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2500K Overclock at stock voltage

Last response: in Overclocking
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December 29, 2011 4:37:06 AM

Hi everyone,
this is my first time on the forum. I'm a beginner to OC and was wondering if it would cause any problem OC without incresing the voltage. My 2500K is running at around 62C on full load and 66C at max temp. The idle temp is around 32C. It's clocked at 4,3Ghz and 1,056v in CPU-Z. I ran prime95 for 4 hours and it was stable.
Thanks in Advance!
a c 172 à CPUs
a c 197 K Overclocking
December 29, 2011 5:02:46 AM

No. In fact, that is the usual route. You go as far as you can before you start increasing the voltage.

4.3 GHz at 1.056 volts sounds like you won the CPU lottery (got lucky and ended up with a CPU with an unusually low VID).
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December 29, 2011 5:29:03 AM

1.056v? sounds like your cpu-z isn't reading it correctly. =\ I might be wrong, though.
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December 29, 2011 2:14:57 PM

i typically use hardware monitor to observe voltages. cpu-z claims 1.0XX and hardware monitor will say 1.3 which is on par with my bios settings.
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December 29, 2011 4:08:13 PM

So like chapstic said i tried HW monitor and it shows exacly the same values. One thing i forgot to say is that my motherboard only has a 4 pin power connector for the cpu. I am wondering if that doesn't cause any changes on the stock voltages.
I have a few screenshot of CPU-Z and Hardware Monitor while i was running Prime95.

Stock Settings:


Overclocked at 4,3 GHZ
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a b K Overclocking
December 30, 2011 2:02:48 AM

Sounds impossible that you have Prime 95 running and voltage is at 1.056V. Even if I ran Prime95 without overclocking my voltage shoots up to 1.2XX in CPU-Z.

Can you take a screenshot with Prime95, CPU-Z, and HWmonitor?
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January 6, 2012 7:22:39 AM

same here :







its says good or bad thing ??
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a b K Overclocking
January 8, 2012 3:45:29 AM

You guys are running Prime 95 only for several minutes - keep it running for 3+ hours and see if your system gets BSOD, shut down, or restarts.

You'll most likely see the system fail in under 1 hour - meaning you're going to have to up the voltage.
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January 8, 2012 10:10:46 AM

i got stable on 1320V...
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a b à CPUs
a b K Overclocking
January 8, 2012 1:04:25 PM

Also you want use small fft for cpu stability, large/blend does a lot of ram, where small mainly targets the cpu.
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January 9, 2012 2:51:21 AM

I have the same board. I read somewhere that CPU-Z and similar software has difficulty reading the correct voltage on gigabyte. It was recommended to use the Gigabyte software EasyTuner... I did a comparison and CPU-Z showed my voltage much lower than EasyTuner... i would go by what EasyTuner says or even better TouchBios.

Also I am wondering if you changed any settings other than the multiplier.
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January 9, 2012 8:12:19 PM

steadywaters said:
You guys are running Prime 95 only for several minutes - keep it running for 3+ hours and see if your system gets BSOD, shut down, or restarts.

You'll most likely see the system fail in under 1 hour - meaning you're going to have to up the voltage.


On this page i ran it for a couple minutes but i tried it for 4 hours and it worked perfecly.
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