PCIE Cable confusion

BLTenjoyer · May 28

Hi all sorry for the really noob question in advance.

My 1050ti recently died on me after 5 years and a friend has given me his old Rx 580. Ive never had to use a PCIE cable for my GPU since 1050 is 75w so he also gave me a to hook up to my semis modular PSU. However on my Powe supply (Bequiet pure power 10), the PCIE power slot has 12 pins on it where the cable he gave me has 8 (8 pins that hook into the psu and dual 6+2 that go into the card). I can't find the old box for my power supply so I'm assuming I have to buy a separate cable and I have no idea which one will fit my power supply. Any thoughts?

Specs:

Ryzen 5 3600

ASRock Killer Sli X370 ATX

RX 580

Bequiet! Pure Power 10 600w

24GB Hyperx Fury DDR4 2667Mhz

Thank you in advance

Spotty · May 28

You can't mix power supply cables from different power supplies. Please also tell your friend this so they don't end up killing their components one day by using the wrong cables. You would need to either find the modular cables that came included with your power supply or contact Be Quiet for replacement cables for the Pure Power 10 model.

filpo · May 28

3 minutes ago, BLTenjoyer said:

the PCIE power slot has 12 pins on it where the cable he gave me has 8 (8 pins that hook into the psu and dual 6+2 that go into the card).

Don't use different cables for different modular power supplies or it'll go KABOOM

3 minutes ago, BLTenjoyer said:

I can't find the old box for my power supply so I'm assuming I have to buy a separate cable and I have no idea which one will fit my power supply. Any thoughts?

You said it was called a bequiet pure power 10 right? Is it this one or is it the 700w version? be quiet! Pure Power 10 CM 600 W 80+ Silver Certified Semi-modular ATX Power Supply (BN278) - PCPartPicker

ImWilly · May 28

1 hour ago, BLTenjoyer said:

PCIE power slot has 12 pins on it where the cable he gave me has 8

There are 2 solutions:

1. If you still have spare PSU-PCIe power cable from the box, you should attached both from PSU to be RX 580 GPU

2. If you don’t have spare because lost the PSU box, you’re in luck. I attach link to official be Quiet! Website and they do sell spare cables and it mentions support your PSU (consider yourselves really lucky, because even Seasonic doesn’t offer selling cables on their website)

It has 2 type, one with 8-pin (6+2) and 16-pin (6+2) with ‘ponytail’

I would still suggest to use 8-pin to put less strain on the cable to deliver power

8-pin: https://www.bequiet.com/en/accessories/1445

16-pin:

https://www.bequiet.com/en/accessories/1446

TetraSky · May 28

To add to what the others have said with actual examples...

Here's the pinout for a corsair PSU and a Seasonic PSU:

Spoiler

On the PSU side, we can see there's a slight difference between where the 12V is located for the GPU cable. The molex/sata cables are also wired differently on the PSU side.

This is why we never mix and match PSU cables from different vendors, unless you made sure they were actually compatible. Otherwise you can kiss your components goodbye.