Intel QX6700 Overclocking

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Sup3rPsycho

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Aug 23, 2013
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Hello guys. I have recently purchased a QX6700 2.66 quad-core and i was hoping to overclock it, but i have no clue how to overclock. i was hoping to get it up to a 2.9 or a 3.1 seeing that i have seen some people get it up to 3.4 (unless they were lying). I was hoping somebody could give me some pointers. Thank you :)

Specs:
Mobo: P5n73-AM
CPU: Intel core2quad extreme qx6700 2.66
RAM: 4gb crucial
GPU: AMD MSI Radeon HD6450 1gb low profile
and about 3 fans keeping it nice and icy :)
 
Solution
1LiquidPC
Your probably going to want to familiarize yourself with Core 2 overclocking guides. Since it's an Extreme Edition part, you can go about it the "easy" way by simply increasing the CPU multiplier and adding small amounts of vcore voltage. Your FSB (front side bus) is 266mhz, which is quad pumped as Intel calls it making the 1066mhz advertised FSB. Your stock CPU multiplier is 10 (266 * 10 = 2660Mhz). You can try increasing to 11, test for stability w/ Prime95 as it's still the most common stresstest I believe, while also checking temperatures using Coretemp or Realtemp. I'd try to keep it to low 70s MAX for temps, though everyone on here will have a different opinion on safe temps. If your computer doesn't freeze, BSOD, reboot...
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1LiquidPC

1LiquidPC

Splendid
Oct 11, 2014
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Your probably going to want to familiarize yourself with Core 2 overclocking guides. Since it's an Extreme Edition part, you can go about it the "easy" way by simply increasing the CPU multiplier and adding small amounts of vcore voltage. Your FSB (front side bus) is 266mhz, which is quad pumped as Intel calls it making the 1066mhz advertised FSB. Your stock CPU multiplier is 10 (266 * 10 = 2660Mhz). You can try increasing to 11, test for stability w/ Prime95 as it's still the most common stresstest I believe, while also checking temperatures using Coretemp or Realtemp. I'd try to keep it to low 70s MAX for temps, though everyone on here will have a different opinion on safe temps. If your computer doesn't freeze, BSOD, reboot, ect., you can change multiplier to 12 and run Prime95 again. Do you have an aftermarket CPU cooler, because your going to need one for overclocking with these chips. By OCing using only the CPU multiplier, you won't have to deal with memory dividers that you normally may need to adjust as you increased the FSB. Normally, with non EE chips, you increase the FSB from 266 upwards, as you can't adjust the multiplier. However, this number also gets used w/ another multiplier to adjust your RAM speed, which you can also change even further via Memory Dividers. But, since you have an EE, you can skip these things, unless you plan on tweaking RAM speeds as well. You will also have to do some searching and see what voltage your comfortable with for your CPU Vcore, as you'll need to increase to maintain stability during OC testing. If at any point you set something to high in BIOS (your CPU mulitiplier), your PC may not POST after saving changes and exiting. If this happens, you'll have to remove the CMOS battery from your motherboard for a few minutes to reset the BIOS.
 
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Sup3rPsycho

Honorable
Aug 23, 2013
142
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10,680
it was already set to x12 so i bumped it up to 18 and the heat it staying between 38-42C between all the cores and the CPU itself is running at 31-38C. Are these good numbers? I also noticed that the multiplier can go up to x50 but i dont want to risk blowing up my house lol.
 
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1LiquidPC

1LiquidPC

Splendid
Oct 11, 2014
5,314
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No problem :) Your using an 18X multiplier for CPU? That doesn't seem quite right as that means your running your CPU at 4.78Ghz. Can you post a screenshot of your BIOS OC settings w/ the 18X you mentioned, or perhaps a CPU-Z screenshot? Trying to see what going on here. Your temps look fine from what you mentioned.
 
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