https://www.bios-mods.com/forum/ Sat, 02 May 2026 19:01:46 +0000 MyBB https://www.bios-mods.com/forum/Thread-Lenovo-ThinkCentre-M75q-1-AMD-Unlock-UMA-Frame-Buffer-Size-Advanced-BIOS-Menu Tue, 17 Feb 2026 09:47:28 -0500 AdoniS4U]]> https://www.bios-mods.com/forum/Thread-Lenovo-ThinkCentre-M75q-1-AMD-Unlock-UMA-Frame-Buffer-Size-Advanced-BIOS-Menu
​I’m an IT technician, programmer, and longtime PC enthusiast. I’m reaching out to this community in hopes of finding some information—or ideally, a modded BIOS—for my Lenovo ThinkCentre M75q-1 (AMD processor with Vega 8 integrated graphics).

I am currently working on a Hackintosh project and trying to boot macOS on this machine. Because it’s an AMD APU, macOS strictly requires a minimum of 512MB of allocated VRAM from the BIOS to boot successfully. Unfortunately, my UMA Frame Buffer Size is completely locked at 256MB.

​Beyond just hitting the 512MB minimum, I am also curious: is it possible to unlock even higher VRAM allocations (e.g., 1GB or 2GB)? If anyone has experience with this, I'd love to know the practical implications and performance benefits of doing so on this Vega 8 setup. Additionally, are there any hardware repercussions, stability issues, or known risks (like memory mapping errors or overheating) associated with forcing this modification on this specific Lenovo motherboard?

​What I’ve tried so far:

​Official Updates: I've tested the latest official BIOS (available here: https://support.lenovo.com/it/it/downloa...75q-1/1000 ).

​Downgrading: I tried downgrading to various 2021 BIOS versions, as some users reported the UMA setting was accessible back then, but the option remained unavailable.

​Third-Party Tools: I booted into Smokeless UMAF (Universal AMD Form Browser) to try and bypass the hidden menus and force the change. Unfortunately, it seems these specific AMD CBS/PBS options are completely "armored" or hardcoded on this board, and I couldn't alter the Frame Buffer size.

Does anyone have a modded BIOS for the M75q-1 that unlocks the Advanced Menus or specifically allows changing the UMA Frame Buffer Size? Alternatively, if anyone knows a workaround or a specific variable to edit via EFI shell to unlock this setting, I would greatly appreciate the guidance.

​Please note that I do not currently own a hardware programmer (like a CH341A). However, if a direct hardware flash is the only way to bypass Lenovo's protections, I am absolutely willing to purchase one to get this done.

​Thanks in advance for your time and expertise! AdoniS4U]]>
​I’m an IT technician, programmer, and longtime PC enthusiast. I’m reaching out to this community in hopes of finding some information—or ideally, a modded BIOS—for my Lenovo ThinkCentre M75q-1 (AMD processor with Vega 8 integrated graphics).

I am currently working on a Hackintosh project and trying to boot macOS on this machine. Because it’s an AMD APU, macOS strictly requires a minimum of 512MB of allocated VRAM from the BIOS to boot successfully. Unfortunately, my UMA Frame Buffer Size is completely locked at 256MB.

​Beyond just hitting the 512MB minimum, I am also curious: is it possible to unlock even higher VRAM allocations (e.g., 1GB or 2GB)? If anyone has experience with this, I'd love to know the practical implications and performance benefits of doing so on this Vega 8 setup. Additionally, are there any hardware repercussions, stability issues, or known risks (like memory mapping errors or overheating) associated with forcing this modification on this specific Lenovo motherboard?

​What I’ve tried so far:

​Official Updates: I've tested the latest official BIOS (available here: https://support.lenovo.com/it/it/downloa...75q-1/1000 ).

​Downgrading: I tried downgrading to various 2021 BIOS versions, as some users reported the UMA setting was accessible back then, but the option remained unavailable.

​Third-Party Tools: I booted into Smokeless UMAF (Universal AMD Form Browser) to try and bypass the hidden menus and force the change. Unfortunately, it seems these specific AMD CBS/PBS options are completely "armored" or hardcoded on this board, and I couldn't alter the Frame Buffer size.

Does anyone have a modded BIOS for the M75q-1 that unlocks the Advanced Menus or specifically allows changing the UMA Frame Buffer Size? Alternatively, if anyone knows a workaround or a specific variable to edit via EFI shell to unlock this setting, I would greatly appreciate the guidance.

