X210 / X2100 Support

First time setting up

CMOS battery installation

The original X200/X201 CMOS battery is fully compatible with the X2100 motherboard. It’s installed next to the M.2 slot and should fit underneath the palmrest.

3K Panel BIOS settings

WARNING: Make sure the motherboard is unpowered when you install the panel and other peripherals. Please disconnect the power when you install any new hardware peripherals.

Adjusting this should help with panel glitches: BIOS > Advanced > CSM Settings and change video to UEFI.

Alternatively, turn off CSM if you intend to only use UEFI OS.

Voltage/Power Level adjustment

Check out this post for more info on performance and benchmarks.

PL1/PL2 adjustments

PLEASE DO NOT EXCEED 30W-35W FOR PL1 AS THERE HAS BEEN REPORTS OF FRIED MOSFET DUE TO HIGH PL1

  1. BIOS > Advanced > Power & Performance > CPU – Power Management Control > Config TDP configuration
  2. Change TDP Boot mode > Up
  3. Scroll down to custom settings Up, adjust PL1 and PL2 and PL1 time window (Tau)

Undervolt

  1. BIOS > Advanced > Overclocking Performance Menu
  2. Change Overclock feature to enabled
  3. Processor > Core/Ring
  4. Change Voltage offset to the voltage you want (90 = 90mV)
  5. Change Offset Prefix to negative for undervolt

Charger & Battery

This section only applies to 10th gen X2100 machines with stock BIOS only.

The motherboard doesn’t appear to play well with 4-cell batteries and aftermarket batteries. Please only use fresh 6/9-cell batteries for this laptop.

The X2100 motherboard appears to draw a high current on boot and the recommended charging brick is a 90W brick. The machine appears to boot and charge fine on certain >60W chargers, including the stock Lenovo charger (both barrel and USB-C versions) provided the machine has a battery attached. There are some 65W chargers that don’t seem to charge properly on a high PL1. Please lower the PL1 of the CPU in the BIOS if the system don’t seem to charge properly.

BIOS

4th batch X2100 Comet Lake BIOS

To update, install the driver with MEIsetup and run update.exe with administrator privilege on Windows. Turn off and unplug the machine for at least 1min before powering back on. MD5 is different from my website than from 51nb as I recompressed the files to save space.

I’ve uploaded the patched EC by jwise. It’s based on the latest 13 July 2020 BIOS. Only revert to previous BIOS if the latest BIOS does not seem to work properly for you. I’ve wrote about the EC updates here.

ReleaseDescriptionDownload/Link
Initial release
V15
Factory BIOS updateDirect link (MD5: 96ff06e072349f0
f4398205ace47
2c62)
Source
29 May 2020
V16
Resolves charging issues
Resolves sudden shutdown on battery
Battery can now be fully charged
Direct link (MD5: 9d2fc278240c59
b3a0a0a033a1e
8f330)
Source
2 June 2020
V21
Resolves sleep issue
Resolves internal mic issue
Direct link (MD5: b6179f2292e781
fc85095446d2f5
f70e)
Source
13 July 2020
V25
Resolves SD card issues
Resolves charging issues
Direct link (MD5: 213ceb5b5a3cb
181e59f8f5affe3
b438)
Source
4 September 2020
EC patched by jwise
Hotpatching / EC debugging support
Backlight table that allows backlight to go as low as 1%.
Correctly report battery state of charge on 9-cell and 4-cell batteries
Report power consumption from battery (“time remaining on battery”)
Fast charge 6-cell battery at 3A, and 9-cell battery at 4A. (X2100_V25 charged all batteries at 1.5A.)
Limit input power to 80W while charging battery. (X2100_V25 consumed up to 100W, which could cause trouble for 90W chargers.)
Direct link (SHA256:
17835d2c025a169b
02c2fdda90dd8ecdac
11d892fd4809b4e7
8ca69a6179791c)
Source
4 September 2020 EC patched by jwiseExactly the same as the BIOS above
CTRL and FN keys are swapped
Direct link (SHA256: 39cabaad7aea4d47
29070f2aa3a58837
802e58515ccff1026
cda6df616a51ae3)

X210 Kaby Lake-R BIOS

To update, run update with administrator privilege on Windows. Turn off and unplug the machine for at least 1min before powering back on. MD5 is different from my website than from 51nb as I recompressed the files to save space.

DateDescriptionDownload/Link
12 January 2019Added SLIC2.1 to the BIOS from 3 July 2018
Compatible with 2nd & 3rd batch X210
Direct link (MD5:
2e6c103c31
7bb707d45f
9a54404650a0)
Source

X2100 Motherboard Installation Guide

V1.0

Coreboot/EC

Coreboot has been ported to this machine by Matthew Garrett for 3rd batch and before X210 (8th gen Intel). It’s available here. In addition, a very helpful forum member vladisslav2011 has patched the embedded controller to fix a charging bug and both coreboot and the EC patch is compiled by harrykipper and available on his github repo here.

Drivers

Windows and Linux should automatically initialise the latest drivers. If trackpoint does not operate properly after sleep on Windows, force install the X201 driver in device manager.