I have this old PowerColor ATI Radeon X1650 graphics card that still works. But the main problem is that the cooling fan is not sufficient and it pretty much get stuck always. I found an old cooling fan for an AMD Athlon 64 CPU and used that instead.
Step 1: Remove the Old Fan and Heatsink.
Gut out the old fan from the PowerColor graphics card, and detach the heat sink from the circuit board
Screw the AMD fan onto the heatsink. Tighten the heat sink fins around the screws using a long-nosed plier to secure the screws tightly.
Step 2: Mount the Heatsink Again
With the AMD fan screwed tightly to the heatsink, mount the heatsink back to the circuit board.
Step 3: Snip the AMD Fan Power Connector
The fan power connector for the old PowerColor fan is smaller compared to the AMD cooling fan's. Snip out the AMD fan's power connector and replace it with the fan connector from the old fan.
Step 4: Attach the Old Fan
Step 5: Test the Fan.
Using a DC power supply, test if the fan works.