Quote Originally Posted by my87csx481 View Post
Hi all....been lurking here for quite some time....thought I was finally getting close to 450 x 9 for crunching 24/7 (well, minus a few hours of gaming here and there)....finally got memtest 2.01 to actually make it through a few passes by actually lowering my NB from 1.46 to 1.36 (in BIOS), but Prime still fails....froze after 4 hours....can't crunch WCG without freezing (haven't tried in a while though).

System Info:
E3110 (will do 450 x 9 if I leave the mem at 1600 7-6-6-20-2T which was stock timings when I bought them back in April - mfg's specs have since changed - OCZ 1600EB4GK)
Caseless
Fans over ram and NB
Fans also blowing across
TRUE 120 push-pull
Vista Ultimate x64

Settings in BIOS - 1002 non-beta (board overvolts almost everything I think):
1780 QDR
1780 DDR3
Unlinked
8-8-8-24-2t-all sub-timings on auto
P1 - Enabled
P2 - Enabled
Vcore - 1.325
LLC - disabled
PLL - Auto
VTT - 1.3
Mem - 1.86
NB - 1.36 (was at 1.46, tried up to 1.5 in .02 steps....memtest failed or locked sooner with higher voltage)
SB - 1.55
NB GTL - +20mV
If it's not mentioned, it's auto.

It passes memtest at least 3 passes. It passes Winblows memory diagnostic tool (default....what are you guys using for settings for this?). Passes OCCT 1hr CPU, 1 hr MEM, 2 hr MIX. Passes 3dm06. Can't get it to Prime successfully. I seem to be able to game without trouble....mostly been sim-racing lately....not much of a load on the system though. Any suggestions for 24/7 stability/Prime stability? Thanks for any help.
I looked at your settings and I think 1.36V is way too low for 4GB RAM and high FSB, especially with P1/P2 enabled. Try 1.4 SPP and disable P1/P2 and Memtest first for starters. It has happened to me so many times with the earlier BIOS release with P1/P2 enabled and system freeze while priming. Heck, I even RMAed a very good pair of same EB sticks that you have, just because of the system freeze and I thought it was the RAM. Those sticks did 1800@ 7-7-7 no problems with 1.96V and it turned out be a BIOS problem with P1/P2 enabled.The replacements that I got sucks big time.Your sticks also look good as they could do almost 1800 @ 1.86 passing memtest.

The Vcore also looks pretty nice for 4GHZ that you are running(1780x9).Usually when the vcore is too low you will see a BSOD and/or a system restart.I also hope all the spread spectrums are disabled and C1E and EIST diabled(the usual stuff while ocing).

Good luck.