​Please note that I do not currently own a hardware programmer (like a CH341A). However, if a direct hardware flash is the only way to bypass Lenovo's protections, I am absolutely willing to purchase one to get this done.

​Thanks in advance for your time and expertise! AdoniS4U]]> https://www.bios-mods.com/forum/Thread-REQUEST-Lenovo-l380-unlock-advanced-menu Sun, 16 Feb 2025 05:58:46 -0500 denisv7]]> https://www.bios-mods.com/forum/Thread-REQUEST-Lenovo-l380-unlock-advanced-menu Please unlock CFG & Advance Menu for my ThinkPad L380.

l380 bios dump]]> Please unlock CFG & Advance Menu for my ThinkPad L380.

l380 bios dump]]> https://www.bios-mods.com/forum/Thread-Unlock-CFG-Lock-on-HP-Compaq-Elite-8300-CMT Sun, 09 Feb 2025 02:01:16 -0500 faiz981219]]> https://www.bios-mods.com/forum/Thread-Unlock-CFG-Lock-on-HP-Compaq-Elite-8300-CMT
BIOS link attachment :
K01_0304.BIN

  K01_0304.BIN (Size: 16 MB / Downloads: 3) ]]>
BIOS link attachment :
K01_0304.BIN

  K01_0304.BIN (Size: 16 MB / Downloads: 3) ]]> https://www.bios-mods.com/forum/Thread-Solved-Bios-Mod-Thinkpad-X250-Disable-0251-CMOS-Error Sun, 23 Jun 2024 13:30:08 -0400 flo34]]> https://www.bios-mods.com/forum/Thread-Solved-Bios-Mod-Thinkpad-X250-Disable-0251-CMOS-Error
I have a Thinkpad X250 with a modded BIOS including advanced BIOS menu and CFG bit unlocked. It is running macOS Monterey and everything works (almost) perfectly, there is a strange problem with Hibernation which I can't figure where it comes from.

The thing is when I put the laptop into Hibernation, it shuts down well and resume perfectly when I turn it on again, but on the next boot it throws me this error "0251: System CMOS Checksum bad - Default configuration used". I've litteraly tried everything on macOS/OpenCore side with HibernationFixup, RTCMemoryFixup, by targetting the RTC offsets which shouldn't be written but it seem that it doesn't changes anything. The problem is not present with Linux/Windows and macOS when I use Standby S3 sleep.

So my new idea is to see if it is possible to mod the BIOS to disable warnings related to this CMOS error, the UEFI module in question is named "DxeCmosInit".

Does anyone has any idea how to do this? The BIOS file is attached to this post. Or alternatively do you think it's possible to just remove the DxeCmosInit module from the BIOS, will it work?

Thanks a lot!]]>
I have a Thinkpad X250 with a modded BIOS including advanced BIOS menu and CFG bit unlocked. It is running macOS Monterey and everything works (almost) perfectly, there is a strange problem with Hibernation which I can't figure where it comes from.

The thing is when I put the laptop into Hibernation, it shuts down well and resume perfectly when I turn it on again, but on the next boot it throws me this error "0251: System CMOS Checksum bad - Default configuration used". I've litteraly tried everything on macOS/OpenCore side with HibernationFixup, RTCMemoryFixup, by targetting the RTC offsets which shouldn't be written but it seem that it doesn't changes anything. The problem is not present with Linux/Windows and macOS when I use Standby S3 sleep.

So my new idea is to see if it is possible to mod the BIOS to disable warnings related to this CMOS error, the UEFI module in question is named "DxeCmosInit".

Does anyone has any idea how to do this? The BIOS file is attached to this post. Or alternatively do you think it's possible to just remove the DxeCmosInit module from the BIOS, will it work?

