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Old 05-02-20, 04:29 PM
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CalVic CalVic is offline
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Less is more...


So, I haven't been around in a long while. According to the site "You last visited: 26-11-18 at 01:17 PM". Long story short, my life has been -turned upside down and my system has been powered off for over a year.

That was until Monday. Funnily enough, the system failed to boot. Had a few issues with the overclock that was applied but was able to get that sorted and reinstalled Windows.

However, I've had a major issue with cooling on this machine and I have been misdiagnosing it for years. Essentially, 4790k 4.6Ghz @ 1.23v was absolutely cooking at 100c on a H110i GTX under RealBench and no amount of thermal paste and re-mounting the block would sort it. The chip would crash every so often under gaming and I said to myself this chip is approx 5 years old and has been 'clocked since day one. I figured the TIM between the IHS and die had become crap and that I was to delid.

Until I decided to throw some reverse psychology in regards to the voltage. My nominal voltage under stock clocks is approximately 1.088v, with turbo adding around to a total of 1.12v give or take.

Decided to boot 4.6Ghz at 1.15v and temps under full load were 69 - 74c and funnily enough stable as for over 2 hours, compared to 1.23v insta BSOD.

I suspect that this chip was binned at a lower voltage to the average, and is why my temperatures do not align with those at a higher voltage. Here's me having instability issues and pumping more voltage into it and having major issues with cooling at circa 1.22v+ on a H110i GTX.

When in actual fact it needed way less!

Funny how multiple years of trying to work it out and then I leave it for a very long time and solve it shortly after.

| 4790K 4.6Ghz @ 1.15v / Uncore @ 4.6Ghz | Avexir 16GB 2133Mhz CL9 @ 2800 CL11 | Asus Maximums VII Formula |
| Gigabyte G1 980 GTX @ 1530/7900 | Corsair 4000X | Corsair H110i GTX |

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Old 21-02-21, 05:54 PM
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hotrob hotrob is offline
Join Date: Jan 2016
Location: Ottawa, Ontario, Canada
Posts: 26
Gone are the days of "just keep dumping more voltage into it until it's stable", and that makes things a lot more interesting in some ways.
Phanteks Evolv X| x570 Taichi | r5 3600 (bronze sample, [email protected] on a good day)| Dark Rock Pro 4 | Vega 64 Strix | 4x8 Viper Steel 3800 16-16-16-32 | Corsair AX1000 |
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