i7 3770K OC advice 4.3Ghz

[amilatc]

Hi all,

I'm new to CPU Overclocking 😀
So I'm looking for an expert advice on my OC settings

Intel Core i7 3770K OC up to 4.3Ghz (43*100Mhz)
BIOS version 1908
Corsair H100i CPU Cooler
Asus Sabertooth Z77 Motherboard
Corsair 8GB (2x4GB) Vengeance 1600 Mhz CL9 DDR3 Memory kit
Corsair AX750 750W 80+ Gold Modular Power Supply

Ambient temperature - 28~31C

I overclocked my CPU with following changes to BIOS settings

OC turbo ratio (multiplier) 43
CPU core voltage manual (fixed) 1.200
Load line calibration - Ultra high
CPU core voltage frequency - Auto
CPU current capability 100%

After 12 hours of Prime 95 Small FFT test it is stable and did not record any error or warning. Please refer the following screen shot after 12 hours of prime 95.

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My rig is mainly used for gaming and I want to run my PC at least for 3-4 years.
Is my OC stable? If not what else should I do? Any improvement to current settings? Is my core temp and Core voltage high to the current OC?

And I want to maintain my Core Temperature below 80C which is achieved with current OC

Please advice me

 

[coastie65]

You should be fine, but if those temps are at idle, they are way too high. At best, at idle, they should be only in the upper 20's C to low 30's C. If you are using a stock cooler, than you need to go to another cooler and recheck the TMC ( maybe too much? ).

 

[amilatc]

You should be fine, but if those temps are at idle, they are way too high. At best, at idle, they should be only in the upper 20's C to low 30's C. If you are using a stock cooler, than you need to go to another cooler and recheck the TMC ( maybe too much? ).

Hi coastie65, Well I'm running with Corsair H100i. I checked my CPU temp at idle as soon as I saw your reply and it was between 30-40C from lowest to the hottest core. I think the main reason is the room temp. I'm living in a tropical country with average temp is 32C. What do you think? Is it too bad ? means is there a fault in my Cooler (H100i)?

 

[ihog]

http://www.overclock.net/t/1291703/ivy-bridge-overclocking-guide-asus-motherboards

Your idle temps are normal for your room temp.

 

[coastie65]

Yeah, the ambient ( Room ) temp will have an effect. At 32C Room temp, your Idle temps are good. As a rule, if the temps get too high, it will shut down anyway to protect itself.

 

[amilatc]

Hi all,

I live in a tropical country where the average temp is about 28~32C. So I think there is nothing I can do for the idle temp. And I think the other reason for high temps at idle is the FIXED Core Voltage. Well I don't care about the power consumption at this Core voltage unless it is harmful for my CPU with more Voltage and Heat.

So is this fixed core voltage and temp OK or do i need to shift to offset mode?

This is the minimum core voltage (1.208v; achieved with fixed Vcore 1.200 and Ultra high LLC) that maintains a stable system at 4.3GHz with 12hours Prime95 for me. And at Core voltage of 1.200 in CPUz (achieved with fixed Vcore 1.190 and Ultra high LLC) it survived only 3 hours of Prime 95. So I don't think that I have a the best CHIP out there. Initially I wanted to OC it for 4.5GHz. But I personally prefer to maintain CPU temp at load under 80C. So I think this is the maximum I can do.

But If you guys have any more suggestions to improve my settings please let me know. And if possible please suggest a way to OC it for 4.4GHz with core voltage at load below 80C (or 82C)

And please let me know whether I need to run more tests to ensure stability of the CPU such as Prime 95 Blend or Intel Burn Test.

Thanks

 

[coastie65]

Hi, The Voltage looks good. Not sure of what the max is on the IVY, but it is 1.275 on the Haswell. Yeah, the chips will vary. Your Idle Temps that you posted looked good. The Thermal Compound application can make a difference on the temps as well. Too much and you essensially insulate the CPU and there is little to no heat exchange, causing a heat issue. Too little, and you have same problem in that the heat exchange is not as effective, causing higher temps. Getting back to the CPU, I have seen two of the very same CPU's OC'd. One didn't take OCing all that well and couldn't get to much out of it. The other one was just the opposite and OC'd quite well.