Lenovo M700/M900 BIOS mod to Coffee Lake CPUs
- Thread starter mobilenvidia
- Start date
Notice: Page may contain affiliate links for which we may earn a small commission through services like Amazon Affiliates or Skimlinks.
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.
Last edited:
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
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
Attachments
Hello,
Can you help me with the BIOS? I want to install an i5 7400 in my M700 Tiny
My backup file bios:
MX25L12873F BACK UP.Bin
drive.google.com
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
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
Any solution for the Wi-Fi card bug? ThanksHello,
Can you help me with the BIOS? I want to install an i5 7400 in my M700 Tiny
My backup file bios:
ThanksMX25L12873F BACK UP.Bin
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?
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?
Hello. I have an M700 SFF. My motherboard is an IH110MS. I would like to use an i3 9100 (B2 stepping). I tried running CoffeeTime, but it is not being recognized. Would you be able to share the BIOS ROM file?
Great thread.
Found using a merged M700 image a bit too uncertain, but managed to build Coreboot and go from 6400T to 7400T. Found a 9400T recently, and am now trying to get it to work.
I would suppose the Coreboot image I built with skylake, kaby lake and coffee lake support would have worked with a straight cpu swap, but I can't get the system to boot. I've now done the pin mod twice, but all I get is a quick green led and a short fan spin.
Is the cpu or the bios? Does it make a difference which Intel firmware binaries are used when building the Coreboot image, specifically the ME bin?
Found using a merged M700 image a bit too uncertain, but managed to build Coreboot and go from 6400T to 7400T. Found a 9400T recently, and am now trying to get it to work.
I would suppose the Coreboot image I built with skylake, kaby lake and coffee lake support would have worked with a straight cpu swap, but I can't get the system to boot. I've now done the pin mod twice, but all I get is a quick green led and a short fan spin.
Is the cpu or the bios? Does it make a difference which Intel firmware binaries are used when building the Coreboot image, specifically the ME bin?
Ok, I think that solves part of it.
Just tried flashing the build from post #333 and it indeed seems to post.. doesn't find usb devices or the hard drive, so just have to figure a proper build for myself with edk2.
Now just to figure out a working ME. At least I don't have to touch the tape
Hi, can you share your ME region? I have version 11.0.2.xxxx and it doesn't recognize my wifi card. Thanks in advance!