7700K @ 5ghz z270 OC Help (Stability)

[AvengerUK]

Hello everyone!

Hoping you can help me with my OC.

Firstly - worth mentioning I have a binned 5Ghz 7700k - which I have de-lidded for temps, and using the latest bios.

I initially thought my OC was stable @ offset voltage resulting in ~ 1.360 (I can't get 1.350, either 1.344 or 1.360 - I know from the bin that 1.350 is the spot).

However, crashed a few times while gaming

I am now back to Manual set to 1.350 - LLC 6. Full settings in screenshots below. Prime95 has been stable @ large 1344 FFT for an hour (more to do) - but realbench (specifically, lux mark) crashes. I think that may be an issue with my drivers as its the display that seems to crash (screen goes off for a moment), so I'm focusing on Prime95. (GPU is stable btw elsewhere).

Temps under stress are max 67-70

Pictures: http://imgur.com/a/Jgw5d

Manual Vcore: 1.35 (Under stress in CPUZ = 1.36)
CPU LLC = 6
CPU Current = 140%
AVX offset: 3
All cores to: 50x
AI Overlcock tuner = Manual
BLK 100
Multicore enhancement = 0
CPU Core/Cache current limit = 255.50
DRAM Volt = 1.35
DRAM speed: 3000
All other CPU volts auto (e.g. SA)

Power limits:

Long: 4095
Package: 127
Short: 3095

DRAM timings are set to manufacturers rec.
Now, if this remains stable - I'm guessing it's good. Note - VCCIO and SA Auto volt quite high though!

But, obviously I want to allow the CPU to downclock / downvolt when idle - however offset doesn't want to be stable at these or higher volts!

Any pointers? (I'm going to guess your going to say "Use Adaptive" - however I've never managed to get that to work! - usually overvolts massively).

Thanks!

Pictures: http://imgur.com/a/Jgw5d

 

[alphadogg123]

The imgur link doesn't seem to be working for me btw.
Sounds like your 'binned 1.35v binned cpu isn't stable at the voltage you're running at lol. Normally a 7700k requires about 1.42v to run 5ghz so you best have a capable cooler if you are going to add voltage to a cpu already maxing at 70oC.
Also what paste did you use for your delidded cpu? What motherboard are you running? What cooler are you running? What site said they'd binned your cpu for 1.35v @5ghz?

 

[AvengerUK]

The imgur link doesn't seem to be working for me btw.
Sounds like your 'binned 1.35v binned cpu isn't stable at the voltage you're running at lol. Normally a 7700k requires about 1.42v to run 5ghz so you best have a capable cooler if you are going to add voltage to a cpu already maxing at 70oC.
Also what paste did you use for your delidded cpu? What motherboard are you running? What cooler are you running? What site said they'd binned your cpu for 1.35v @5ghz?

Using GX Xtreme, with a Predator AIO cooler. Motherboard is a Asus Srix 270h,

Bought from OCUK.

I'm currently stressing it @ Adaptive 1.350, offset+.002 which in Prime95 results in 1.376 reported in CPU-Z - so far (an hour in only atm) - stable, 1.360 for non-prime95 applications. We'll see....

1.42v isn't territory I fancy to be honest!

 

[alphadogg123]

1.42v is just a normal voltage required for 5ghz you may find your cpu is worse or better or not even capable of 5ghz.
You're paste isn't ideal for a delid you would be best off using liquid metal though I'd be surprised if you gained more than 5oC cooler temps.
On my 3770k @4.6ghz 1.42v I see temps in the 80-90s with a regular paste and early 70s with liquid ultra. I've experimented with different pastes like noctua and Arctic mx-4 but found liquid metal works a ton better under an ihs and just use mx-4 on top of the ihs which is less fussy.

The imgur link doesn't seem to be working for me btw.
Sounds like your 'binned 1.35v binned cpu isn't stable at the voltage you're running at lol. Normally a 7700k requires about 1.42v to run 5ghz so you best have a capable cooler if you are going to add voltage to a cpu already maxing at 70oC.
Also what paste did you use for your delidded cpu? What motherboard are you running? What cooler are you running? What site said they'd binned your cpu for 1.35v @5ghz?

Using GX Xtreme, with a Predator AIO cooler. Motherboard is a Asus Srix 270h,

Bought from OCUK.

I'm currently stressing it @ Adaptive 1.350, offset+.002 which in Prime95 results in 1.376 reported in CPU-Z - so far (an hour in only atm) - stable, 1.360 for non-prime95 applications. We'll see....

1.42v isn't territory I fancy to be honest!