Officially jump on the bandwagon...

ROG Maximus X Apex and TUF Z370-Pro Gaming are here.
[attachmentid=9250920]

Let's start with the Apex 
[attachmentid=9250926]

First thing to do is of course to overclock the i5-8600K CPU to 5.0GHz (BIOS set 1.425v, LLC5) and run Cinebench R15:
[attachmentid=9250927]
CPU score: 1221 cb (7700K @ 5.0GHz: 1087 cb)

Currently, I am also testing the LLC in Realbench 2.44 (AVX) to see the vdroop/vdrop. This is just part of the results:
[attachmentid=9250934]
LLC works fine for me, vdroop = -0.016v, despite ROG Strix Z370-F users are complaining about 0.08-0.09v vdroop.

[attachmentid=9250946]
Also note the core temps, idle @ 57.3C, load @ 85.3C, which are in my opinion a bit on the high side.
Cooling is custom loop lowered by a pair of 360mm radiators in push-pull fan configuration.

Nice bro, what is your VID showed in the UEFI screen with everything set to default?
I believe 1.296v is your idle vCore. What is your BIOS set vCore, load vCore, and LLC used?

Did you mean vdroop? Load voltage drops too much?
For Prime95, I noticed that I'd need to increase the vCore a bit to get it stable at higher RAM frequency.
Which means your current vCore might not be sufficient if you don't stress the RAM at the same time.
Hence, I'd recommend to also stress the IMC preferably at 95%+ RAM usage. 

managed 4.6ghz on my 8700k without touching the voltage, did i win the lottery? undelided @ ~78c

noob overclocker here. i followed these steps on an Aorus Ultra Gaming + 8700k but it went into boot loop on windows logo with the circly things

Officially jump on the bandwagon...

ROG Maximus X Apex and TUF Z370-Pro Gaming are here.
[attachmentid=9250920]

Let's start with the Apex 
[attachmentid=9250926]

First thing to do is of course to overclock the i5-8600K CPU to 5.0GHz (BIOS set 1.425v, LLC5) and run Cinebench R15:
[attachmentid=9250927]
CPU score: 1221 cb (7700K @ 5.0GHz: 1087 cb)

Currently, I am also testing the LLC in Realbench 2.44 (AVX) to see the vdroop/vdrop. This is just part of the results:
[attachmentid=9250934]
LLC works fine for me, vdroop = -0.016v, despite ROG Strix Z370-F users are complaining about 0.08-0.09v vdroop.

[attachmentid=9250946]
Also note the core temps, idle @ 57.3C, load @ 85.3C, which are in my opinion a bit on the high side.
Cooling is custom loop lowered by a pair of 360mm radiators in push-pull fan configuration.

hmm... couldn't be that ASRock set -4 as the AVX offset by default.
Inside Windows, you can check it through software like XTU or probably ASRock's own utility.
Inside UEFI, you can manually set it to 0 in case you want to disable this function.

hi owikh,

between prime95 v26.6 vs latest ones, which one would you rather base your overclock settings on?

the temp differences between these 2 versions are quite far apart and not to mention via voltage offset mode one is underload at 1.18v with vdroop and another is at 1.2v with vdroop so i figured i could go lower voltage with the prime95 v26.6 stress test but i'd fail the v29.4 stress test if i were to use the same offset

Ya. Today i found quite a lot of ppl with d15 are reporting almost the same temp underload at 75-80 in game with no avx instructions. So i can said that our temp is normal and the other way around is to delid it which will bring our 8700k to 60c  underload. Tempting to do it but i still dont want to void the warranty yet . The tim from intel is just garbage.