I saw that as well after I ran the perfmon.Well, I only saw one 0x124, so it looks like it could have been a fluke. Perhaps it wasn't actually the processor's clock, but the motherboard's bus clock was thrown off by the video card. Either way, I wouldn't worry about that. The RMA is a good idea.
I do however see devices labeled #UNKNOWN#. Verify that you have the latest chipset drivers installed as well.