I have this FX 5900 XT graphics card that I received in one of those "scrap lots". It does not work at all and first I thought it was due to the bulged caps and ordered some replacements for recapping it.
Upon closer inspection I saw that a transistor (?) on the back side of the card was knocked off (but still there). The silkscreen identifies it as Q502. It can't be soldered back in place because the legs are ripped off, so I need to replace it.
Unfortunately I can't really identify it. The inscription is really tiny but readable, see pictures below. I tried googling different variants:
- GOA3T
- G0A3T
- GDA3T
- GOA8T
- G0A8T
- GDA8T
But none of these returned plausible results. The package seems to be SOT-23.

There is a second identical component (Q501) that I could try do de-solder and then measure, but since I do not have special SMD soldering equipment nor extraordinary soldering skills, I'd rather avoid that.

Any help would be appreciated.

EDIT:
After some more googling I might have found two possible candidates:

1. IRLML2502 (fast-switching MOSFET, would make sense) --> Datasheet: https://www.infineon.com/dgdl/irlml2502pbf.pd … 1535668048e2606
The code would translate to:
G = Part No. IRLML2502
0 = Year 2000
A = Week 01
3T = Lot Code

2. HSMP-3890 (single diode, which would not make much sense imo) --> Datasheet: https://media.digikey.com/pdf/Data%20Sheets/A … P-389x-489x.pdf