tried this method it worked but facing screen black issue after sleep mode
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Hello!
I'm trying to permanently disable the dGPU (NVidia GT 750M) in my late-2013 MacBook Pro Retina (A1398 820-3787-A). I can get the system to boot up using the nvram variable "fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00", and can prevent the OS from switching to the dGPU via a handful of different methods (e.g. via OpenCore + WhatEverGreen or spoofing the device properties), but the discrete chip seems to stay powered up and cause the machine to overheat. I'm hoping to accomplish something similar to this hardware modification for a 2011 MBP:... -
Hello everyone, ASUS FX505GT, dedicated GPU is shorted dead, I would like to disable it completely to activate only integrated CPU graphics.
Any ideas? I was thinking to start by removing L8700 and L8701 so +NVVDD wont power the GPU, and maybe editing BIOS to disable it and also eliminate the possibility of fans going full speed and that kind of weird behavior.
Is this possible? Any help would be great!
Schematic & Boardview
https://www.badcaps.net/forum/troubl...ets-and-mobile... -
I quiet struggling with board lenovo c681 to disable 4gb samsung onboard ram because they're faulty, I followed the instruction on the schematic to disable them with resistor codes but still not detecting the ram on the slot.
can someone disable onboard ram from my dumped bios, please 🙏
I tried the other bios on this forum with disabled onboard ram, but no success
my final try is to find someone that can help disable onboard ram in my dumped bios attached in this post.
after that I officially give up 😂
thanks for awesome jobs 😊... -
hi, i have problems with nvidia gpu, it has been removed
R8999 -> PPVCORE_S0_GFX_PH1
R8998 -> PPVCORE_S0_GFX_PH2
jumpered R9404 with c9711 for fixed lighting, I would need a dump with gpu disabled, the bios chip is new and I flashed a dump found on the net, I hear the boing but I get black screen, can someone post a dump with gpu disabled? thanks
820-3332a emc 251211-13-2022, 01:52 PM -
I bought a second hand Mid 2014 A1398 MacBook Pro when I lived in Australia. I'd bought it as a back-up machine because I had a Mid 2014 MacBook Pro, and realising it might one day fail, I wanted a backup machine because I don't like change.
Two weeks after buying MBP2, the seller called me to check if everything was OK with the unit, which I thought was odd. At that stage I might have turned it on a couple of times, but I'd not used it when he'd called. Over the last few years I used the machine seldomly because my original mac has been pretty OK. Every 3-6 months I'd charge it...12-27-2024, 05:19 PM
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