First off let me apologize I did not read the whole thread so if this is a repeat...

Most I7 problems come from not using RAM that is listed as compatiable with the I7 itself. If you goto the intel website they will list the exact RAM down to the serial number of what you need to use.

Trust me when I say don't use an online matching tool.

Don't beleive what some mobo or firmware says.

Goto the intel site look up the specs on your processor and make sure your ram is on the intel approved list in the configuration they say it needs to be in. Even if it is serial number 21343-A and you have 21343-B this could cause problems. The I7 has no northbridge so it handles RAM without a controller. So if the RAM is not tested as compatiable by intel themselves there is no gurantee it will work.

Trust me when I say I have built about 200 I7s now for vairous clients and the number one issue is them wanting to put in some ram, even good stuff like Corsair etc, that is not on the intel list.

If your RAM is not on the actual intel list gotten from www.intel.com then get some that is it will probably solve your issues.