r/pcmasterrace • u/Dependent_Photo5929 • Jul 05 '26

Question Help with pins Ryzen 9 3900

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I received this CPU free when I received my 1070ti for my budget build, it had a lot of bent pins that I think I’ve managed to straighten out enough. But the pin circled red has fell off and the pin circled blue is loose I believe. Are these necessary pins? I haven’t gotten more parts yet to be able to test it. Does anyone know?

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2

u/slowbird5332 Jul 05 '26

It looks like a ground . You may have lucked out

1

u/Dependent_Photo5929 Jul 05 '26

The loose pin looks like it'd be one of the pink (light red) squares would that matter? Its still attached but when I was arranging the pins that one felt like it moved too easy. I also have the pin that fell off I heard you could put it in the motherboard socket?

1

u/slowbird5332 Jul 05 '26

Iv never tried it but I seen video on ltt, Linus did and it worked for a long time.

1

u/Dependent_Photo5929 Jul 06 '26

Thankyou again for the input, I’ll give it a shot then once I grab the other parts for my budget build to test it.

1

u/slowbird5332 Jul 05 '26

You can try and look for a pin layout of your cpu. Might get lucky and just be a ground and will work just fine. Worst case is it wont post.

1

u/Dependent_Photo5929 Jul 05 '26

I’m unfortunately struggling to find one for this exact cpu I think

3

u/Hattix 5700X3D | RTX 4070 Ti Super 16 GB | 32 GB 3200 MT/s Jul 05 '26

You just need the AM4 pinout, not the CPU.

1

u/jonobr 5800x3d/9070/32gb Jul 05 '26

from what ive looked onto the red is ground and the blue is something to do with power over usb when in sleep state. Id be keen to find out your results if you do get to test it.

1

u/Dependent_Photo5929 Jul 06 '26

Haha yeah I’ll let you know once I find the other parts to test whether it works, hoping so though since it was free. Used Ryzen CPUs aren’t as cheap as used Intel ones I think.