Not an apple to apple comparison because you're comparing 8700K + Z370 ASRock vs 9900K + GIGABYTE Z390. Could be either IMC or BIOS RAM setting issue as you're playing with auto most of the time. My last 9900K and current 9900KS have stronger IMC than my 8700K, based on the same board.

Yes, your real vCore = VR VOUT. Now stop looking at CPU-Z.

This post has been edited by owikh84: Jan 12 2020, 10:50 PM

Memtest64 is not good for RAM OC, probably useful for checking faulty RAM stick only.
I always use HCI and Prime95 custom blend with 90%+ memory load.
OCers have been recommending 2-3 hours of GSAT, Karhu Ramtest 20000%, HCI 1000%.

Finally moved the 9900KS to my V3000 build to replace the old 8700K.
Other updates are Maximus X Formula > Maximus XI Formula, Strix 1080Ti SLI > Vertical Strix 2080Ti.
TridentZ RGB sticks now received Royal-like crystal tops.



Initially had problem getting my 32GB memory to POST at the rated 4266 CL19 specs with the latest 1401 BIOS, but managed to get it fixed with the older 1302 BIOS. However, ASUS' auto-set both SA and IO voltages at 1.40v gave me errors in HCl test. Reducing both SA and IO down to 1.25v has allowed me to achieve stability.

4x8GB 4266 CL19 @ 1.40v:




More tests to come, stay tuned

This post has been edited by owikh84: Feb 23 2020, 04:27 PM

9900KS 5.0GHz @ 1.190v Realbench v2.56...

Max CPU core temp: 87C
Max GPU temp: 49C

4x8GB DDR4-4266 CL17-18-18-38-2T @ 1.45v

In order to achieve this stability, the RAM needed to be actively cooled to bring the temp down from 55C to about 40C.

4x8GB DDR4-4400 CL18-22-22-42-2T @ 1.50v

Not optimized yet, slightly better bandwidths but higher latency.





Edit: pic of the rig


This post has been edited by owikh84: Feb 23 2020, 04:27 PM

9900KS 5.2GHz @ 1.235v
4x8GB DDR4-4400 CL18-22-22-42-2T @ 1.50v

Updated.
Why now 4.9GHz compared to 5.0GHz achieved on ASRock Z370 Gaming-ITX/ac?

Well done! 3733 CL18 2x16GB DR 1.41v at 1T.
Are you able to do 2T at lower voltage say 1.35v?
2T should have slightly lower performance than 1T.
Perhaps you could share AIDA64 readings of 1T vs 2T.

2 more days guys...

Don't be like that guys. I still need to feed myself during this MCO.

Btw, ROG Strix Z490-A spotted at IdealTech. Pricing and availability TBA.

I don't have the Z390 AORUS Master board, so can't speak much especially regarding CPU OC.
Micron E should be able to do well at 4000 CL18-19-19-39 @ 1.35v just like my Crucial Ballistix Elite (Micron E).
No overclocking result from me though.
Can consider raising the VCCSA & VCCIO to about 1.25-1.30v to achieve stability, that depends hugely on your CPU IMC ya.
Oh damn I just saw you are running with 4x8GB, this definitely requires higher vDIMM, VCCSA, VCCIO and probably loose RAM timing than just 2 sticks.


Bought new from eBay at RM600 recently, I bet you won't find this deal anywhere else.

This post has been edited by owikh84: May 5 2020, 07:48 PM

Yo bro, Xtreem 4500 has been in my Amazon wish list since months ago.
Super binned B-die with tweaked PCB, but damn expensive for a non-RGB RAM.
Btw, I did link its review in the first post, check this out: https://www.clockemup.com/review-t-force-xt...pcb-rev-2018/6/

Hynix DJR will be the new B-die?


Source: https://www.msi.com/Motherboard/support/MEG...#support-mem-31


Source: https://download.gigabyte.com/FileList/Memo...reme_200507.pdf

Local pricing for ASUS Z490 mobos announced and now opened for pre-order with ROG Gladius mouse as free gift.


This post has been edited by owikh84: May 11 2020, 12:15 AM

My source says Apex is coming but in very limited unit.
Extreme $750 - RM 3429
Formula $500 - RM 2409
Apex $420 - RM 2025
Hero Wifi $400 - RM 1986

10900K no ETA yet, but hard to guess the price cos back then 9900K was launched here at RM2.8k while 9900KS @ RM2.4k.

10900K @ 5.0GHz ~ 80-87c on 240mm AIO ft. ROG Strix Z490-A mobo.


Only Z490 Extreme supports PCIe4 on the M.2 port.

Source: https://www.cool3c.com/article/153618




This post has been edited by owikh84: May 15 2020, 10:27 PM

Maximum safe voltage for IO/SA are not really confirmed.
Intel's limit for SA is 1.52v max while IO has not been defined, specs as follows:
Depending on board vendors, typical SA and IO voltages for high-speed (4266-4400) and 4x8GB RAMs should be around 1.30-1.40v. 4500+ 2x8GB would require 1.6v SA/ 1.45v IO at least on ASUS 2-DIMM boards. Make sure to monitor actual reading of these voltages with HWiNFO64 during load because some mobos might have LLC feature on IO/SA that makes them droop at load.

Since you're using Z390 AORUS Master right, why don't you refer to their [URL=RAM QVL]https://download.gigabyte.com/FileList/Memory/mb_memory_z390-aorus-master_191113.pdf[/URL].


Try to replicate the RAM frequency & timings. Maybe 17-17-17 is too tight for your board or CPU IMC to handle. For me, I'd start with 4000 17-18-18 @ 1.35v for a good B-die kit or 18-19-19 for below-average B-die sticks.

It's because you let BIOS to auto-set the subtimings for you.
Mind sharing screenshot of timings on 4000 C17 vs 3900 C17 read by ASRock Timing Configurator?
Oh now I got it, 3900 C17-17-17 should have better latency than 4000 17-18-18 but the former is not stable. How about stability of 4000 17-18-18?

This post has been edited by owikh84: May 17 2020, 05:04 PM

10900K vs 3900X vs 3950X







Soruce: https://www.bilibili.com/video/BV1ZC4y1H7NC/

TL;DR:

10900k is 3.3% faster than 3950x and 4.1% than 3900x in gaming.
3950x and 3900x beats it by a lot in other things.

10900k runs hot even on a 360mm aio

Power draw;
10900k = 338w
3950x = 306w
3900x = 263w

This post has been edited by owikh84: May 19 2020, 06:58 AM