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Q6600 overclocking

Vcore 1.25v (VID 1.2625)
CPU host frequency 400mhz
CPU clock ratio x8
Load line calibration ENABLED
DRAM Voltage 2.1v
DRAM timings 4-4-4-12
I run this on a giga EP45-UD3LR with the same OCZ plat ram.
Disable the load line cal option i need to hump Vcore up into the 1.3's to acheive a stable OC.
At the mo cpu-z/HW mon tells me Vcore is 1.28v.
Basically try the load line cal option if you havent allready unless this is something really bad and will kill my cpu within few years ? i dunno tbh im hapy with 3.2ghz now so havent messed/researched any deeper :)
Temps wise prime dont even hit 55degs IBT pushing around 65degs and idle around 35.
 
Interesting. I ran memtest86 with all 4 sticks in at stock speeds, auto settings on memory and 2.1v as they are rated. it crashed almost straight away.

I then tested 2 sticks which seemed fine for 5 minutes, then the other 2 were fine too. Tested 4 sticks again and they crashed.

Im currently running prime95 blend on all 4 sticks. 800mhz, 2.1v, 5-5-5-15

I think my problems may well be with having all 4 sticks in together. Anyone have any ideas on why memtest86 crashes with 4 in but is fine with 2? I noticed the channel settings are different in the bios, but have left them on auto
 
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