High temps and prime95 hardware errors after delid

Angeloa

Angeloa

Angeloa

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Joined
30 Jun 2018
Posts
15
Hello Guys

Before my delid is was never able to reach 4,8 or higher stable at even 1,375vcore. LLC 1.
Yesterday I delidded my 8700K with conductonaut & krytonaut thermal paste.

Prime 95 results:

5ghz even at 1,375 -> hardware fail
4,9 same
4,8 same

I have no clue why this is happening...

On 4,6 ghz my pc is stable and idle temps are 35 windows - gaming (csgo) around max 60°. 1.225vcore..


Setup:
Masterbox Lite 5 rgb
8700K
Z370 EXTRME 4 ASROCK.
h80i V2 (rad + 1 noctua cooler around 1500rpm)


Normally I should be able to get 5ghz at 1.4vcore easily, but even at low ghzs prime95 gives fatal errosr.
I heard prime95 is not that good to test overclocks so what is my option now to test and achieve higher clocks..

I also have a feeling I have maybe used too much conductonaut and didnt let it try enough (+- 1hour) with loctite from rockit delid tool website.


Any advice?
 
1. Leave glue to dry overnight unless it's catalysed (hardens by mixing two parts)

2. Should be ok unless you got Conductonaut on some components. Is it hotter than before? Cooler?

It's not clear whether you ever could reach 4.8+GHz. Did you have stable overclocks before that you can't reach now?
 
LuckyBenski said:
1. Leave glue to dry overnight unless it's catalysed (hardens by mixing two parts)

2. Should be ok unless you got Conductonaut on some components. Is it hotter than before? Cooler?

It's not clear whether you ever could reach 4.8+GHz. Did you have stable overclocks before that you can't reach now?
Click to expand...


1. I used loctite super instant glue from rockit delid tool website, I only did 1 hour dry with the delid tool (lock it up)
2. Maybe indeed I have used too much Conductonaut, I'll try to reapply it tonight.
3. People say my h80i V2 is not good enough to reach good overclocks? I think thats ******** tbh.
4. No I never had 4,8 stable, in prime95 always hardware error. But is that a good program to check overclock?
 
Well if you can make a CPU unstable using any program, it's not 100% stable. I'd use Prime95 for stress testing/heat generation (use the older version, I think 26.6, AVX instructions hammer the CPU). OCCT is regarded as good stability testing.

It's possible your chip is simply limited by something other than heat. I'm not so familiar with overclocking newer architectures, but maybe read up on the finer details to see if you're missing some other setting that will stabilise it.. If it's staying near 60 degrees then your cooler is doing a great job.

Point of interest, super glue dries when it gets excluded from air (when you push the parts together) and will stay wet for hours/days otherwise, So any excess glue won't set right away but will sit there giving off fumes. But I don't think this will have contributed to any issues with your CPU.
 
LuckyBenski said:
Well if you can make a CPU unstable using any program, it's not 100% stable. I'd use Prime95 for stress testing/heat generation (use the older version, I think 26.6, AVX instructions hammer the CPU). OCCT is regarded as good stability testing.

It's possible your chip is simply limited by something other than heat. I'm not so familiar with overclocking newer architectures, but maybe read up on the finer details to see if you're missing some other setting that will stabilise it.. If it's staying near 60 degrees then your cooler is doing a great job.

Point of interest, super glue dries when it gets excluded from air (when you push the parts together) and will stay wet for hours/days otherwise, So any excess glue won't set right away but will sit there giving off fumes. But I don't think this will have contributed to any issues with your CPU.
Click to expand...
Ye but its strange prime95 gives even hardware errors at 4,6. Thats not normal... While my CPU is running perfectly in games, never bsod or freeze.
I think my settings are fine, I should be able to reach 4,8 anyway stable. All 8700k's get 5 with 1.4vcore.

I will try to do everything over and see if its better than.

And whats now the best program when I did an overclock to check stability? And what should be my max temp on programs like prime? IT should be like 70 or 90 (delidded)
 
Angeloa said:
Ye but its strange prime95 gives even hardware errors at 4,6. Thats not normal... While my CPU is running perfectly in games, never bsod or freeze.
I think my settings are fine, I should be able to reach 4,8 anyway stable. All 8700k's get 5 with 1.4vcore.

I will try to do everything over and see if its better than.

And whats now the best program when I did an overclock to check stability? And what should be my max temp on programs like prime? IT should be like 70 or 90 (delidded)
Click to expand...

There are two methods with overclocking IMO, fully stable in everything you throw at it, or stable for all your workloads. Prime 95 is very stressful and comparing it to CS:GO or other games is not at all comparable. Newer version of Prime also use AVX instructions which make things even hotter and stressful to the CPU.

With that said, I would take a look at other settings, cranking up the vcore is not the only thing when trying to achieve stabbility, may need to tweak CPU voltage, LLC etc.

Personally, with my systems day to day, I tune them and as long as they pass all my workloads I can crank up the overclock with similar voltages much higher then I would if I was to make it price stable.
 
Radox-0 said:
There are two methods with overclocking IMO, fully stable in everything you throw at it, or stable for all your workloads. Prime 95 is very stressful and comparing it to CS:GO or other games is not at all comparable. Newer version of Prime also use AVX instructions which make things even hotter and stressful to the CPU.

