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Question i7-4770k after delid results, any good?

romeyourboat19

Junior Member
Jul 10, 2020
1
1
36
Hi guys im new to overclocking, i delidded my i7-4770k finally after 6 years.

Long story short, my Asus Maximus Formula VI smoked up, prior to that i still remember using prime 95 last month hitting 95c @4.0ghz 1.221V auto overclock then shutting down automatically when near 99c, not to mention it also messed up my kraken x60 (6 y.o) which i used in this tropical country averaging 36-40 between regular days and summer.



Luckily someone is still selling new motherboards here, i bought ASRock Z87 OC Formula for around $136 with 1 year warranty. ($110 for 2nd hand 3-4 y.o h81 boards).



Delidded my i7-4770k using Coollaboratory Liquid Ultra then adding nailpolish to the chips beside the die and reseal using RTV Black silicone (leaving 1 side without RTV so pressure and heat can escape)



My kraken x60 is running at max fan and max pump speed based on the sound with error "Device Descriptor Request Failed", the water inside of it seems to be a lot less than before, the weight is significantly lighter than before.



I overclocked it with this guide by Tech YES City

View: https://www.youtube.com/watch?v=7mLP3pGvnDU&t=2s


I followed everything except that I used override mode than adaptive mode because my voltage automatically ramps up to 1.331V regardless if the clock is between 3.9-4.2Ghz.

I Override it and set the clock multiplier of CPU to 42 then tuned lowest of 1.170V and Cache to 41 then tuned lowest of 1.145V I did ran Prime 95 and Aida64, i forgot to save a screenshot of each so i just made 25-30mins of each.



no case fan is installed, my case is NZXT Phantom 820, only the kraken x60's fan, r9 290x MSI Gaming 4G's fan and PSU's fan is working @25c controlled ambient TEMPS



Ram is corsair vengeance pro 16gb (8x2 1866mhz) used XMP Profile.



My temps Maxed out at 58c and 57c on Prime95 and Aida64 respectively. idling at 25-28c.

Did i overclocked it right? are my temps and voltage good? people are talking about silicon lottery and to be honest idk any of it because i just got into overclock. Let me know about this and any suggestion will be open! (specially safe voltages and temps!) Thank you!

Aida 64 results
Prime 95 results
 

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DrMrLordX

Lifer
Apr 27, 2000
17,258
6,258
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It's an old CPU, so may as well delid/relid. I'd be more worried about your Kraken if it's leaking.

4.2 GHz is kind of . . . low for Haswell? Typical 4770ks hit 4.5 GHz if memory serves. If you're happy with it you may as well stay there, since we have no way of knowing how much longer that AiO is going to last before it craps out. Temps are pretty low though, so you're doing well there!
 

ehume

Golden Member
Nov 6, 2009
1,511
73
91
I used to run a non-delidded 4790k at 4.4GHz for testing heatsinks, so I concur that a delidded 4770k should be able to run at 4.5GHz.
 

Arkaign

Lifer
Oct 27, 2006
20,567
1,053
126
I had one with a mediocre AIO (I dislike them for many reasons, but it was a secondhand rig), and it was 4.5Ghz. I got my Chromax DH15 and pushed it to 4.7Ghz just to see how it would fare. Non delidded 4790K.

Note, the 4790K is Devil's Canyon, basically a more mature Haswell. But I imagine a quality delid with liquid metal would at least bridge that gap. Looking at those temps, I would start at 4.4 and bump up a little. I'd be almost shocked if you couldn't hit 4.5 at relatively low voltage.
 

clemsyn

Senior member
Aug 21, 2005
425
27
91
I have the same CPU (4770k) that I delidded last year. I'm idling at around 28-30 but I locked my voltage at 1.3 to get 4.5 stable. At 4.5 OCCT my max temp is around 69 degrees. I can hit 4.6 at 1.41v but my temp increases to 76 (I prefer to keep it below 70) with OCCT. I suggest increasing your voltage a bit and bumping it up to at least 4.5ghz. Make sure your temps don't increase to 75 max during stress testing. IMHO temps>voltage in CPU degragation. BTW, you could also increase the Boot strap to overclock it, I have tried 125 and 166 with great success but I don't see any noticable difference from 100. Make sure you OC your memory too. My ddr3 went from 1600 (1.45v) to 2400 (1.55v).
 

ehume

Golden Member
Nov 6, 2009
1,511
73
91
As owner of both 4770k and 4790k -- both still in daily use -- I will note that at the time, folks noted there was more intrachip variation than interchip variation. Couldn't prove it by me: my 2d 4790k was only 100k faster than my 1st, and it was made a year later.

@clemsyn - you and I were typing at the same time. I agree with your recommendation as to Vcore. I seem to recall an Intel engineer recommending keeping Tcore under 80c. I tried with Linpack+AVX2 and found that my Gflops were better with Tcore up to 80c, and drop when Tcore was above that. Below that, I would see a steady rise in performance. from then on I have recommended keeping Tcore at 80c or less.

Edit2 - I also seem to recall from Lynnfield days that the max recommended Vcore was 1.4v, so I would not recommend going past that for daily use; recalling that normies expect computers to last 10+ years these days.
 
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clemsyn

Senior member
Aug 21, 2005
425
27
91
As owner of both 4770k and 4790k -- both still in daily use -- I will note that at the time, folks noted there was more intrachip variation than interchip variation. Couldn't prove it by me: my 2d 4790k was only 100k faster than my 1st, and it was made a year later.

@clemsyn - you and I were typing at the same time. I agree with your recommendation as to Vcore. I seem to recall an Intel engineer recommending keeping Tcore under 80c. I tried with Linpack+AVX2 and found that my Gflops were better with Tcore up to 80c, and drop when Tcore was above that. Below that, I would see a steady rise in performance. from then on I have recommended keeping Tcore at 80c or less.

Edit2 - I also seem to recall from Lynnfield days that the max recommended Vcore was 1.4v, so I would not recommend going past that for daily use; recalling that normies expect computers to last 10+ years these days.
Before delid, 80c was easy to hit with just an OC of 4.0 on my 4770k :) I prefer to keep my temp below 70 because I plan to keep this for a few more years. I just tested the OP voltage and frequency on my CPU and my system crashed at 1hr and 12 mins OCCT so I think his CPU can hit 4.5 on a lower voltage than mine. He might even hit 4.6 below 1.4v.
 

Magic Carpet

Diamond Member
Oct 2, 2011
3,335
118
106
Haswell is most power-efficient at around 3.1 Ghz on all cores. If you don't need the extra performance OC provides, might as well leave it at stock clocks.

If you're happy with it you may as well stay there, since we have no way of knowing how much longer that AiO is going to last before it craps out.
This too.
 
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