Boots fine? Doesn't sound like it.
anyway, did you update the BIOS on your MB? What model of g.skill do you have? (exact model #). If you didn't update your BIOS and the memory does not run at EXACTLY 1.8V you will have the type of problem you describe. Get some memory that does work at 1.8V and you will be able to enter BIOS to set the memory voltage to whatever your g.skill memory works at.
I had the EXACT same problem with that board and some OCZ memory that runs at 2.1V (bought some cheap kingston RAM to fix the BIOS, thank you Fry's return policy). Abit sucks like that, my previous Abit P4 board had the EXACT same problem 9wrong voltage seting for the memory). you would think they would figure this out? The latest BIOS sets the memory voltage to Auto, so you should be able to boot with it.
If the g.skill does run at 1.8V, well, probably need to RMA.