Is there anywhere I could find a complete list of the CPUs that are compatible with the Dimension 5100 motherboard?

I would like to upgrade my CPU however I can't find any list of CPUs that are known to be compatible with the Dimension 5100's motherboard.

I checked the CPU socket type which is a LGA775, so I know that hardware-wise dual core CPUs should work, however the BIOS are very outdated, the most recent update for them was in 06, which was before dual-core CPUs so I'm not sure if it would recognize one.

Motherboard : Dell OJ8885

BIOS: Pheonix A01 (A03 is most recent)

Anyone know how I could find out which CPUs would be compatible, or know where I could find a list of them?  Thanks.