[Guide] How to take full control of the i7-8750H (Advanced version)

If you have an unlocked CPU, BCLK tuning might seem moot, and even if you a locked CPU, BCLK tuning/OC wont gain you all that much, since we are talking of gains in the 39-80Mhz range, its just not worth it unless you are chasing points in hwbot.
If/when a 6 core CPU is not enough its not gaining 50Mhz per core that will make it viable.

Just make sure its being properly cooled and that it can run at full clocks(3.9Ghz/4Ghz depending if 8th or 9th gen).

My i7-9750H with a mild undervolt reported 78-82W during a CB R20 run, so having a decent cooling solution is a must, if not, laptop bases with fans, liquid metal, holes in the chassis will be required to even reach stable boost clocks.

 

Hi, I have an I7 9750H, I tried the following :
Set CPU Flex Ratio Override to Enabled.
Set CPU Flex Ratio Settings to 8.

I was able to enable the CPU flex Ratio Override but it’s not letting me to go lower then 26(max non turbo speed)
When I try to enter 8 or any other number it reverts back to 26(
Is there a way to lower that number?
Thanks

 

This should be the BIOS isn't allowing you to set below base multiplier, to solve this you will have to find a bios of your model before they added the base multiplier lock.

 

Great, I’ll have to stick to 5-6 hrs in battery mode(
Thank you!

 

Front page updated.

Added the following chapters.

Chapter 8: Possible fix for C-state not going above C3
Chapter 9: Possible fix for frequency dipping below max in game when SST is set to 0

 

Hello everyone,

As I'm short on free time, does anyone here own overclocked HyperX Impact 2x 16 GB 2.666 GHz? Currently working in a Razer Blade mid 2019.

Do you mind sharing your OC parameters so I have a place where to start from during the next few evenings?

Thank you a lot!

 

https://imgur.com/xguVCb1

https://imgur.com/28pqLHN

https://imgur.com/p6nul9s

works fine with my GE75 9sg. 2x16gb memory sticks.

 

Those are Hyinx memories though! Thank you anyway!

 

I know, I wanted to upload the pics anyway,I hope it’ll help To someone

 

You can use my settings in post #3218
http://forum.notebookreview.com/thr...owners-and-discussions-lounge.825828/page-322
Just use NMode set to 2 for more stable performance and uncore: +125.
For the "uncore" thing check page 13 on this thread

 

You can also add this tweak you posted on post #31
QUOTE
go to Advanced > Power & Performance > CPU - Power Management Control > CPU VR Settings > Core/IA VR Settings

Set IMON Slope to 50
Set IMON Offset to 31999
Set IMON Prefix to " -", This is important, if you set it wrong you'll throttle like no tomorrow.
UNQUOTE

And for those who have "EDP Other" error occasionally on the throttlestop, they can do the following tweak, suggested fm you in other thread (GS 65),

QUOTE
From the main BIOS menu, go to Advanced. Select Power & Performance, then GT - Power Management Control,

• Set Maximum GT Frequency to 1050 MHz

UNQUOTE

Tnx in advance and lot of respect to you.

 

Worked like wonder, thank you!

 

Another thing maybe useful to the MSI users stated by fellow #Che0063 in this thread regarding C-states
http://forum.notebookreview.com/thr...e-on-windows-enabling-deeper-c-states.815602/
QUOTE
I’ve noticed sometimes only the Power Saver power plan allows the CPU C state to drop down to C8 on my device. Try it yourself. Microsoft hid all the power plans except for balanced, so you will have to use Mobility Centre to change the settings. (Win+X > Mobility Centre)
UNQUOTE
That worked for me

 

Hello! I saw you guys managed to oc the stock ram (probably samsung) to over 2666mhz. I am currently using Kingston HyperX Impact cl15 2666mhz 1.2v 2x8gb rams but didn't find anything about oc-ing it. Does anyone know if you can get more juice of them ?

 

See my post one page back. That should work for you too and tnx me later

 

Talk me through how to disable Intel ME?

 

My RB17 Pro won't boot at all with Spread at 0.

