they really screwed this up.. i'm having the same issues.
stable fine for 6 months, no errors....
i switch to 6.22 with the -smp flag, and now I get this error every 2-3 days.
MSI P6N SLI Platinum
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130081&CMP=EMC-IBSIMPLE051007&ATT=N82E16813130081
$157 w/ $7 shipping = $164 shipped
if you are an email subscriber you can use coupon code: EMC510DP6NS and get $10 off for a low $155 shipped
from here...
i had almost identical results with my E6600 / Freezer 7 Pro, nearly identical temp/volts for speed... as far as I'm concerned anything up to 1.5 is safe for OC'ing purposes, but i'd run at 1.45 or 1.4 or lower to greatly increase the length of you components...
i reached all those speeds...
the best way to diagnose it is by plugging in the USB plate w/ the 4 LED's on it into the USB header and using the user manual to determine the error code it's spitting out (determined by the sequence of the LED's)
you do realize those cables could be causing a lot of your heat issues right?... it's not just about being clean, it's about being cooled with a proper airflow, at least you have negative pressure in your case, but still
revised, would not run orthos so i can't confirm load temps, but at 3.4Ghz, the load temps were 60-63'C, orthos stable with same settings as above with 1513 FSB
i was literally in shock considering that this is an SLI-FI board and not a Platinum board, backed it down, now running 3.150Ghz (1400...