6+2 pin slot busted?

giupyjurassic · Mar 15, 2018

Hello guys. Yesterday I installed a new PSU (EVGA 650W G3). When I wento to power up the Pc, it didn't turn on and the Psu made a click noise. I tried to disconnect components one by one and lo and behold, the computer turned on when the 6+2 pin pci socket was unplugged. Any idea if there's some more ways to test the port or, god be merciful on me for asking the impossible, fixing it?

CountMike · Mar 16, 2018

You can start by checking voltages: https://allpinouts.org/pinouts/connectors/power_supply/pci-express-pcie-8pin-power/

giupyjurassic · Mar 16, 2018

You can start by checking voltages

How would I go about that? Also I don't think that it's the PSU fault. I tested the old PSU that still worked in that PC, and results were the same.

COLGeek · Mar 16, 2018

What GPU do you have connected to this PCIe power cable?

giupyjurassic · Mar 16, 2018

What GPU do you have

A Radeon RX 560 2GB.

COLGeek · Mar 16, 2018

That GPU does not require additional, external power. So what are you connecting the 6+2 cable (from the PSU) to?

CountMike · Mar 16, 2018

To test you turn PC on with PCIe leads disconnected and check voltages as per that link I gave you. If everything checks out there's something wrong with that GPU, it's power connections or seating in the slot. If MB has another PCIe x16 slot try it in there.

giupyjurassic · Mar 16, 2018

That GPU does not require additional, external power. So what are you connecting the 6+2 cable (from the PSU) to

A 8 pin slot labeled GPU_pwr. The old psu was plugged in there, and I did the same with the new.

COLGeek · Mar 16, 2018

What make/model is your motherboard? I suspect you need nothing attached to that port. However, it would be best to know what we are working with here.

giupyjurassic · Mar 16, 2018

It's an OEM Z370 mobo. I tried starting it with nothin plugged in the slot and the gpu plugged into another pcie, but the monitor gets no video output.

giupyjurassic · Mar 16, 2018

Ok, I got the PC booted with video. There was a 8 pin plug dangling from the mobo 24 pin socket. I sae in the manual that it fit in the slot, although with a much bigger gpu than mine. I tried it and it works, now I'll check if everything is alright

EDIT: Everything seems A-Ok, GPU included. One thing is strange tho: monitoring programs show that GPU voltage is 0.001v.

COLGeek · Mar 16, 2018

What monitoring program are you using?

giupyjurassic · Mar 16, 2018

What monitoring program are you using?

I tried both HWmonitor and Open Hardware monitor.

COLGeek · Mar 16, 2018

Sounds like the newer mobo's sensors are not being read correctly. I wouldn't worry too much about it as long as things are working properly. Future updates on the monitoring apps may be more accurate.

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6+2 pin slot busted?

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