Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[-]
Welcome
You have to register before you can post on our site.

Username:


Password:





[-]
Latest Threads
[REQUEST] Asus Zenbook (UM535QE) Bios M...
Last Post: Bravo6
Today 03:41 AM
» Replies: 0
» Views: 52
OptiPlex 360 380 760 780 960 Xeon LGA 77...
Last Post: LoFabio
Today 03:38 AM
» Replies: 265
» Views: 330266
[REQUEST] Asus G614JV BIOS Unlock
Last Post: Mrgraysky
Today 01:02 AM
» Replies: 0
» Views: 42
[REQUEST] HP Compaq nx6120 WiFi Whitelis...
Last Post: Maxinator500
Yesterday 09:24 PM
» Replies: 1
» Views: 121
[REQUEST] Acer Nitro 5 AN517-52 BIOS Unl...
Last Post: Dudu2002
Yesterday 03:50 AM
» Replies: 24
» Views: 10512
[REQUEST] Acer Nitro ANV15-51 BIOS Unloc...
Last Post: Dudu2002
Yesterday 01:14 AM
» Replies: 3
» Views: 180
[REQUEST] Lenovo Yoga S940-14IIL (BQCNxx...
Last Post: Dudu2002
07-15-2025 03:09 AM
» Replies: 1
» Views: 307
[REQUEST] Lenovo G400S (7BCNxxWW) Whitel...
Last Post: helrobsil
07-14-2025 09:10 PM
» Replies: 217
» Views: 112222
[REQUEST] Lenovo Ideapad S510p (89CNxxWW...
Last Post: Dudu2002
07-14-2025 12:04 PM
» Replies: 181
» Views: 91976
[REQUEST] GA-8I865GME-775-RH (rev. 3.9) ...
Last Post: DeathBringer
07-14-2025 01:48 AM
» Replies: 3
» Views: 557
i7 2860QM how to raise power limit?
Last Post: DeathBringer
07-13-2025 07:43 AM
» Replies: 12
» Views: 868
[REQUEST] Dell Wyse 3040: CSM enable for...
Last Post: mm400
07-13-2025 05:58 AM
» Replies: 1
» Views: 792
[REQUEST] Acer TravelMate 5760(G,Z) BIOS...
Last Post: quibic
07-12-2025 01:03 AM
» Replies: 49
» Views: 26850
Asus P8Z77-M RT-d Unlock
Last Post: cbaldwin1
07-11-2025 04:21 PM
» Replies: 0
» Views: 495
[REQUEST] Lenovo Yoga 530-14ARR (8MCNxxW...
Last Post: Dudu2002
07-11-2025 02:04 PM
» Replies: 4
» Views: 3255
[REQUEST] Gigabyte GA-X99P-SLI BIOS with...
Last Post: DKisCRUSHIN
07-11-2025 09:50 AM
» Replies: 0
» Views: 504
Acer Aspire 5920G - Requesting Modded BI...
Last Post: EbrahimSiami
07-10-2025 02:56 PM
» Replies: 1
» Views: 529
Acer A517-51G-58S5 - Complete BIOS image...
Last Post: Humboldt
07-10-2025 01:07 PM
» Replies: 2
» Views: 565
Lenovo Yoga Pro 7 14ASP9 Bios Unlock
Last Post: Dudu2002
07-10-2025 03:02 AM
» Replies: 3
» Views: 632
[RESOLVED] Help! BIOS for Asus GL503VS R...
Last Post: AmosNZ
07-10-2025 12:09 AM
» Replies: 5
» Views: 3094

BIOS Mod to Disable Intel iGPU on Acer VN7-791G (Due to BSOD - igdkmd64.sys)
#1
Hello everyone,

I’m reaching out to see if anyone here has experience or knowledge about BIOS modding for the Acer Aspire V Nitro VN7-791G. I'm specifically trying to disable the integrated Intel GPU and use only the dedicated NVIDIA GPU.

Every time the Intel GPU is active, the system crashes with a "VIDEO_TDR_FAILURE" BSOD, referencing the Intel graphics driver file: igdkmd64.sys. This happens consistently and makes the system unusable when the iGPU is enabled.

What I’ve tried so far:
  • Clean installations of Windows 10 and Windows 11
  • Multiple versions of Intel and NVIDIA drivers (including older, stable builds)
  • Used DDU to cleanly uninstall drivers in Safe Mode
  • Fully updated BIOS to the latest version 
  • Checked for overheating, hardware issues, RAM tests – all clean

Despite all this, the issue persists only when the Intel GPU is active. The system is stable when forced to use the NVIDIA GPU only, but due to NVIDIA Optimus, the Intel GPU remains the primary display device — and can't be fully disabled through software. And this causes the NVDIA GPU to have terrible performance; it works, but terrible performance. 

Is it possible to unlock or mod the BIOS on this machine to completely disable the Intel iGPU (e.g., by setting Primary Display to PEG or disabling iGPU entirely)?

If anyone has successfully done this — or can provide guidance, a modified BIOS, or confirmation that it’s possible — I’d really appreciate the help. Alternatively, if anyone can confirm it’s not possible due to hardware/display wiring limitations, that would also be valuable to know.
Thanks in advance for any insight or assistance!

Dia.


Attached Files
.bin   Stock_01.bin (Size: 8 MB / Downloads: 0)
find
quote
#2
Look at schematics of this laptop.
It can't use dedicated NVIDIA GPU without integrated Intel GPU.


Attached Files Thumbnail(s)
   
find
quote
#3
(06-23-2025, 01:03 PM)DeathBringer Wrote: Look at schematics of this laptop.
It can't use dedicated NVIDIA GPU without integrated Intel GPU.

Thanks for the clarification, DeathBringer.

If the dedicated NVIDIA GPU can't be used without the integrated Intel GPU, does that mean the only potential solution would be replacing the CPU, correct?
find
quote
#4
I think CPU replacement will not help.
find
quote
#5
(06-23-2025, 01:12 PM)DeathBringer Wrote: I think CPU replacement will not help.

Really? How come?

Always thought that since this seams to be a faulty iGPU, and they are integrated in the CPU, that replacing it would fix the issue. Do you not think that this is a iGPU faulty kind of problem; could it be caused by something else on the motherboard?
find
quote
#6
Try to uninstall all NVIDIA drivers and tools.
Then install the latest Intel driver only - https://www.intel.com/content/www/us/en/...15-40.html
find
quote
#7
(06-24-2025, 05:16 AM)DeathBringer Wrote: Try to uninstall all NVIDIA drivers and tools.
Then install the latest Intel driver only -  https://www.intel.com/content/www/us/en/...15-40.html

Already tried that; same BSOD.
find
quote
#8
Try to install Windows 7 or 8.1 with other Intel driver - https://www.intel.com/content/www/us/en/...15-36.html
find
quote
#9
(06-25-2025, 05:14 AM)DeathBringer Wrote: Try to install Windows 7 or 8.1 with other Intel driver - https://www.intel.com/content/www/us/en/...15-36.html

I tried a clean installation of Windows 7 using the supplied drivers, as well as several alternative Intel driver versions. Unfortunately, every time I install the Intel graphics driver, I still end up with a black screen or a BSOD.
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)