Did I just hit the silicon lottery for my retail 8700K?
Batch L729B568 with VID 1.088v.
5.0GHz primed stable for 3 hours @ 1.280v at full load (BIOS set 1.30V, LLC5).
core temp 79C max (76.5C average, ambient @ 30C non-AC room).

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CPU: Intel Core i7-8700K (8C/16T) (no delid)
Mobo: ROG Maximus X Apex (BIOS 0601)
RAM: G.Skill TridentZ RGB DDR4-3200 C16 2X8GB
GC: ROG Strix GTX 1080 Ti OC SLI
SSD: Samsung 960 EVO 500GB
PSU: Corsair AX1200i
Cooling: Custom WC

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Should I delid the chip? 
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Is it xtreme 4 batter then tuf tq

asrock gaming k6
tq for info bro kevin

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?

at this board its show 1.12v. i think TUF show false vid
at bios i set 1.3v cpuz show 1.296v llc level 1(with this setting i can play battlefield 1 not crash)
i try 5ghz until 1.36 v the temp goes until 100c then i stop prime
lower then that 1.36v prime not run sad

My first noob attempt at BCLK oc on Skylake. Prime95 v29.3, OCCT, AIDA64 stress test stable. (My last oc was on C2D E8400 )

still  rookie in oc just delid my 7700k with aoros gaming 5
4.8ghz 1.285 max temp 80?
, can anyone here guide me ?

i3 8350k

highest 4.9 bios 1.41v
5ghz tested until 1.45v crash
when using 8700k mr ram can oc to 3400 wiht this ican go 3200 only

batch l730c305
vid 1.12v
custom wc
prime 95 1344 25min test
bios 1.36v
still have vrm drop

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. 

bios set 1.35,1.36 its show 1.344 at cpuz