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Help with ASRock x58 Extreme & i7 920 D0 - Page 2

post #11 of 31
Thread Starter 
Ok, so I got it stable (1h of Linpack in OCCT) at 3.8GHz using gabkicks's settings + upping the vtt to 1.34.
Now I'm trying to get it to 4GHz.
I upped the bclk to 191, but I get BSODs. I'm bringing the voltage up one notch at a time, I'm one over 1.3v by now, I'll keep going until I'm stable/I go over 85C/I hit 1.35v.
One setting I'm growing curious about is the CPU PLL: does anyone have any experience with this? Intel sets it by default at 1.86v (and recommends not to go over 1.88v), but most people use it at 1.82. In my experience, it doesn't make any difference, ie: bringing it up won't let you lower the vcore. Any thoughts?
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post #12 of 31
Quote:
Originally Posted by adriangb;12161245 
Bclk 160
CPU vcore 2.75
VTT 2.7

did you seriously pump your voltages this high?
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post #13 of 31
Thread Starter 
Quote:
Originally Posted by AliceInChains;12189169 
did you seriously pump your voltages this high?
read down the thread
I just edited the OP so that no one else get's confused about it.
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post #14 of 31
Thread Starter 
One step under 1.35v lead to 10m Linpack then BSOD. The CPU was very hot (it got up to 84C), but since it would never get that hot in real life (probably more like up to 75C, I'd guess) I'm comfortable with running it up to 85, but not much more than that.
I set it to 1.35v and booted changed OCCT prefs to 87C max, and then ran Linpack. After 5m it got to 87C and stopped, so it's too hot. Maybe in the winter...

If anyone can help me get it stable @4GHz with lower temps, that'd be great smile.gif
Right now I'm trying Linpack for 8h @3.8GHz, if that goes thru well, it's stable.
Edited by adriangb - 1/29/11 at 2:00pm
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post #15 of 31
raising the IOH voltage may get you more stability, but I am worried about overheating the IOH myself. not sure if it is a warranted concern. I dont wanna kill the motherboard tongue.gif its been running for me @ 3.8ghz for over a year. i did a few benchmark runs at 4.2, but they werent very stable. Also, i did those runs on much older bios (1.6 or 1.7).
Edited by Gabkicks - 1/29/11 at 2:05pm
post #16 of 31
You just have a very bad batch, i had a 3939A batch that needed 1.38v for 4.0ghz
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post #17 of 31
Thread Starter 
Accoording to this thread http://www.overclock.net/intel-cpus/778845-i7-920-cpu-asrock-x58-extreme.html up to 1.3v is OK according to intel. That's a lot of headroom, but since we can't monitor the NB temp I too am scared to take it further up. Maybe ASRock will know?

Edit: I just tried SpeedFan, apart from GPU, HD1, HD0, Core 0, 1, 2 (where's Core 3?? confused.gif EDIT: it knows it's there -it shows up in "Configure", it's just too many sensors to display ) I get:
Temp1: 40C
Temp2 43C
Temp3 127C >>> WHAT THE?? eek.gif (some bug here, if anything was that hot my PC would be on fire, lol). Now under Linpack it's gone DOWN to 74C, cpu socket temp I guess...).
Temp 2 is now 58C. I think this one must be the NB (Temp 1 is the only one left, it's stayed at 40C).
Edited by adriangb - 1/29/11 at 2:26pm
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post #18 of 31
Thread Starter 
Quote:
Originally Posted by antipesto93;12189502 
You just have a very bad batch, i had a 3939A batch that needed 1.38v for 4.0ghz
That's VERY bad news mad.gif
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post #19 of 31
you havent gotten it stable at 3.8 yet? see what your doing is trying to skip to the end result. this is not a good idea. there is a reason all the x58 guides say start of small. your trying to get to 4.0ghz without having any bearing of what your voltages should be. thats why its a good idea to overclock/fine tune in small increments. this way you get your bearing about your voltages.

i recommend getting it stable at 3.6 +or- 100 mhz. also play around with load line calibration. see what voltages it takes to stabilize an oc with and without llc.

overclocking is a very time consuming activity. im at 4.1ghz on my lynnfield, but only after months of fine tuning smaller/previous overclocks.

x58 is not like sandybridge. you wont get a high overclock right off the bat. sandy bridge overclockin is so easy a caveman could do it. x58 is going to take alot more skill and most of all time.
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post #20 of 31
Thread Starter 
Quote:
Originally Posted by AliceInChains;12189814 
you havent gotten it stable at 3.8 yet? see what your doing is trying to skip to the end result. this is not a good idea. there is a reason all the x58 guides say start of small. your trying to get to 4.0ghz without having any bearing of what your voltages should be. thats why its a good idea to overclock/fine tune in small increments. this way you get your bearing about your voltages.

i recommend getting it stable at 3.6 +or- 100 mhz. also play around with load line calibration. see what voltages it takes to stabilize an oc with and without llc.

overclocking is a very time consuming activity. im at 4.1ghz on my lynnfield, but only after months of fine tuning smaller/previous overclocks.
I got thru 1h Linpack (using 90% of the free mem). Some consider that stable, some don't. I think it's decent, but to stay at 3.8GHz I wan't to run 8h of Linpack, which is what I'm currently doing.
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