Overclocking i7-4770k problem?

[tjiax1]

Using asrock z87 extreme4 with h100i to overclock i7-4770k but cannot achieve 4.4ghz without hitting temp of 90+. idle temp is 40. What is the problem?

 

[muddle]

Haswell is the problem.

 

[Ark Law]

Some people cannot even hit 4.2

 

[Kairos]

Haswell is the problem.

And Haswell Refresh is the solution.

 

[tjiax1]

any solution? now trying 4.2ghz with 1.145v stress testing

 

[royfrosty]

Haswell issue with the TIM and the IHS has poor contact is one thing. The silicon lottery is another, to improve the poor contact the only way to get thru this is to delid it.

Google it.

BUT it does not really improve in terms of getting more ghz bumps. It however do helps in reducing the overall temperature of around 78-82deg once you remove the IHS and reapply a new thermal paste.

After removing mine I also realize across the 4 cores it is on stable temps.

 

[Ark Law]

any solution? now trying 4.2ghz with 1.145v stress testing

Best solution is next time don't bother with OC anymore

 

[royfrosty]

Some people cannot even hit 4.2

*S*ahem*h*aheeermmmm*a*ahemm*d*ahem*o*aheeerm*w

 

[muddle]

Delid.

Or replace with 4790k.

 

[Ark Law]

*S*ahem*h*aheeermmmm*a*ahemm*d*ahem*o*aheeerm*w

I found my old note, 4.2 @ 1.060v, 88deg after P95 10mins before trying another setting. That was with Arctic 11LP cooler

 

[tjiax1]

any other 4.2ghz setting?

 

[MacClipper]

cannot achieve 4.4ghz without hitting temp of 90+

4.4ghz - at what vcore setting?
90+ - at doing what?

 

[tjiax1]

4.4ghz at 1.25v. 90++ temp doing stress testing.

 

[MacClipper]

At the above speed@vcore, the high load temps are expected if you are doing anything to do with AVX1 (or worse AVX2) instructions even over mildly prolonged periods.

btw, prolonged synthetic stress testing with AVX apps eg. IBT, LinX, Prime95 does not translate into real life load overheating. Not much pointing delidding, pulling your hair out or spending loads of $$$ trying to cool something which does not happen in the daily usage of almost all people.


HTH

 

[tjiax1]

will not try delidding but wish to have a staple 4.4ghz.

 

[Gattberserk]

will not try delidding but wish to have a staple 4.4ghz.

Abit wasted though, you could have gotten 4790K which is 4.4GHz out of box.

 

[Kairos]

Abit wasted though, you could have gotten 4790K which is 4.4GHz out of box.

With vcore < 1.2v

 

[royfrosty]

Same cooler used in my current test bench.

H100i

MSI Z97 MPower MAX AC

Delided i5-4670k with just a normal MX4 Thermal paste.

OC at 4.5ghz with actual voltage of 1.34v measured from multimeter.



Shaving off at around 4-5deg differences.

If I set it to 4.4ghz at 1.285v with MX4 thermal paste I could get at 83deg.

With that said. Delid does help reducing the thermal heat, and probably with the help of good Thermal Paste such as CLU which is conductive would further reduce the heat output to about 7Xdeg on load.

 

[dreamer_toons]

I can't get a stable system at 4.4Ghz too; crashes at either startup or after few minutes.

Currently doing at 4.3Ghz. However, system is a heavy paper weight at a corner coz my Swiftech AIO cooler is down and pending for RMA.

 

[Kairos]

I can't get a stable system at 4.4Ghz too; crashes at either startup or after few minutes.

Currently doing at 4.3Ghz. However, system is a heavy paper weight at a corner coz my Swiftech AIO cooler is down and pending for RMA.

Dump your 4770K and get DC.

Confirm can get 4.4GHz, vcore <1.2v