Overclock i7-8700k Blue Screen

Indivision · Jun 13, 2018

Hello, I am struggling with overclock my 8700k to 5ghz, it gives blue screen CLOCK_WATCHDOG_TIMEOUT and I am not sure why, I use ASUS prime-a z370 updated to latest bios update.

For Voltage I use 1,35 I tried up to 1,38 and still same
Calibration Line tried from 4 to 6
Up to 140% receiving voltage to CPU
SVID disabled
Multicore Enhancement Disabled
for cache I tried with auto and with 42

Still blue screen, my temps are around 69-80 degrees, my processor is not delided. When I do stress test its all fine, no blue screens, no errors. When I play battlefront 2 is ok, but when I play battlefield 1 or league of legends or cs go bam Blue screen....

Please if someone can help me.

Thanks

SgtScream · Jun 13, 2018

Have you confirmed that your system doesn't blue screen with no overclock, when playing those games?

Indivision · Jun 13, 2018

SgtScream :

I'm on 4.7 now with 1.25 voltage and it works fine for the last week no issues, all perfect.

SgtScream · Jun 13, 2018

At those OC settings above, are you able to reduce the multiplier enough so the bluescreen does not replicate? If the multiplier is lowered and instability still occurs it may be another setting altogether.

luckymatt42 · Jun 13, 2018

What's your power supply? Could be running into power issues with that kind of voltage.

dextermat · Jun 13, 2018

You might not be able too unless you use water cooling and more voltage.
Not all cpu are created equal and the cpu you have might not be able to do it.

Indivision · Jun 13, 2018

luckymatt42 :

I have

MOBO - Asus Prime-a z370
PSU EVGA 750G2
CPU i7 8700k
CPU FANS - I'm using EK S240 (Corsair 2400rpm)
CASE FANS 5x corsair 1500rpm
RAM 16gb 3000 MHz
GPU MSI GTX 1080 ti Gaming X
SSD Samsung 960 evo 250gb
SSD Crucial 525 gb
HDD 1tb WD black
CASE Corsair 570x Crystal

Indivision · Jun 13, 2018

SgtScream :

On 4.9 ghz t worked fine for 5 days. but then blue screen on the fifth ... with this settings calibration line 4 and 5 and 1,35 V

Indivision · Jun 13, 2018

There is a mistake in the loop which I done I put in in outlet and outlet to inlet to the CPU block but I don't think this is the case because still my temps are not going higher than 80 degrees is worst case scenario. So in next few days I am going to re do the loop and I will fix this issue. But still as I said I don't think this issue can cause the blue screen. what do you think ?

MCMunroe · Jun 13, 2018

Not all i7s got easily to 5Ghz also they are a bitch to cool under any kind of sustained load. Also you might have to try upping the voltage to 1.40v

Silicon Lottery says

CPU Multiplier: 50
BCLK: 100.0
CPU Vcore: 1.400V
AVX Offset: 2
As of 6/08/18, the top 86% of tested 8700Ks were able to hit 5.0GHz or greater.

This CPU includes our delidding service! Factory thermal paste underneath the IHS is replaced with Thermal Grizzly Conductonaut. Depending on the workload, this typically lowers peak core temperatures anywhere from 15°C to 25°C.

SgtScream · Jun 13, 2018

What bios version is your motherboard on?

Indivision · Jun 13, 2018

MCMunroe :

Btw now I just received my thermal grizzly Kryonaut and i am going to replace my old paste. I am looking for delid tool but the only one available here in UK cost 80+ pounds which is ridiculous

Indivision · Jun 13, 2018

SgtScream :

Version 0616 ( PRIME Z370-A BIOS 0616
1. Improve OC performance
2. Improve system stability

i just saw that there is newer one from two days ago

Version 0805
PRIME Z370-A BIOS 0805
Intel New ME Update, Improve Stability.

and new chipset version

Management Engine Interface
Improve system stability.

MCMunroe · Jun 13, 2018

I delided and Kryonaut with a 3D Printed plastic tool and a hand vice.
Temps did drop 15-20F as expected.

(We used the old CPU as the test subject)

Indivision · Jun 14, 2018

MCMunroe :

hmm yea but I where I am to make 3d printing I better buy from ebay. there was offer delid mate 2 with grizzly liquid metal for £77

SgtScream · Jun 14, 2018

If you're running a stress test and there's no bluescreen, but the only bluescreens that happen are during gaming. Heat is not the issue.
Unless inside case temps are higher because of the graphics card. Case ventilation should be addressed if this is the cause.

Indivision · Jun 15, 2018

SgtScream :

65-70 degrees Celsius on the GPU on 98% usage in battlefront 2 , but the blue screens come with cs go as well and league of legends when the card barely use 10% of its capacity

SgtScream · Jun 15, 2018

Indivision :

SgtScream :

65-70 degrees Celsius on the GPU on 98% usage in battlefront 2 , but the blue screens come with cs go as well and league of legends when the card barely use 10% of its capacity

What version driver?

Indivision · Jun 15, 2018

SgtScream :

I need to check later when I am at home but I just updated it few days ago so its the newest one.

Btw do you think I if I uninstall NVidia experience I will get better fps or better performance in games ?

SgtScream · Jun 15, 2018

Indivision :

SgtScream :

I need to check later when I am at home but I just updated it few days ago so its the newest one.

Btw do you think I if I uninstall NVidia experience I will get better fps or better performance in games ?

The bluescreen only happens with an OC correct?

4Ryan6 · Jun 15, 2018

Indivision :

You must be using some type All In One cooler which you do not list?

my temps are around 69-80 degrees

Under what load? Prime 95 or Gaming?
Not bad for P95 not great either, but if that's your gaming temperatures they suck!
You can lower temperature by running your memory at the spec'd speed of the 8700K which is 2666mhz if you're running at 3000mhz you're overclocking your CPU memory controller and adding extra heat, that's great if you have the cooling for it.

Indivision :

but I don't think this is the case

You are running the coolant backwards and defeating the design of the water block, there's a design reason it says inlet and outlet! Get that routed properly, ASAP!

My 8700K is overclocked all cores to 5ghz and my P95 vs 26.6 highest core load temperature is 51c

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