Thanks sifu
Gonna get a better board to test it out

Okay. Cause saw the link u shared
Many of the chip stress test without AVX haha
But i will stick with the AVX

To all 8700k users, which motherboard would you suggest aside from Asrock (i know they are good boards)?

Asus

https://www.overclock.net/forum/attachment....achmentid=99753 you can get some ideas here

hows ur z370-f? the vrm isnt that on par even with extreme 4. Asus boards are really pricey for me. I guess I might end up getting asrock.

heh it isn't the best board out there but it was the only decent one available when the 8700k launched

i've had several bumps maintaining 5ghz and the biggest one is the fact i didn't delid the cpu

I feel like doing it now tho

So far you are satisfied with the board capability. The better brother would be the maximus x hero with premium quality VRM and Mosfet Chokes etc. That's really a premium board. ASUS UEFI is known to be user-friendly and I think you pretty much easily can overclock.

Hi!
Came out of retirement (stop OC'ing since socket 1151) and got myself 8700K + MSI Gaming M5

Woah so many new features since last gone into the bios years ago lol, pretty cool really, with LLC can now be tuned specifically for example.

Managed to stabilize 4.8ghz @1.220v (in bios). A little bump in voltage in CPU-Z because LLC @ Mode 3.


Anyway about this AVX thing, it's not really necessary for stress test is it? Specifically Prime95, where you can disable it in local.txt.
And what's the point to offset it where in real application 0 AVX machines won't do extreme load like with all the stress test? Perhaps for Benchmarking purpose?
My system requires 3D rendering and heavy Photoshop usage, prefer to keep the clock fully optimize.

Temp is okay, maxed 75~ish Celsius with prime95 Small FTT with AVX disable, over 2 hours. Can do better when I get some liquid metal TIMs like Thermal Grizzly. Using 240 AIO cooling.
With AVX enable straight gone into 95C

For me, AVX is necessary to be tested as some of the software that I use and games that I play are using AVX instructions. Chrome and BF1 for example. I want to make sure that all my applications are running at the highest CPU frequency possible, without any reduced speed. Hence, I prefer to have AVX offset to be set at 0.

Also, your daily applications might not cause extreme load but stress test is about the worst case scenario and you could use it test your thermal capabilities. In this case, AVX offset can be used to reduce the CPU temp within your cooling limit.

For Prime95, rather than Small FTT it is recommend to use custom blend 1344K with the RAM capacity stressed up to 90-95%.

Are you using any Asus Z370 board?

no money to buy asus

Hi all sifu,
Idk if im doing the right thing or not . My first time using prime95



just assemble 8700k with maximus hero.

First i OC to 4.8 with 1.2V, run cinebench and prime95. all looks good. Then i tried 5.0 @ 1.2V --> BSOD


and finally i try 5.0 GHz @ 1.25V and run for few hours still no bsod. but the temp quite hight

[attachmentid=9992293]

Is this the right way to test the cpu?

This post has been edited by naqib0307: Aug 26 2018, 09:05 PM

Nice try but I could see that your prime95 at 5.0GHz is not stable (3 workers has stopped running) probably because of insufficient core voltage.
I'd like to guess the required voltage but first of of all may I know your stock VID? (clear CMOS and check the core voltage in UEFI)

oh you're right. I didnt even notice it

Here my core voltage after clear cmos.
[attachmentid=9992484]

1.104v, good chip you got there.
I'm guessing it needs about 1.296v for 5GHz OC.
Also use CPU Load-line Calibration (LLC) level 6 to minimize the load voltage fluctuation.

Is it okay to increase the voltage and use it for long term. Last night i change back to 4.8 @ 1.2V the temperature at 100% load looks good around 60+ . but for this 5.0 GHz @1.25 the temperature quite high. max at 90 celcius and most of the time at 80+ at full load. Should i just let it run @ 4,8?

keep it under 80c.. not that it harms the cpu but above 80.. theres like a wattage leakage which requires higher voltage for stability.

Currently just using the X62 out of the box. Should i reapply new thermal paste? i still have my thermal grizzly kryonaut.