weird startup issue

[NoodleGTS]

So I've OCed my E8400 to 4Ghz and my DDR2 800 to 1000 at 5-5-5-18.
This runs stable for over 25 hours under Orthos and I eventually wanted to use my computer again so I stopped it...

When I turn on my machine, nothing happens for a while (just fans spinning)... then, after taking much more time than usual, it acts as if something failed and i had an oveclcock that was too high. I go into the bios, and then exit without changing any settings. When I do that,it boots into windows right away.

Again, system is 25 hours orthos stable. what gives?

 

[Nebulous]

Maybe voltage. What's your vcore and vdimm set at?

 

[NoodleGTS]

Vcore is at 1.48 in Bios and Vdimm is 2.2

 

[Nebulous]

Dam 1.48v to the chip is alot for 4.0Ghz for my liking. Mine is 1.3v. However 2.2v for the ram is nominal. What mushkin ram to you have? Got a link with specs?

Also have you raised the voltage to the NB?