8700k to 5ghz

[the wopster]

should all 8700ks do 5ghz? I’m really struggling to get 5ghz stable, it blue screens after about 2 mins of realbench hitting about 86c and about 92c I have even tried upto 1.4v and it still blue screens anyone got any advice

 

[the wopster]

Could be memory related. Is everything else at auto? Set 1 thing at a time to try and narrow it down.
1.35v should be enough for most 8700ks

Memory ran fine at 3200 with my Ryzen

Nope, down to silicone lottery and looks like you lost.

If that’s the case I will send it back and buy a delidded chip

 

[the wopster]

These are the setting I’m using
1) Set XMP
2) Vcore / Manual / 1.35v
3) IO 1.2v
4) SA 1.22v
5) CPU standby 1.2v
6) LLC / load line calibration 6 or 7 (board dependent)
7) Current cap (CPU) 140%

 

[the wopster]

Remove xmp and try cpu overclock only.
Or manually set the timings, it may just not like the xmp profile.

I did try that also I forgot the /manual

 

[the wopster]

Seems you have a lemon then mate
5ghz should be achievable for most.

I will see if there is a new bios when I get in and try to start again

 

[the wopster]

before realbench, what is the absolute minimum voltage for it to pass cinebench r15? if Asus please set LLC6, Asrock LLC1 and manual/fixed voltage please.

I will try CineBench when I get in I was using LLC5

Most 8700Ks will make 5.0 after delid, but not all, according to Silicon Lottery. Your SA and IO voltages seem really high, could easily drop them by 0.1 V for 3200.

I had my IO at 1.3 at one point

 

[the wopster]

1.2v is fine although not needed at 3200. Lower it could help with the temp.
When you do the cinebench please let me know the voltage you set in bios and the voltage which cpuz reads.

Will do, I really may have a bad chip because I was shocked at the temps at stock they were hitting 68-72c and that’s with my triple and dual rads, it only has my chip and 1070 in the loop

 

[the wopster]

When running CineBench do I run it on a loop or is it just the one cpu test?

 

[the wopster]

What am I missing sometimes it says at 5ghz sometimes it downclock to 4.?

 

[the wopster]

I really don’t understand this it’s now idling at 3.7 even though I have switched speedstep and turbo mode off

 

[the wopster]

In the bios it says target speed 5ghz but on the right hand side it f the bios it says it’s running at 3.7

 

[the wopster]

just load the bios to default then all core ratio = 50, avx offset = 0, LLC6, manual voltage to the bare minimal level which it passes cb15.

That’s what I’m trying but it doesn’t seem to want to apply the overclock

 

[the wopster]

so when you run cb15 the clock drops?

Now the overclock won’t apply

 

[the wopster]

Yes, it now seems to be working holding at 5ghz 3 runs on the trot no problem max temp 78c but memory only running at 2133

 

[the wopster]

dont worry about it for now. What is the read in CPU-Z when you run cb15?

Yeah it’s now sticking at 5ghz @1.344v 79c, temps still worry me for being under a triple and double rad

 

[the wopster]

I’m giving it a 15minute run of realbench now to see how long it lasts edit it lasted 2 mins

 

[the wopster]

can you get the vol any lower? 8700K runs hot without deliding. Intel stock TIM sucks big time.

Trying 1.325 now

 

[the wopster]

That's normal for an unlidded 8700k tbh.
Once you're happy it's stable bring the memory speed up.

Mem speed is up, how can I call it stable if it can’t pass realbench for more than 3 mins

 

[the wopster]

Blue screened at the end of the 3rd run trying 1.33

 

[the wopster]

How is 1.325v doing with cb15?

Blue screened at the end of the 3rd run trying 1.328