I heard local distro won't get the 9900K stock until 2019 lol.
Idealtech brought in overseas units, selling at RM2.5k

http://idealtech.com.my/store/builder/index.php

TBH I don't dare to delid the 9th Gen CPU and only 5c gain in temperatures unlike 15-20c on the previous gens.

Enough with bird poop paste, solder TIM is way better and no longer need to sacrifice the warranty.

Look for max and average temps.
Max temp cannot exceed TJmax of 100c otherwise your OC will be automatically throttled down to lower clock.
BTW where's your screenie of the 5.1GHz OC?

5.1 @ 1.335v is almost identical to my 8700K, mine needed 1.344v for 5.1GHz

Yes, once your CPU temps hit 100c mark means your OC has failed and got throttled.
Cinebench doesn't use AVX instruction so not as stressful as Prim95 v29.4 with AVX enabled.
So i can guess your 8086K is not better than an average chip.

To run AVX software such as Prime95, you will need:
4.9GHz @ 1.280v
5.0GHz @ 1.344v
5.1GHz @ 1.408v

For Cinebench R15:
4.9GHz @ 1.216v
5.0GHz @ 1.280v
5.1GHz @ 1.344v

Lower your clock down to 5.0 or 4.9, otherwise delid the chip to shave off 15-20c.

Nice try, it's rare seeing people OCing 8600K here
Apart from CPU you also need to stress the FPU, cache & memory for a more accurate stability result.

I asked them, out of stock
Btw Amazon also has ready stock right now at $550 USD.

https://www.amazon.com/dp/B005404P9I/ref=cm...i_MRmaCb6D0H84C



This post has been edited by owikh84: Nov 30 2018, 01:34 PM

For liquid-cooled overclocked 9900K, actually 8 true power phases are adequate enough.

Maximus XI Extreme and Gene will be fine, just avoid those doubled 8 phases (4 true phases) such as Hero and Formula. With less VRM phase, these boards tend to suck more juices in order to achieve stability during overclocking.

Auros' VRM is strong, but not their UEFI BIOS and accuracy of voltage reading. They are using iTE super I/O chip rather than Nuvoton silicon that is more reliable.

Can't agree more. Saw various positive feedback from overclockers about this board.
Unfortunately it's not available locally for those who care about warranty coverage.

cos people been following Raja's advice bro.
https://edgeup.asus.com/2017/kaby-lake-overclocking-guide/3/


Additionally, quality of VRM phase and voltage accuracy on mobo can also make a difference.

Post some OC ss here bro.

This post has been edited by owikh84: Dec 4 2018, 07:44 PM

Z390 ITX mobo roundup:

ASRock Z390 Phantom Gaming-ITX/AC -> best for 9900K 5GHz OC with lowest voltage
ASRock Z390M-ITX/AC
ROG Strix Z390-I Gaming
AORUS Z390 I Pro WiFi
MSI Z390 MPG Z390I Gaming Edge AC



Skip to the conclusions @ 29:34

Z390 AORUS XTREME WATERFORCE



- AIO CPU+PCH monoblock with leak detection
- 16 Phase IR Digital VRM
- 2x LAN
- 3x M.2
- Dual BIOS

Read more: https://www.gigabyte.com/Motherboard/Z390-A...FORCE-rev-10#kf

What else could you ask for!

elmor @ ASUS finally decided to explain regarding the doubled 8 phases issue on the M11H/C/F mobos.



Source: https://www.overclock.net/forum/6-intel-mot...ml#post27754334

This post has been edited by owikh84: Dec 13 2018, 06:47 AM

ROG Maximus XI now offered at below MSRP...

https://shopee.com.my/search?keyword=maximu...xi&shop=5529122

======

Meanwhile, MSI Z390i GAMING Edge AC is now available in Malaysian market @ RM790:



This post has been edited by owikh84: Dec 22 2018, 11:03 PM

Should I?


Initial testing with Realbench v2.56 (with AVX)...
9900K @ 5.0GHz core 4.5GHz cache @ 1.230v.
Stressed for 1 hour, core temps 77-85C under custom WC powered by 2x 360mm rads.
Chip is quite toasty even only 1.230v was given, same goes to VRM that's registering at 83C max. (Ambient 31C)





This post has been edited by owikh84: Dec 30 2018, 01:18 PM

Some benchmark results with 9900K @ 5GHz. More to come...

Gotta do with RAM speed + latency, my result was based on 3200 CL16-18-18.
Now increased to 12.3k with 3600 CL16-18-18.
Of course could do higher with further optimization etc.

This post has been edited by owikh84: Jan 2 2019, 10:08 PM

ow.... mine always consistent at 5GHz, giving 11.5k with DDR4-3200 and 12.3k with DDR4-3600.
Had problem hitting 2200cb in Cinebench R15 earlier, sometimes 2090-2150cb.
Managed to get it back up after a fresh install of Windows 10.

Regarding stability...
Although RB v2.56 is stable @ 1.23v for 1 hours, Prime95 v29.5 with AVX custom blend 1344K/1344K will not stable at this vCore (almost instant freeze).
I tried putting 1.275v but doesn't seem to make it stable (core temps still below 100C mark).
Will try 1.285-1.3v later if my cooling (aging Supreme HF) is still able to handle the heat.
Small FFT as expected, shot up to 100C as soon as I started stressing the chip.

Not a golden chip it seems. TBH I'm jealous seeing others getting 5GHz easily under 1.3v.

Prime95 29.5 with AVX custom blend 1344K/1344K for 3 hours
CPU temp: 69.4c average, 72c max
CPU package power: 143W max
VRM temp: 65c max


Prime95 26.6 without AVX small FFT for 25mins
CPU temp: 90.6c average, 96c max
CPU package power: 243W max
VRM temp: 98c max

Gene's VRM seriously needs some active cooling if you're stressing the CPU at ~250W...

Just got free time to play with RAM OC
Let's start with DDR4-4500...

DDR4-4500 CL19-19-19-39-2T 1.45v:


Gene XI is rated up to DDR4-4800 on the paper, next I'd try to push it further such as 4500 CL18-19-19/17-18-18, 4600 CL19-19-19 etc...

This post has been edited by owikh84: Jan 24 2019, 06:53 AM