Thanks a lot!]]> https://www.bios-mods.com/forum/Thread-Dell-Inspiron-16-5630-Bios-Unlock-with-advanced-menus Mon, 14 Aug 2023 13:58:11 -0400 mackyreddy]]> https://www.bios-mods.com/forum/Thread-Dell-Inspiron-16-5630-Bios-Unlock-with-advanced-menus
Bios revision: 1.8.0

I need advanced bios options

Download link https://dl.dell.com/FOLDER10540112M/1/In..._1.8.0.exe]]>
Bios revision: 1.8.0

I need advanced bios options

Download link https://dl.dell.com/FOLDER10540112M/1/In..._1.8.0.exe]]> https://www.bios-mods.com/forum/Thread-Bios-MOD-Lenovo-L390-Wifi-support-MacOS Thu, 01 Jun 2023 04:33:35 -0400 PoMpls]]> https://www.bios-mods.com/forum/Thread-Bios-MOD-Lenovo-L390-Wifi-support-MacOS

They have given me a Thinkpad L390 that I love, I have installed MacOS Ventura and it works very well...

But I have a problem, the wiffi is intel... I have several full work wiffi cards at home in MacOS, but I have put it on this laptop and the wiffi does not show up, not even in windows as a PCI device, it's like I didn't put the card in the slot, instead the Bluetooth yes...

So, before making a copy of the bios with the SPI programmer, I wanted to ask you if the wifi card I'm talking about could be activated with a bios MOD, which is the following:

https://www.ebay.es/itm/174776123154?_tr...1465.m3507

Is that this laptop has an Intel AC 9560 which is CNVi... and the wifi BCM94360NG is NGFF and I don't know if the laptop will detect it even with a bios MOD???

Thank you so much]]>

They have given me a Thinkpad L390 that I love, I have installed MacOS Ventura and it works very well...

But I have a problem, the wiffi is intel... I have several full work wiffi cards at home in MacOS, but I have put it on this laptop and the wiffi does not show up, not even in windows as a PCI device, it's like I didn't put the card in the slot, instead the Bluetooth yes...

So, before making a copy of the bios with the SPI programmer, I wanted to ask you if the wifi card I'm talking about could be activated with a bios MOD, which is the following:

https://www.ebay.es/itm/174776123154?_tr...1465.m3507

Is that this laptop has an Intel AC 9560 which is CNVi... and the wifi BCM94360NG is NGFF and I don't know if the laptop will detect it even with a bios MOD???

Thank you so much]]> https://www.bios-mods.com/forum/Thread-REQUEST-Fujitsu-Esprimo-D965-CFG-Lock-settings-unlock Thu, 09 Feb 2023 05:26:14 -0500 sdmkx]]> https://www.bios-mods.com/forum/Thread-REQUEST-Fujitsu-Esprimo-D965-CFG-Lock-settings-unlock
Can someone please help me to unlock/unblock bios? Look like the bios do not allow the installation of Hackintosh. Does not see the UEFI bootloader. Installed NVME and SATA ssd, I tried all options for installing but had no luck...

https://support.ts.fujitsu.com/IndexDown...B06E0894EE

https://support.ts.fujitsu.com/IndexDown...F7E6051C65]]>
Can someone please help me to unlock/unblock bios? Look like the bios do not allow the installation of Hackintosh. Does not see the UEFI bootloader. Installed NVME and SATA ssd, I tried all options for installing but had no luck...

https://support.ts.fujitsu.com/IndexDown...B06E0894EE

https://support.ts.fujitsu.com/IndexDown...F7E6051C65]]> https://www.bios-mods.com/forum/Thread-REQUEST-ThinkPad-X1-Carbon-1st-Gen-CFG-Lock-advanced-settings-unlock Thu, 05 Jan 2023 05:45:25 -0500 bibarub]]> https://www.bios-mods.com/forum/Thread-REQUEST-ThinkPad-X1-Carbon-1st-Gen-CFG-Lock-advanced-settings-unlock
Lenovo ThinkPad X1 Carbon 1st Gen (34xx)
G6ETC5WW
official bios - https://download.lenovo.com/pccbbs/mobiles/g6uj32us.exe
bios dump - https://fromsmash.com/r_4poXIXCt-dt

also, if that's possible, i would like to unlock advanced settings
thanks.]]>
Lenovo ThinkPad X1 Carbon 1st Gen (34xx)
G6ETC5WW
official bios - https://download.lenovo.com/pccbbs/mobiles/g6uj32us.exe
bios dump - https://fromsmash.com/r_4poXIXCt-dt

also, if that's possible, i would like to unlock advanced settings
thanks.]]> https://www.bios-mods.com/forum/Thread-Unlocking-CFG-Lock-in-Acer-BIOS Sat, 19 Nov 2022 16:14:16 -0500 david20040]]> https://www.bios-mods.com/forum/Thread-Unlocking-CFG-Lock-in-Acer-BIOS
 BIOS: https://global-download.acer.com/GDFiles...SC=EMEA_22

 LAPTOP: https://www.acer.com/ro-ro/support?searc...l_download

Can anyone help me out? I will appreciate if so. Thhanks!

