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can't stable i7 920 @ 4.0

post #1 of 58
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http://valid.canardpc.com/show_oc.php?id=1797888

ran prime95 for about 2 hours on Blend, then I tried in-place large FTS and it froze after like 10 minutes.

BCLK Freq: 191
PCIE Freq: 100
DRAM Freq: 1531

CPU voltage: 1.375
QPI/DRAM voltage: 1.375
DRAM Bus Voltage: 1.66

Load-Line Calibration: Enabled

DRAM Timing: 8 8 8 24

everything else is default. I'm noob at this, please help, thanks
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post #2 of 58
alright, let me see what are your temps ?
Do you have hyperthreading enabled?

Your voltage also seems really high cause I can run 4ghz at 1.19vcore
I have the same kind of D0 chip
 
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post #3 of 58
Thread Starter 
Quote:
Originally Posted by Banedox View Post
alright, let me see what are your temps and what cooloer are you running?
o sry forgot about temps.

Core Temp recorded max 75C, I'm on water cooling, Apogee XT block and a 360 rad.

edit: hyper threading? u mean the intel speedstep and turbo? both are enabled by default, so yes.
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post #4 of 58
Quote:
Originally Posted by Phoenix777 View Post
o sry forgot about temps.

Core Temp recorded max 75C, I'm on water cooling, Apogee XT block and a 360 rad.

edit: hyper threading? u mean the intel speedstep and turbo? both are enabled by default, so yes.
umm, No Hyper-threading is the Intel thing that gives a processor, "virtual cores" so since you know the I7 is a quad core but when task manager is open you see 8 threads.

Also I would turn on all the turbo boost and speed stepping when you are manually overclocking, it could mess things up. You can later turn things back on slowly once you are able to achieve a stable overclock.
 
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post #5 of 58
1.375v is pretty high for just -1,600mhz speed. Also have you tried linX testing or you just going to stick with prime95. Did you happen to get any kind of error code when it froze on prime95?
post #6 of 58
Thread Starter 
Quote:
Originally Posted by KILLER_K View Post
1.375v is pretty high for just -1,600mhz speed. Also have you tried linX testing or you just going to stick with prime95. Did you happen to get any kind of error code when it froze on prime95?
everything just froze, is there an error log saved somewhere?
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post #7 of 58
There will be probably something in event viewer on the crash. Could you run linx and see what happens also? Are you using turbo also with your overclock?
post #8 of 58
Turn off TurboBoost.
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post #9 of 58
Quote:
Originally Posted by Banedox View Post
Your voltage also seems really high cause I can run 4ghz at 1.19vcore
I have the same kind of D0 chip
And I OC'd mine to 493GHZ at 1.15vcore...yeah I call BS.

OP, 75C is way too high for a 4Ghz oc on water. Something's not right there.
Try just setting multi to 20x, bclk to 200, ram freq to 1600mhz (stock I'm assuming), vcore to 1.35, qpi/dram to 1.35. Should be very stable, in fact you should be able to decrease your voltages quite a bit still. Most people will still be stable at 1.29375v, but 1.325v should be pretty solid for near everyone.

You can leave HT on, but yes turn off Turbo Boost and SS
Edited by S0ULphIRE - 5/1/11 at 8:33pm
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post #10 of 58
Thread Starter 
found a guide here
http://www.bit-tech.net/hardware/cpu...-core-i7-920/3

copied it word for word, prime95 testing now, hopefully it wont crash in the next hour or so, then I'll just leave it on over night, which test should I run? Blend?

edit: lol as soon as I finished this post, my computer froze. (im on a laptop)
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