 

Hello, i have another issues when my cpu runs alot is doest power throttle or anything but once the nvidia gpu starts running mainly in gamea my cpu starts throttling to 35W and frequency starts dropping i increased pl1 and pl2 in bios to both 78W and i checked disable power limit in throttle stop
Also applied the imon -31999 trick and still no go my throttlestop reports pl2 throttle and edp other uner ring is there any fix for this situation please ? My cpu trops to 3.0MHz frequency causing many stutters

 

Power throttle comes on when the attempt to thermal throttle is failing. You need to undervolt your processor, lower your maximum turbo clock rates to 30 and then slowing raise them higher until it triggers the thermal throttle. Lower the clock 1 or 2 from that and that will keep the processor from getting to hot, thermal throttle, and cause stuttering. As for the power limit, its just the secondary throttle kicking in which doesn't only affect the processor but the graphic card as well. The entire system drops to a lower TDP just because of the processor. You can use msi afterburner to overclock the nvidia card, but it's just not possible to have 4ghz stable on a laptop. It's not realistic.

 

I undervolted my cpu already and also my cpu doesnt heat up max temp is around 83 degrees cpu and 75 for gpu thats why power throttle is bugging me specially the gpu doesnt throttle when the nvidia gpu runs my cpu throttles thats the issues and its like no resonable at all
All i know is my bios have configurable tdp limits which got two levels level 1 45W called nominal and level 2 35W called down what happens is like when gpu runs system starts the down configTDP limit

 

The graphic card requires more power i assume, you are working with 90W charger and 45W isn't enough for the graphic card lol. If you go to turbo settings and see the box named "clamp" for long power boost, make sure it's unchecked. Clamping means the system will draw back power if it believes it's not necessary. Like an energy efficiency method.

 

I keep mine around 3-3.4ghz on speedshift, -160mv on core/cache. If you want to keep it at a desired clock you can set the desired performance to it and it will stay there. No bouncing up and down.

 

The thing is my power brick is 150Watts but i think the system only draws 90Watts i believe thats the real issue also my system is not a demanding one because its i5 8300H and 1050ti

 

75w gpu ,,pl2 -45w ? system 30w

edit
and upgrade PSU - does not make sense EC controls power
mod EC only

 

send hwinfo sensor CPU reason cap - your problem
https://forum-en.msi.com/index.php?action=dlattach;topic=334517.0;attach=137735;image
this HWINFO screen

 

I made both limits at 78W to remove any control and still once gpu runs cpu must drop to 35W maximum and idk how to mod the EC.

 

IMON - 1/3 real power
your setting is bad ,,and "current -VR limit" no need or send screen

you set something you don't know ,,only problem
no need mod ,and any unlock "SETUP" --get overheat on your Notebook

 

Dude i said i made the imon changes that wss in page 42 exactly as written and even i unlock everything my msx temp is 83 how is that considered overheating ? Also i am saying its not heat related as once gpu starts running cpu auto pl2 locks at 35W (Down config)

 

send screen hwinfo -tab link up ,,test cpu burrner x8 cores
check results
will see ,,exist space for better config ,,i send guide

 

imon works --under load get 5-15w ,,and real is 80w

 

ideal send screen
cpu VR domain " CPU/IA tab" best disable TDC VR ,,set VR 300-450 max --get fast overheat "no EDP limit" use 75amps -300vr only for testing
on locked cpu or system ,,disable Overclock LOCK "power performance domain - configure cpu locks"

send info bios version i check file ---options // all lock inside
remove dragon center ,,custom + dc not works
.......
and use load defaults only / IMON negative offset / VR setup ? or defauts ,,no need more
and 83C - minimal space for "unlock"

 

Are you on an Asus TUF FX50X?

