P6N Sli Plat. weird cold boot issue (solved)

Question

Hello again,
Since a few days I'm having troubles starting pc in coold boot
If i shut it down and leave it for a couple of hours, cold boot, it wont start, but when I shutdown and power down psu for a minute, it will boot
If I then turn the psu back off and on and leave the pc off, the next morning it starts normally.
Tried on stock settings, no problem, checked psu out, functions normally, none to less fluctuations on all lines.
Set my first disk to boot only, disabled the rest.
Had this running for 5 months without hickups, but since i wanted to go to 3.6GHz  and installation of my new SATA-II, I've had this problem.
What am I missing.
Tried lowering NB, which results in unstable system, looser timings mem, lower/higher Vdimm, no effect.
System is in IDE not raid since my second is IDE, for storage.
I connected the 8 pin cpu connector instead of the normal 4 and that didnt work either.
Changed slots for the DIMM's, ran memtest at 860MHz 4-4-4-15-2T, no errors after 10 hrs.
Orthos/Prime95 stable after both 10+ hrs, blend and small fft's.
Hope it's not the mobo dying, checked it out and cant see anything funny, or smell strange things.
And as said at stock no problemo.
What did I do wrong this time 
Edit:
After oc-ing to 3.6GHz benched cpu and it ran at Tcores max ~61C.
When i returned to old settings for 3.44GHz, I set everything back the same way it was, even cleared cmos before doing so.
Tcores max after 10 hrs of Orthos or Prime95 ~55C @3.44GHz

Answer 1

yeah well if I set the timing to like 5-5-5-15 or something I'm sure it'll work fine.    But that's not the point...  Cuz if I have to set my timings to 5-5-5-15 just to get it up to the 889mhz that I need it.  I might as well just run the run in async mode at 4-4-4-12 800mhz.
Seriously I have the weirdest ram.  I can run it at 4-4-4-12 800mhz with like 2.0 volts.  So There's like 0.2 volts of overclocking there.  But it just won't work at 889mhz.  And it not like it doesn't pass memtest or orthos.  The weird part is that it passes both at 889mhz at 4-4-4-12 timings at 889mhz.  The problem is that it won't start cold boot.    I'll have to press the power button and then press the reset button to get it to boot.  I guess that's not a really big problem, but having to press that reset button each time I cold boot is just really annoying. 
If I set them to 4-4-4-12 at 800mhz, the computer turns on fine.
I think the problem is the precharge for the ram.  I'll bet loosening the timing will make it work, but I just don't want to loosen those timings... 
I just bought new ram so we'll see if that solved my problems.  :-P
It might be the electron migration thing though.  I hear electron migration damage to things show up as random unpredictable problems.
I would say my problems are random and unpredictable. 
By the way, I just got a couple of fans for the ran slots.  They're sort of just jammed in there.  Kind of not elegant really.  But I now have TEN fans in the computer.  I hope that helps my ram overclocking.