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PCSX2 lowering CPU Clock Speed
#1
G'day guys

Macbook Pro 2015 Bootcamp: Windows 10 Home (64bit)
Intel Core i7-4870HQ @ 2.50GHz (Autoclocked)
16Gb RAM (15.9GB useable)
AMD Radeon R9 M370X
PCSx2 v1.5.0-dev-2421-gf22843816

Gave my system first because my problem (I think) will be the communication between PCSx2 and my CPU...
I'm running Gran Turismo 4 currently, but it happens on all games I run, and i've set my Video settings to 2x Native. On native resolution my clock speed will be up 3-3.5GHz which it runs comfortably, no worries at EE: 60%. When I set my resolution to anything above that (2x,3x etc) my clock speed drops to 0.79-0.99GHz and doesn't fluctuate, which is unusual because normally when it's working, it will fluctuate a bit. I've double and triple checked that my laptop power settings aren't hindering it

TL;DR
CPU stuck at 0.99GHz when native res is boosted by any amount, and the second I drop it to native, CPU goes back to normal

Cheers for any advice anyone can lend!
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#2
Please post the contents of the emulog.txt file after the problem occurs. The file can be found in "My Documents\PCSX2\logs" for the installer version or in "PCSX2\logs" for the portable/binary version.

Please make sure to enclose your emulog in code tags like so (remove the empty space on the closing code tag!):
[code]
Pasted emulog goes here
[ /code]
CPU : I7 2600K Oc'ed @ 4.2Ghz
Mobo : Intel P67 southbridge
GPU : NVIDIA Geforce GTX 750 Ti
RAM : 6 Go
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#3
Sounds an awful lot like thermal throttle to me. How hot is the laptop on each resolution?
Mobo: ASUS Prime Z370-A
CPU: Intel i7-8700K (3.7 GHz)
RAM: G.Skill TridentZ RGB Series, 2x8 GB DDR4 (3000 MHz)
GPU: EVGA GeForce GTX 1070Ti FTW2 (8 GB)

Oh yeah Red Pandas are cool too.

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#4
This is a well known and reported issue with your specific model of macbook. I wish there was a simple "do x" solution... maybe this (http://bigbeatworld.blogspot.com/2017/01...tcamp.html) might help. Though I do not think there is a permanent solution since the laptop was designed to throttle if the temps hit anywhere near 75c
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#5
(07-12-2018, 03:56 PM)TkSilver Wrote: This is a well known and reported issue with your specific model of macbook. I wish there was a simple "do x" solution... maybe this (http://bigbeatworld.blogspot.com/2017/01...tcamp.html) might help. Though I do not think there is a permanent solution since the laptop was designed to throttle if the temps hit anywhere near 75c
Not only that Mac Laptops don't have the best ventilation and cooling.
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