I7 4770k 4.5 GHZ

[ferico87]

Hi,

I am trying to get my i7 4770k to 4.5 ghz. I am using a Zalman CNPS9900Max-B. Vcore is set at 1.25V.

20 minutes Prime95 smallffts run no error. Max Temp was 92C.

20 minutes Aida64 system stability run everything checked except system disk no error. Average temp 75 max temp 94C. No throttling reported.

Full CPU mark and passmark run no error.

Now the problem is if I change the Vcore to adaptive mode I get BSOD BCCode 124.

Why is Aida64 average temp so low even though I thought it was supposed to heat up the CPU more?

I played a whole crysis 3 campaign everything on max with my gtx 780 and no error occured so can I assume 4.5GHZ 1.25V is stable?

Why does adaptive voltage fail while constant voltage does not?

Which test is most reliable to test CPU stability? There are so many of them and google doesn't really help espcially when it says aida64 is supposed to stress cpu more but the temp was lower than prime95 when I ran the test.

 

[Eximo]

Pretty high peak temperatures, mine didn't seem to break 81C on air and peaks at 84C on an h80i. Your chip seems to be above average. Saw a few posts that couldn't get past 4.1.

I couldn't get my chip to crash using Prime, AIDA64 only took it a few seconds at 1.2volts to crash it.

Any configuration on mine at 4.4Ghz, regardless of voltage, would blue screen during boot. Even tried messing with BCLK to get an inbetween, but it would have none of it. Perfectly stable @ 1.237 @ 4.3 though.

 

[ferico87]

Yea, I was pleasantly suprised because I followed the guide "3 part guide to overclokcing i7 4770k" and they said try putting the voltage at 1.2V, 4.6GHZ and if your chip gets to the the bios then it is above average. Mine did that but couldn't get into windows desktop. I was using it at 1.2V 4.5GHZ for about a day and it was stable for ~20mins on prime 95 and AIDA64 but crashed on Passmark all tests. My only problem seems to be the temperature. I could keep it peak temperature around 84 if I do 1.25V 4.4GHZ. Have not tried lowering the voltage at 4.4 however perhaps I could get voltage a bit lower.

 

[Intel God]

Pretty high peak temperatures, mine didn't seem to break 81C on air and peaks at 84C on an h80i. Your chip seems to be above average. Saw a few posts that couldn't get past 4.1.

I couldn't get my chip to crash using Prime, AIDA64 only took it a few seconds at 1.2volts to crash it.

Any configuration on mine at 4.4Ghz, regardless of voltage, would blue screen during boot. Even tried messing with BCLK to get an inbetween, but it would have none of it. Perfectly stable @ 1.237 @ 4.3 though.

Whatis your CPU input voltage set at?

My settings for 4.8ghz are as follows

48X multi
48x cache multi
1.42v vcore
1.35v cache voltage
1.9v vrin - CPU input voltage

 

[Buzz247]

Adaptive voltage is part of speedstepping and green power tech. For stability this should be turned off when overclocking, and set to a consistent tested voltage that allows oc stable

 

[Eximo]

I don't think I have the thermal room for pushing it past 1.3V, I did give that a whirl and it wouldn't fire up at @ 4.4. I didn't mess much with the other voltages. I am still quite satisfied with it.

Not a vast improvement over my old i7-950, but I bought it more for the motherboard and it's shiny Sata III ports.