I recently acquired an AOpen AX63Pro and P3 Coppermine 700 for a build. I have tried to use this board with a Matrox G550, a Geforce 2 mx and Quadro4 280 (basically a FX5200), but when using the Nvidia cards the system either not posts at all (stops at Award POST code C0, failure to initialize graphics adapter) or the image is unstable/corrupt as shown in the attached photo. The G550 seems to work well enough.

The fact that both Nvidia cards fail in the same way leads me to suspect the problem is in power delivery. I am using this system with a Fractal Design SFX 650 PSU I had laying around which according to its specs can deliver 20A of both 3.3V and 5V and 100W for both rails combined. Should this be sufficient for a system like this or do I want to go and find an older ATX PSU, with the hassle of potentially having to service that PSU etc.? I visually inspected the motherboard and GPUs for obvious damage, paying close attention to caps, but the boards look clean.

Specs:

- AOpen AX63Pro
- P3 Coppermine 700
- 2x 128MB PC100
- SD card to IDE adapter
- Matrox G550 or Asus Before 2 mx or Nvidia Quadro4 280 NVS
- Fractal-Design SFX Ion 650 PSU