I don't think that the PCIe v1 and v2 is an issue, as they are supposed to be backwards compatible and both the MoBo and video card are Asus products. Anyway you should have removed the video card and be using the onboard chipset for troubleshooting.
Agreed, but as you said, supposed to
At this point nothing should be left to chance.

BTW, if the memory was not on the manufacturer's list, it may still work as long as they are the proper type ( unbuffered non-ECC DDR2?) But the modules may not work together even if they are both good! Another reason I said use just one chip.

Just waiting for CN22 to get back to us now on how he made out.
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