[SOLUTION SEEMS TO WORK WITH ALL i7-8750H ROGS]Hi all guys.
Thanks to this forum I'm using a solution (sort of) for get almost rid of the scratchy/coil whine noise using only Windows power management settings.
Mine is a GL703GE-GC033T, but I think this can work on others models.
However, little preamble: my unit comes with 302 BIOS and Win10 ver 1709 build 16299.15
At begin I've used the pc without connection to prevent it from updating, and I'm almost completely sure that the noise wasn't here.
It comes after updating Windows to 1803 and BIOS to 310.
I've contacted Asus and they answer they are working on the problem... I hope so...
However I've created and modified some power plans as
Passion64x said and done some tests with Passmark.
Main problem is that Windows use 2 types of power settings:
1) basically there is one power plan called "Balanced" in the "old" power settings windows and then the new slider with 3 power state (4 when on battery) that is shown doing left-click on battery icon
2) the old-way power setting option with power plans, if you create and set a new power plan the slider disappear
Now, the scracth/whine/noise is related to how cpu frequencies are managed (high freq = high noise, mid freq = intermittent noise, low freq = almost no noise or very low), indeed if I set the slider at MAX PERFORMANCE (or use a High Performance plan) the cpu stuck to max freq and the noise is "loud" and consistent. If I set the slider to better performance or better battery is intermittent and the freq will vary.
What I've done:
1) with balanced power plan active, I've set the slider in the center state (better performance, i think)
2) created some new power plan, one High performance and others starting from
Power saver plan, and called them "Power saver", "85% cpu", "99% cpu".
85% and 99% max cpu will disable turbo boost as said in others posts.
These are the results with Passmark CPU tests and HWINFO monitor:>
default Balanced power plan with slider at max performance:
11188 pt --> max values: T 75C, supersonic jet-like fans, 3992ghz, cpu package power 59.962w,
Power Limit Exceeded YES on all cores = continuous scratching with high pitch noise> default Balanced power plan with slider at better performance (slider at middle state):
11336 --> max values: T 75C, supersonic jet-like fans, 3991ghz, cpu package power 59.900w, Power Limit Exceeded YES on all cores
= intermittent scratching with low pitch noise>
High performance plan:
11128 --> max values: T 77C, supersonic jet-like fans, 3992ghz, cpu package power 59.935w,
Power Limit Exceeded YES on all cores = continuous scratching with high low/medium pitch noise> Power saver plan:
10358 --> max values: T 64C, airliner-like fans, 3591ghz, cpu package power 54.075w
= very low intermittent scratching, tolerable (for me) >
99% cpu:
7480 --> max values: T 51C, quiet fans, 2095ghz, cpu package power 28.253w
= continuous scratching but hardly audible>
85% cpu:
6494 -->max values: T 48C, quiet fans, 1797ghz, cpu package power 24.795w
= intermittent scratching practically inaudible...max freq of 99% and 85% are indeed the 99% and 85% of 2.2 ghz, the base frequency.
The power saver plan (in green) for me it's very good: noise doesn't bother me, cpu go almost at max performance and good temps under full load.
And if I want max power I can put balanced plan with better performance (in orange) and go at full power when needed...
I've searched the 302 bios for downgrade and do some tests but I didn't found nothing online.
😞