With that said, I would take a look at other settings, cranking up the vcore is not the only thing when trying to achieve stabbility, may need to tweak CPU voltage, LLC etc.

Personally, with my systems day to day, I tune them and as long as they pass all my workloads I can crank up the overclock with similar voltages much higher then I would if I was to make it price stable.
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Ye I never play heavy load games, only CS:GO and Fortnite. That doesnt take so much power from my pc. I just want it to be stable for my workload.

I will re apply the delid and check after.

What do you suggest me to start with? 5ghz at 1.350 and go up to max 1.4? I think max temp for cs:go-fortnite with a delid should be 70° ?

Thankyou already for the usefull info!
 
Why LLC level 1? You must get massive vdroop off your set vcore?

I run the same setup (rets of spec in sig) and I'm at 4.8Ghz @ 1.265v with LLC Level 6 gives me 1.280v under full load in Prime 96 (V26.6).

1) What is your vcore under full load in prime? Use HWMonitor, CPUZ or even HWInfo. That vcore seems high for 4.8Ghz and your LLC is to low.
2) What version of Prime are you using? The newer version has AVX, which runs 10*c or so hotter, better to use 26.6.
3) You h80i V2 is a really small AIO and the 8700K is a hot chip! My 8700k hits 72*c under Prime 95 for an hour of Small FTT's. Room ambient of 23*c, Inside case(Mainboard?) 24*c, and that's with a massive NH-D14...which will blow your small h80i V2 away tbf by a good margin.
 
C6ckneyGeezer said:
Why LLC level 1? You must get massive vdroop off your set vcore?

I run the same setup (rets of spec in sig) and I'm at 4.8Ghz @ 1.265v with LLC Level 6 gives me 1.280v under full load in Prime 96 (V26.6).

1) What is your vcore under full load in prime? Use HWMonitor, CPUZ or even HWInfo. That vcore seems high for 4.8Ghz and your LLC is to low.
2) What version of Prime are you using? The newer version has AVX, which runs 10*c or so hotter, better to use 26.6.
3) You h80i V2 is a really small AIO and the 8700K is a hot chip! My 8700k hits 72*c under Prime 95 for an hour of Small FTT's. Room ambient of 23*c, Inside case(Mainboard?) 24*c, and that's with a massive NH-D14...which will blow your small h80i V2 away tbf by a good margin.
Click to expand...

So maybe I should first look at my overclock settings before doing the delid again? Probably I did it good?

I will post tonight what you are asking for. I should go for LVL 6 LLC?
Im using newest version, I'll download 26.6
Ye I know the AIO is not that good, but should be good enough to cool under 70 for games like cs:go at 5,0ghz no?

Im thinking about a custom CPU cooler loop. Not worth the money to buy again AIO for over 150$ with bigger rad
 
LLC 6, if I mess with LLC it'll fail. Currently running 5ghz 1.3v delidded.

My first attempt at delidding didn't go well because I didn't remove all of the glue and didn't apply liquid metal to the inside of the IHS. Second time knocked 20c off.
This is on an H115
 
I re-applied the delid and glue and those are the results at 1.225 - 4.4

Its really hot in Belgium atm (around 30° so I think in normal conditions I should have -5 C or smt.


I dont know if you can see the image?

otherwise -> https://imgur.com/a/PbNs2Af
PbNs2Af
 
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Ingame (CSGO) I have max 60... I think that still a lot but this is due my h80i v2, which isnt enough for the 8700k
 
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Angeloa said:
I re-applied the delid and glue and those are the results at 1.225 - 4.4

Its really hot in Belgium atm (around 30° so I think in normal conditions I should have -5 C or smt.

Ingame (CSGO) I have max 60... I think that still a lot but this is due my h80i v2, which isnt enough for the 8700k
Click to expand...

A 120mm radiator is not recommended for overclocking the 8700k.

8pack (overclocker employed by OCUK) did a writeup: https://forums.overclockers.co.uk/t...-5ghz-and-above-available-from-ocuk.18795262/

For his demos for before/after delidding he used a 240mm radiator cooler and the results looked good.

But gaming at 60 degrees when your room is 30 isn't bad.
 
Hotwired said:
A 120mm radiator is not recommended for overclocking the 8700k.

8pack (overclocker employed by OCUK) did a writeup: https://forums.overclockers.co.uk/t...-5ghz-and-above-available-from-ocuk.18795262/

For his demos for before/after delidding he used a 240mm radiator cooler and the results looked good.

But gaming at 60 degrees when your room is 30 isn't bad.
Click to expand...
Ye I think I will do a custom loop for my CPU.

Outside its 30, in my room about 22° I think.

I guess I'll leave the delid and overclock when I have better cooling
 
idle temps mean nothing. It's the load temps you want to be worrying about.

The only thing i can suggest is that speedstep is turned off so its just running at full speed 24/7 rather than down clocking dependent on applications/load etc.

For comparison mine runs at around 40c idle, 70c maximum at full load in this weather 30c ish in the UK. Thats at 1.425v 5.1ghz.

With regards to application of conductonaut it really needs as little as possible. rice grain or smaller and manually spread over the entire die.
 
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