Lenovo M700/M900 BIOS mod to Coffee Lake CPUs

[Hydron]

M720q was a lot cheaper and more available than M910x (or a M920q/x) in the UK. Will be keeping an eye out on ebay though for a 910x - got a couple more Xeons in the parts bin...

 

[eddbook]

I still have some minor issues with the video. The display output on the monitor sometimes disappears for a while, completely unpredictably. I have two M910x units, one with QNCT, the other with e-2286m. Both have the same video problems. I use one as a Proxmox server and it doesn’t matter (everything is fine over RDP), but I want to use the other as a desktop PC, and this display dropout is annoying.

I solved the problem with the disappearing image . The cause was insufficient cooling of the VR chips on the board. The CPU e-2286m is a "mutant", so it's a few millimeters thicker than a regular i5. The heatsink didn't reach the VR chips, and I had to add more thermal pads. For some reason, the CPU wasn't affected by this, only the GPU.

 

[ArminAustin200]

Hello everyone!
I've got a Lenovo M910x that I've been trying to get an RTX 3050 LP working on. I tried flashing the modded BIOS to it that unlocks the extra menus, and I've also modified the resistor on the 12V regulator for PCIe to deliver enough current to the GPU to have it work correctly.

No matter what I do though, the Maxsun RTX 3050 doesn't seem to want to detect in the BIOS. I have tested a Dell Radeon R7 250 in the Lenovo, and it detects as PCIe 4x gen 3 in BIOS no issues. The 3050 I've also tested in another system and confirmed it to be working. I have a link to where I posted about it originally, I'll also attach some pictures of the system and the BIOS config down below.

If anyone has any ideas in regards to getting the 3050 to initialize correctly on the M910x, please let me know

 

[Adam130694]

Can I use QQLS in m920x?

 

[sam.1970]

i have done m700 original bios mod from skylake to kaby/coffee lake all series since 2019.
i am working on a universal patch tool now.
for now who want to try modified bios, just upload bios dump with desired new cpu model, i can help with modification.

Hello,
Can you help me with the BIOS? I want to install an i5 7400 in my M700 Tiny
My backup file bios:

https://drive.google.com/file/d/1eCbMcELfFef0Mmrdp7kE7ZrJYkOq8Ne6/view?usp=drive_link

Thanks

 

[khanhnd]

Hello everyone,
I am planning to mod my M910Q to install an i5-8500T, but I am not sure which pins need to be covered. Based on a topic I found, there is an image suggesting that I should cover or connect the pins shown to make it work.
Could you please help confirm whether this is correct?
Thanks

 

[sam.1970]

Hello,
Can you help me with the BIOS? I want to install an i5 7400 in my M700 Tiny
My backup file bios:

https://drive.google.com/file/d/1eCbMcELfFef0Mmrdp7kE7ZrJYkOq8Ne6/view?usp=drive_link

Thanks

Any solution for the Wi-Fi card bug? Thanks

 

[RichB93]

Hi all,

I've just done modded my M900 Tiny using CoffeeTime 0.99, and the machine is posting with a U0 stepping i5 8500t, however it is seems slow and flaky - if I try to enter the BIOS it gets stuck at entering setup, and when trying to boot my OS, I see the GRUB menu being drawn block by block slowly. That being said, I've just power cycled it and it's not posting at all.

What am I doing wrong?

 

[ScApi]

Can anyone help with M710s bios, I cannot replace VBIOS with CoffeeTime it sticks with original 1001 version.

bios.BIN

drive.google.com