OC - FAILED @ 4.1, Successful at 3.9? Help? PIC

520 Views 15 Replies 9 Participants Last post by gooddog, Mar 12, 2009

DdotRoq

Discussion Starter · Mar 12, 2009

Hello Everyone,

I am attempting to run and reach 4.6 ghz. I can't make it up to 4.1 because I get a memory dump. I have my memory on AUTO in the BIOS (I tried doing custom voltage to the CPU but found AUTO voltage automatically sets it up perfect). I boot on both 4.1 AND 3.9, however once I do Prime 95, I get successful figures with 3.9 (a little high temps towards 20 minutes). What do you think?

What can I do to reach 4.1 and beyond?

Thanks for the help!

My current results:

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1 - 16 of 16 Posts

whe3ls

· #2 · Mar 12, 2009

what rad to you have. you need to bring down your temps

gooddog

· #3 · Mar 12, 2009

these chips - even the 965 have a serious problem getting past 4G. I really don't think it is possible without some other mystery settings changed (e.g. I heard CPU clock skew helps, but I don't know how or what settings).

riflepwnage

· #4 · Mar 12, 2009

how much vcore are u using that seems hot, because i have a dual rad internal and i get 60C max load 4.2ghz

DdotRoq

Discussion Starter · #5 · Mar 12, 2009

I have a Blackice gtx480 rad. These CPU's run hot, after reviewing a few results, I've found that the cpu's just run hot as hell. My main issue is getting past 4.. there is definitely some mystery behind it.

DdotRoq

Discussion Starter · #6 · Mar 12, 2009

EDIT - vcore - 1.1v according to Everest. I have it on AUTO.

Lazman1

· #7 · Mar 12, 2009

those temps are way too high bring them down.
I get lower temps on my air setup.

t_russell

· #8 · Mar 12, 2009

Digital multimeter

jrharvey

· #9 · Mar 12, 2009

Quote:

Originally Posted by DdotRoq

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EDIT - vcore - 1.1v according to Everest. I have it on AUTO.

Your gonna have to take it off auto. 1.1V is not enough for that speed. I also doubt that auto is giving you that low of voltage. Im not sure what voltage you will need but I think 1.38 is good enough for 4.1ghz if I remember right.

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DdotRoq

Discussion Starter · #10 · Mar 12, 2009

I am trying to get to 4.1+, pls lets not worry about my temps..

I live in Miami, Ambient is like 85 degrees F on average.

DdotRoq

Discussion Starter · #11 · Mar 12, 2009

Quote:

Originally Posted by jrharvey

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Your gonna have to take it off auto. 1.1V is not enough for that speed. I also doubt that auto is giving you that low of voltage. Im not sure what voltage you will need but I think 1.38 is good enough for 4.1ghz if I remember right.

Iam going to give that a shot... thanks!

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tpavur

· #12 · Mar 12, 2009

Quote:

Originally Posted by jrharvey

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Your gonna have to take it off auto. 1.1V is not enough for that speed. I also doubt that auto is giving you that low of voltage. Im not sure what voltage you will need but I think 1.38 is good enough for 4.1ghz if I remember right.

1.38 seems high as hell, i'd go 1.35 and go from there, however your temps are horible for a wc setup.

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laxrunner

· #13 · Mar 12, 2009

Yeah those temps seem really high for water. My load temps are lower than that on air at 4GHz. Aside from that, I am gonna say start setting your own voltages, motherboards aren't that smart and its good to know they won't be going anywhere. 4.6 is going to take a bclk of 200 at x23 multi and probably a good bit of voltage. I don't have a 940 so I don't know how the higher multi affects things but it is going to take a bit of exploring to get it stable at that high of a frequency. To start, put your memory at whatever the spec voltage and timings are for 1600MHz. After that you basically start bumping bclk and vcore making sure you are stable and load temps aren't too high. You're eventually going to have to start bumping other voltages as well but thats part of the fun of overclocking, figuring things out.

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DdotRoq

Discussion Starter · #14 · Mar 12, 2009

K... well I've tried a bunch, won't get my temps lower. 940's just run hotter than 920's and my ambient is much hotter. Unless I install a chiller, I won't get anywhere. My previous air setup was 10 degrees hotter.

jrharvey

· #15 · Mar 12, 2009

Quote:

Originally Posted by DdotRoq

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K... well I've tried a bunch, won't get my temps lower. 940's just run hotter than 920's and my ambient is much hotter. Unless I install a chiller, I won't get anywhere. My previous air setup was 10 degrees hotter.

You could try different multipliers. Honestly, even if you could get stable at 4.1 it would be tough on the chip with those temps. I know you said not to worry about temps but I think you may get in the 90's at that speed from the looks of your temps at 3.9ghz.

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gooddog

· #16 · Mar 12, 2009

Quote:

Originally Posted by Lazman1

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those temps are way too high bring them down.
I get lower temps on my air setup.

How are you getting 4.2?! Great results.

Do you have HT enabled?

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