Sent from my BLA-L09 using Tapatalk

 

No my laptop is msi GV62 8RD
Core i5-8300H and GTX 1050ti
But you can say i got the similar issue as asus tuf

 

I would downclock/UV the CPU and tweak GPU voltage curve to stay below PLs

Sent from my BLA-L09 using Tapatalk

 

No my laptop is msi GV62 8RD
Core i5-8300H and GTX 1050ti
But you can say i got the similar issue as asus tuf

I did undervolt my cpu and i even underclocked my gpu to 1290Mhz which is really low because ny stock is 1761Mhz and still no go even underclocking the cpu would cause it to stick to 35W and reduce frequency

 

gpu is x2 not 35w ,nvvdd - x2 -75w gpu
and no need limit --only when get overheat 90-94C

ti 1050 nvsmi
GPU Shutdown Temp : 102 C
GPU Slowdown Temp : 97 C
GPU Max Operating Temp : 94 C

 

these are my hwinfo readings after power limiting to 35W i use aida64 to stress test

 

thermal event / pl4 ring bad cache iccmax //locked limit turbo --from intel
locked cpu
and temperatures ?

 

Temps are good

 

thermal event - not good
some limits not must be visible -VR sensor not exist ,,and VR run to hot

 

need only IMON "page 42" same TAB disable TDC VR
set VR 400 "100amp" - 4ghz 100./. ok ,,,for 8cores cpu full load or less -get overheat
and check overclock lock -disable

"imon" working - 1/3 power ,,,my 75w - 12w same load
only this works on locked cpu "other setting not must respon" PL limits all ,,and remove all APP for cpu "no need" and auto load your bad setup
only bios + combo key "admin access" your first post

good luck

 

Ignore the thermal event as after a long stress test cpu will reach thermal throttle but power occurs right after i click the button

 

The cpu will attempt to lower temps with thermal throttle first, if the temps don't drop below a certain temperature point long enough then you will get power limit throttle. This can also be triggered by the cache ratio being set to high as well. One trick to lower temps without decreasing clock rate is to lower the cache ratio. For example with the 8750h, the default cache ratio from min to max is 22-38. You can lower the max to 30 and it will decrease the temperature by a surprisingly significant amount. A setting in bios allows you to do this, and you will also want to enable to option to allow for a predictable ring. I don't have any issues with power or thermal throttle because i use speedshift set to a consistent 3.0 - 3.4ghz, which is a lot more stable then the sudden jump from 2.2ghz to 3.2ghz that turbo boost decides to do. The Icc max doesn't need to be changed as it is built into the chip, setting it higher in bios will do nothing.

Besides, you're not being throttled by current limit. The laptop battery may only be able to give out so much wattage, the charger and battery both have to be considered when the system is trying to draw more wattage.

 

I will try cache ration thing too but what happens with me is power throttle hits first not the thermal it would be better understood if thermal did hit first but my case power hits first and itd all because cpu gets locked at 35W limit which i dont know whyy the thing that is bugging me is thst it happens only when the dgpu joins the action

 

so here is an updated overview over my issues
1- i increased cpu cache Iccmax limit from 11amp to 232amp
2- i applied the imon thing as mentioned before 50 slope -31.999 although i feel it doesnt affect because u can see package power is 32W in the following screen
3- i reduced cpu cache ration from 8-37 to 8-30
4- i set pl1 and pl2 to 70W in bios and uncheck clamp in throttlestop
5-i made ac/dc landline both to 1 and achieved stable core/cache UV by -89.8mV

the following picture shows you the limting reasons when i run TS bench which is only cpu stress you will see no limiting at all here


now this is the limit reasons when i add gpu in actioon with aida64


i couldn't catch it on screenshot since it is really falctuating so hard but what turns to yes is
Ring: MAX VR Voltage,ICCmax,PL4 and GT:Fuses Limit
i think these are the final things that needs a fix but how?

 

You will have to enter bios and enable the PL2, PL3, and PL4 for manual configuration. GT: fuses limit is Yes which is normal for idle. It's just a sensor to indicate when the gpu is active or idle.

 

Okay ill try

 

Actually looking at this again, you are going to want to set the minimum cache limit to your base clock. In bios you want to set a predictable ring. Try using a different program, no throttle stop. Use Quick CPU, it will have a few more options.

 

I dont really understand thr minimum cache part and predictable ring

 

Oh i just read your previous post. PL2 only comes on when the dgpu joins in because the system is taking the power the cpu and giving it to the gpu. The system is compensating for the lack of power to the gpu by power throttling the cpu. You will need to adjust your settings in bios so that the gpu has more power then what you have it set to now.