4800MQ tweaking

I’m trying to beat the the power limiter on the 4800mq, but I have some issues as far as that goes.

in XTU I set
-100mv core offset
100w short and long turbo boost
256A processor current limit

however, XTU enables the MX options in the A14+ BIOS and on reboot, sometimes I get a black screen and have to do a NVRAM reset to get functioning again.

if it doesn’t hang, then it forgets the 256 processor current limit and throttles down upon restart.



anyone have any ideas, aside from getting a MX processor?

 

Since when does XTU enable MX options in the A14+ bios?

even in A14+ you need to unlock the power limits or it will limit it to preconfigured settings.

 

I can't remember turning them on, but I was sleep deprived when I was messing with it, so maybe I'm incorrect.

On restart, it does throttle again though, is there a way to fix that?

 

Its going to throttle because the chip is limited to 47w

Best you can hope for is to unlock the limits

 

I managed to unlock the limits temporarily I believe, I got a 1645 on Cinebench R20, but after a restart it will put the limit back on or blackscreen.
Figuring on just having to do a reset to get max performance when restarting, However, I got a blackscreen while browsing around with a few tabs open and had to do the NVRAM reset to get it to POST again. Max temp was 80c in Cinebench.

What is the proper way of removing the limits on these laptops? I would like to be able to reassemble my laptop and not have all the palmrest screws out for RAM removal when it blackscreens on me again.

 

There is none to my knowledge. I had to get mx chip to draw 130w out of the CPU.

 

Maybe I'm thinking of it incorrectly and it's not really what's happening, but by changing these settings from a fresh NVRAM reset, I get better performance out of my 4800mq, maybe it's not past the limits, but it performs better than what it was set as stock.
HWinfo log https://drive.google.com/open?id=12c7DcQYSloI4PS81TtfVfkA8pdsIdicI

 

Sounds like your undervolt is too extreme and the cpu cant boot reliably with that undervolt, also explains the crash under light loads, reduce your undervolt by 10mV, and keep doing só until its stable at cold and warn reboots.