Ugh, don't move the RAM, it's probably DC RAM. Put it in slots 2 and 4 and just do the quick fix I posted every time you cold boot until you can get your hands on some 1866 MHz RAM.
The harddrive issue is just a sideeffect of the failed clock. Do you expect it to find the SATA ports if it won't go past the RAM?
EDIT: And like fuzzykins said, update your BIOS. Download it onto your computer and use the flash update option in the BIOS. Better yet, take your computer to a local computer tech and say "Get it working please" pay the $100 or so and get it done the easy way.
EDIT 2: While you're at the computer tech ask him to try a 44 multiplier. The 2600k can run that on air cooling no problems.
EDIT 3: going to bed, GO TO THE TECH.