I tried for starts running CPU and NB Clock Skew on normal, and needed to set vCore at 1.38 for 4.2GHz, so new chip and all I started tweaking ( 500 FSB still evades me ) I set CPU and NB skews to 100ps and lowerd vcore, it passed. set it to 200ps and lowerd, it passed again. 300ps and lowerd it failed, up'd vCore to 1.325 @ 300ps on both skews it passes linpak and prime.
Now on to NB volts, started with NB GTL set to auto, set ram at 1121MHz with vNB set to 1.39
DRAM Static Read Control: Enabled
Dram Read Training : Enabled
MEM OC Charger : Disabled
Ai Clock Twister : Stronger
Transaction Booster : Manual
Common Performance Level [8]
CPU would pass but once I brought the memory in to play it would fail.
So I upped NB volts to 1.45775 and it would pass anything I tossed at it.
Set NB GTL's to +30 and I could lower vNB to 1.41, anything lower and it fails.
If I run 1:1 PL10 I can drop vNB to 1.30 and pass all day long. I like the improved bandwidth 1121 offers and I'm on water so the extra volts are not an issue.
Will test further this weekend, this time of year my job has me pretty busy so has not been alot of "free" time for me.
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