then check that every wire is correctly connected.
Work methodically, check the little motherboard wires first, then the flat SATA (HDD/DVD) cables, then the main power cables and finally, check the monitor, mouse, keyboard etc are connected around the back of the system.
Note, do NOT mess around inside the system unless the power cord is removed...Ever. Even with the system 'off' there's a small current supplied from the PSU to the motherboard-that's how the system knows when you've pressed the start button to get it running!

 

[E-AlRomaithi]

A little more research shows your PSU comes with 6 PCI-E leads four have a solid 8 pin plug at one end (which should be plugged into the PSU) and a single 6+2 pin PCI-E plug on the other end, you can use 4 of these if you wish, two per card.
It also comes with 2 other PCI-E leads, each with a solid 8 pin at one end (again, this should be plugged into the PSU) but these leads each carry one 6 pin and one 6+2 pin plugs, you may use these two leads if you wish, the choice would just be down to how neat you want the system to be, I'd use two leads rather than 4 just because it'll lead to a neater interior.
You will not cause any damage with either configuration.

First, about the booting issue: DON'T PANIC!
The fact that the system starts at all shows things are working but something MAY not be entirely correct, so check the keyboard, mouse internet connection etc are plugged into the rear ports and try again.

If it still boots oddly: DON'T PANIC! Of all the systems I've built only the one I'm using now fired up perfectly first time ALL the others refused to boot or did something weird first time.
The single most common problem is (for first builders) nerves, so DON'T PANIC and grab the motherboard manual then check that every wire is correctly connected.
Work methodically, check the little motherboard wires first, then the flat SATA (HDD/DVD) cables, then the main power cables and finally, check the monitor, mouse, keyboard etc are connected around the back of the system.
Note, do NOT mess around inside the system unless the power cord is removed...Ever. Even with the system 'off' there's a small current supplied from the PSU to the motherboard-that's how the system knows when you've pressed the start button to get it running!

Thank you for your time I really appreciate that !
Regarding the boot issue the first boot was like that but the second boot was perfect and now every time my computer boots perfectly. I didn't do anything to fix that lol.

 

[coozie7]

HA! HA! Like I said, "MAY not be entirely correct", looks like the motherboard just took a little time sorting itself out.
Hopefully now everything is working and you can get down to enjoying the new system.