PS: I can't open the bios executable file on Windows. It seems to be loading but immediately closes.]]>
 BIOS: https://global-download.acer.com/GDFiles...SC=EMEA_22

 LAPTOP: https://www.acer.com/ro-ro/support?searc...l_download

Can anyone help me out? I will appreciate if so. Thhanks!

PS: I can't open the bios executable file on Windows. It seems to be loading but immediately closes.]]> https://www.bios-mods.com/forum/Thread-Display-topology-module-DTM-firmware-modding Tue, 23 Aug 2022 09:29:13 -0400 Allen62329]]> https://www.bios-mods.com/forum/Thread-Display-topology-module-DTM-firmware-modding https://www.bios-mods.com/forum/Thread-Lenovo-G500S-bios-mod-request-for-Hackintosh-DMVT Mon, 01 Aug 2022 10:49:34 -0400 futureorkun]]> https://www.bios-mods.com/forum/Thread-Lenovo-G500S-bios-mod-request-for-Hackintosh-DMVT https://www.bios-mods.com/forum/Thread-Support-CFG-setup-Var-Protocol-error Sun, 10 Jul 2022 13:12:55 -0400 hoanglongvonguyen]]> https://www.bios-mods.com/forum/Thread-Support-CFG-setup-Var-Protocol-error

Hello i am having some problem with my CFG here is my bin file. I can't extract the text file the error I get is Protocol: unknow i am using setup_var . method

  291886117_557336102783102_7542351341339650221_n.jpg (Size: 37.87 KB / Downloads: 12)

  biosimage.bin (Size: 6 MB / Downloads: 1) ]]>

Hello i am having some problem with my CFG here is my bin file. I can't extract the text file the error I get is Protocol: unknow i am using setup_var . method

  291886117_557336102783102_7542351341339650221_n.jpg (Size: 37.87 KB / Downloads: 12)

  biosimage.bin (Size: 6 MB / Downloads: 1) ]]> https://www.bios-mods.com/forum/Thread-Request-Thinkpad-E14-Unlock-DVMT-settings-or-set-default-DVMT-to-64M Tue, 05 Jul 2022 23:06:44 -0400 ly4dsg]]> https://www.bios-mods.com/forum/Thread-Request-Thinkpad-E14-Unlock-DVMT-settings-or-set-default-DVMT-to-64M Please help me to unlock DVMT settings or just set the default DVMT to 64M. Many thanks!

Specifications:
Lenovo Thinkpad E14
Intel Core i5-10210U 1.6GHz
Intel UHD Graphics
Phoenix UEFI BIOS version 1.14

The BIOS dumped by a programmer has been attached.

  thinkpad_e14_bios_backup-2.bin.zip (Size: 7.24 MB / Downloads: 8) ]]> Please help me to unlock DVMT settings or just set the default DVMT to 64M. Many thanks!

Specifications:
Lenovo Thinkpad E14
Intel Core i5-10210U 1.6GHz
Intel UHD Graphics
Phoenix UEFI BIOS version 1.14

The BIOS dumped by a programmer has been attached.

  thinkpad_e14_bios_backup-2.bin.zip (Size: 7.24 MB / Downloads: 8) ]]> https://www.bios-mods.com/forum/Thread-BIOS-unlock-for-ThinkPad-T430u Sat, 26 Feb 2022 23:47:58 -0500 pdubya]]> https://www.bios-mods.com/forum/Thread-BIOS-unlock-for-ThinkPad-T430u
Thanks.]]>
Thanks.]]> https://www.bios-mods.com/forum/Thread-REQUEST-ThinkPad-L380-unlock-CFG-Advanced-Menu Thu, 27 Jan 2022 02:33:09 -0500 margono]]> https://www.bios-mods.com/forum/Thread-REQUEST-ThinkPad-L380-unlock-CFG-Advanced-Menu please unlock CFG & Advance Menu for my ThinkPad L380

L380_BIOS]]> please unlock CFG & Advance Menu for my ThinkPad L380

L380_BIOS]]>