Hi, I just got a 8600k and wondering what is the safe temp range for it during OC.

Now i'm 83c max on Prime 95.

Oh ok thx.

Can describe more about experiential increase of vCore due to heat ? Thanks

Hmm, you are right..Thx

The only way for me to keep under 80c is with MasterAir Pro 4 is using 1.18 @ 4.4 GHZ on my 8600k @77c. I guess that cooler is not suitable for high OC.

Tried 1.23 v only can stable 4.6 GHZ but 85c

Not sure but here's my voltage settings.

That one need wait $$$ come in first haha , thx for advice.

Ok thx for the recommendation, If need water cooling I guess need change casing too, still using old ATX from the 2009 haha.

Just wondering, how long do AIO lasts ? As in before need replacing since I guess u cant change individual parts which is damaged.

I passed Small FFT for 12 hours but Blend failed in 1 hour.

Most likely suspect is the RAM not stable ?

I see, I set XMP and downvolted my CPU abit haha. Want to keep the fan noise down.

Now slowly increment back the voltage.

1.8v failed at 1 hour, 1.9 failed at 8 hours, now trying at 2.0.

This post has been edited by king99: May 4 2018, 10:05 PM

eh typo

1.18 , 1.19 , 1.20

Added a fan to my GIGABYTE Ultra-Gaming 2.0 VRM, temps went from 90c to 75++c. Now only dare to push it up.

Now 4.5 GHZ with max load temp of 84c during prime small FFT. This temp should be ok right ? Resit and repaste the Masterair 4 with multiple diff thermal paste also this temp, now on Kyronaught. I guess this cooler cannot <80 oc haha.

This post has been edited by king99: May 11 2018, 09:49 PM


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Yeah I saw the video. Sadly I got it before the new video is out. Got it last month.

Well at least I am not aiming for 5.0 Ghz for now. 77c for the VRM seems acceptable for my case I think.





This post has been edited by king99: May 13 2018, 12:01 AM

Hmm, just wondering if this is a software bug or really hardware issue.

When I stressing PRIME 95, sometime HWinfo shows the vrm temps will show the max recorded temperature of 115c when I am away.

But when I stare at the reading at full load it reads 78c to 80c and never go pass 90c.

Sometimes I see unrealistic reading such as 2c Motherboard temps and negative reading.

Oh i see.

Btw, I tried putting a fan on the back of my motherboard to cool the rear VRM and CPU...to my surprise.....VRM dropped by 7c and CPU by 1c. Never expected this result.

I read most ppl say 1.4 V is the max safe for a Coffee Lake. Just want to clarify is that the one set in BIOS or the one displayed in CPU-Z/Core temp.

In BIOS I set 1.320 for 4.7GHZ, but in CPU-Z/Core temp only show 1.25 average when full load. So...the 1.4V limit is in the bios or in Windows ?

Thanks.

Found a buyer for my Ultra Gaming 2.0, he is gonna use it for a non-k processor which ia suitable.

Any motherboard can recommend ? Budget around 1.2k. Eying the Gaming 7 but reports on the vrm temps is like gambling.

Some say good vrm never pass 60c. Some 100+c....

Will share sometime over the weekend haha, out of town now.

Basically I use zip-tie and hang it over my tower cooler using the cooler's 2nd fan bracket.

This post has been edited by king99: Jun 1 2018, 07:02 PM

Better version. Took and old gc and slice it to make mount for fans.


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Ah sorry, uploaded using phone, maybe got issue there...this should work now.


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I have some weird issue now.

1) Gigabyte Ultra Gaming 2.0 + Corsair PSU, whenever I stress Prime 95 randomly it will cause a coil whine near the top vrm area. Other then Prime 95, didn't heard it.

2) Maybe my Motherboard have not good components, sold it to a friend who building a new PC. Got a Z370 Gaming 7 and guess what, the Coil Whine is still there !

3) Maybe its' PSU, got an EVGA PSU and still coil whine is there. Both PSU tested are 750W. Tried different power cable as well...

4) Maybe its GPU, so I removed my GPU and use the intel HD and still its there.

I can live with it as it only appear during Prime 95 as far as I know. Just annoying when I am stress testing. Wonder what could be causing this ? Do you think it's the motherboard problem ? Bad luck 2 in a row ? Both are new btw.

Even at stock speed the whine is there...I tried Real Bench and Prime without AVX and there is no audible whine. I guess the trigger is AVX ?

Hi, if I pass small FFT 24 hours in Prime v29 but fail blend within 30 minutes @ 2.7 Ghz, that leads to an unstable memory ? 8600K + Gaming 7.

It is stable with XMP 3000MHZ @ 2.6 Ghz but not at 2.7GHZ

I guess I need to increase VCCIO and System Agent Voltage ? Wondering what is the safe voltages for it..