Hey everyone, I have new news. X-built, I would value your input on this especially. As previously reported, I have never been able to get a good OC out of my E8400 (see more specs in sig). I haven't given up on it thought. Tonight I tried some new things, but first some history:
Original BIOS - No OC ability
1B4 Beta allowed 3.4Ghz max
Recently updated to the .116 beta, still no OC past 3.4Ghz.
Some feedback I have been given is that having 4 dimms causes the NB to do more work, so tonight I took apart the rig and pulled dimms from slots 2 and 4, leaving me with just 2Gigs total. Rather ambitiously, I tried right away for 4.0Ghz using +0.2v vcore, 1.4v NB 2.10 dimms, and 25 FSB term. Bios would post but no windows load. I tried +0.25 on vcore same thing, so I guess the CPU volts wasn't an issue. So I decided to try something easier... the E8400 has a FSB hole at 1600 so I decided on 1666 and 833 ram. Set vcore to +0.2, Nb to 1.4, dimms to 2.20 and FSB term to 63. Guess what, windows loaded and thus i'm typing now.
So what does this tell us? I have NEVER been able to reach 3.8Ghz, not even close, that said I have not tested stability yet, but just the fact windows loaded is a big change. So was it the removal of 2 dimms? overcloking my remaining 2 dimms at 2.20v? the higher FSB term? some other factor? I really can't explain it. But at last now I have hope with the acheivment of 3.8Ghz. I would love some advice on where to go from here to reach the magic 4.0. I would also value some advice on how to test stability properly. I have SP2004 readdy to go but am unsure of options and settings.
Update: I decided to run some SP2004 tests. I ran 2 instances, one on core #0 and one on core #1. I set to blend testing. Both instances stopped at 5mins36secs with errors reported. My Vista Gadgets sidebar app also crashed, but windows remained operational. If it helps, here is the SP2004 log:
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More than one CPU detected.
You should run two copies of SP2004 simultaneously.
More than one CPU detected.
You should run two copies of SP2004 simultaneously.
Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 1790 Time: 15
CPU: 3750MHz FSB: 333MHz [340MHz x 11.0 est.]
4/1/2008 11:59 PM Beginning a continuous self-test to check your computer.
Press Stop to end this test.
Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
Test 2, 4000 Lucas-Lehmer iterations of M19922943 using 1024K FFT length.
Test 2, 4000 Lucas-Lehmer iterations of M19922943 using 1024K FFT length.
Test 3, 4000 Lucas-Lehmer iterations of M19374367 using 1024K FFT length.
FATAL ERROR: Rounding was 0.46875, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 5 minutes 36 seconds - 1 errors, 0 warnings.
Execution halted.
Test 3, 4000 Lucas-Lehmer iterations of M19374367 using 1024K FFT length.
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 6 minutes 30 seconds - 1 errors, 0 warnings.
Execution halted.
#####################
Cheers.
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