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Yet another Q6600 Overclock Help

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April 23, 2011 2:52:35 AM

I could use help overclocking my computer.(obviously) I have a q6600 g0 stepping, that has a really low stock voltage, I think the board sets it auto to 1.235v, which reads as 1.056 in cpu-z. That is fully stable at 2.4Ghz on my gigabyte EP43T-UD3L. I was very easily able to get it up to 2.96 GHz, but it seems impossible to get at 3Ghz, or higher. I tried everywhere from 3.0-3.35 Ghz since I have heard of stability holes around that area. I am using Crucial DDR3 1333. (2x2Gb) I dont think I need any faster, especially since i would drop the memory multiplier down and it would still not be stable. I am afraid to boost the voltage too high, as this pc (my first ever build) has to last me some time.
With such a low stock VCore, I would think this chip would be very receptive to OCing, and will run at 2.96GHz @ 2.2375v (BIOS) that reads at 1.1875v or so in cpu-z. I have boosted the VCore all the way up to 1.3250V and could not manage a mere 40 Mhz more. Is that normal? I have an AZZA Spartan case with a custom sidepanel for high airflow and 2x92mm fans that blow a total of about 90cfm directly onto my CPU heatsink (Zalman 9500) and two extraction fans and rear vents. Yet, I could not raise my VCore any higher becuase I was getting 79C in IBT and 75C in Prime. I dont think I should go much higher if at all.
I have an obsessive personality and have been reading about almost every other q6600 I can find and overclocking in general, but I still cant get this. Like I said earlier, this is my first build, and I did it on limited money, but Im pretty damn proud of it. I don't know any other 17 year olds who can do this, but I want help from all of you to make this the best it can be. Thanks!

More about : q6600 overclock

April 25, 2011 10:51:09 AM

Its actually very risky with those temps to go any higher! Normally the Q6600 Go is "unsafe" at over 65C... (65nm...). And 70 is the MAX.
That cooler is not good enought to go higher (Check if your mounting is not tight enought or the thermal paste is wrongly placed, you might get an extra 5 C, but lower those temps!).
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April 25, 2011 1:56:04 PM

Yeah those temps are really high. I was able to get 3.4 GHZ out of my Q6600 w/ the same CPU Cooler and I was running temps in the low 60's in prime. I did have 3 120 MM fans and a 80MM too though. After I hand lapped the CPU and cooler I was able to get the temps down even further to the high 50's.
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April 25, 2011 3:28:43 PM

Well, I can get 2.96Ghz on 1.2375 Vcore in the Bios with temps of 60 in IBT and 54 in Prime. I am wondering if there is anything I am doing wrong. I understand the heat-sink isnt the best, but do you think I should be getting lower temps? And am I just reaching the ceiling of the chip capabilities at 2.96 GHz? I haven't heard of any OC on a Q6600 that hasn't been able to hit 3Ghz stable.
Perhaps my power supply isnt strong enough for a higher oc?
OCZ 600W Running:
GeForce 460 Se (OC 35%)
Q6600 (OC 2.96Ghz)
4 x 92mm fans (2 very high speed) (All 4 Have Lights)
2 x Crucial DDR3 1333 DIMM
Maxtor 500 GB (Windows Boot Drive + most files)
Hitachi 60GB (Ubuntu installation + some backups) It was a spare drive I found laying around from the turn of the millennium, and threw it in.

This is on a Gigabyte EP43T-UD3L. That may or may not help, I don't know.
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April 25, 2011 3:31:33 PM

woods95662 said:
Yeah those temps are really high. I was able to get 3.4 GHZ out of my Q6600 w/ the same CPU Cooler and I was running temps in the low 60's in prime. I did have 3 120 MM fans and a 80MM too though. After I hand lapped the CPU and cooler I was able to get the temps down even further to the high 50's.


At what VCore? can you list all of your Bios changes from stock so I can make sure I am truly doing this right?
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