Question Radeon HD 7970 or HD 6950 GPU doesn't work on my motherboard ?

[Kyozxp]

Hello.
I have an H410M H V3 mobo and an i5-10400f CPU.
But an AMD Radeon HD 7970 or Radeon HD 6950 GPU don't work, does anyone know why ?

 

[Phillip Corcoran]

Both those cards have 6-pin and/or 8-pin connectors on them to which you must connect the appropriate PCIe power cables from the PSU.
The cards will not work on slot-power alone.

Have you connected the aforementioned PCIe power cables ?

 

[Kyozxp]

Yes, i tried an msi 1060 and that worked but the Radeon cards did not.

 

[Phillip Corcoran]

Make, model & approximate age of your PSU ?

 

[Kyozxp]

Tested on Corsair CX 750 and Corsair TX 650M, these are five years old

 

[Phillip Corcoran]

PSU is obviously working okay if it runs a 1060 with no problems. And both PSUs should be okay to run either of those Radeon cards.
That points to the possibility that the Radeon cards may be faulty. Can you test them on another PC ?

 

[Kyozxp]

all hardware are working in others builds, tried to force gen 1 or 2 pci in bios config and the bios is up to date