Oil stains on GPU

[stevensoza]

I bought a gpu on eBay and now there's oil stains, I don't have all the parts to build my PC so I don't know if it works. Suggestions? Pics: https://imgur.com/a/HzLtk6h

 

[richiestang_78]

You can use a qtip dipped in some isopropyl alcohol and see if it comes off.

 

[SkyNetRising]

Those are not oil stains. Just the rest of the board is covered in dust.