One more update
So I overclocked my system and was able to stabilize it. Currently I'm running 4.2ghz @ 1.375 (core voltage). I ran OCCT for 24 hours and 8 tests of memtest86 to verify stability. No issues at all. Core temp during the 24 hour test @ 100% load reached 76 degrees Celsius.
I conducted the Dverb test (PT 8.0.4 cs2). My results (XP Pro 32 and Win7 Pro 64 results were almost identical):
315 dverbs (maxxed out) @ 64 samples: system load at 78 - 82%
315 dverbs (maxxed out) @ 64 samples: system load ~ 71%
Highest temp during the 5 minute play back was 62 degrees Celsius. I'm posting all my info in hopes that it may help other builders as this thread helped me.
Cinebench Results: Open GL - 11.55; CPU - 7.24 (not bad at all)
My build (as stated a few days ago in the previous thread):
1) Asus P6X58D Premium
2) I7 950 @ 4.2
3) Noctua NH-D14
4) Kingston Hyper X 6GB @ 1600
5) PNY Quadro FX580
6) Lite On iHAS524
7) All HD's are SeaGate Barracudas @ 7200
8) Silverstone FT02 Case
9) ADS Pyro PCI 64R2 firewire card (digi approved, I returned the Lacie card)
10) Mbox 2 Pro
11) Windows 7 64 Pro and Windows XP 32 Pro
My 4.2, stable overclock settings:
CPU Ratio Setting: [21.0]
BCLK Frequency: [200]
PCIE Frequency: [100]
DRam Frequency: [DDR3-1603MHz]
UCLK Frequency: [3208MHz]
DRAM Timing: 9-9-9-27
CPU Voltage: [1.37500]
QPI/DRAM Core Voltage: [1.2065]
IOH Voltage: [1.10]
DRAM Bus Voltage: [1.65] **make sure you don't go over this according to intel i7 specs.
CPU Spread Spectrum: [Disabled]
PCIE Spread Spectrum: [Disabled]
HyperThreading is on
Everything else is set to the default