Blonde Guy

Home Products Computers Suntan Special ArcaOS OS/2 Contact

Lenovo ThinkCentre M920 Tower (Argon)

Argon Front

Overview

The Lenovo M90t tower computer is compatible with ArcaOS. Built-in video, sound, network, and USB all function under ArcaOS 5.1. The computer features M.2 NVMe drive support on the motherboard, tool-free installation of SATA hard drives and an assortment of PCIe slots.

The computer features 20 processing cores with hypertheading turned off.

Order this computer

If you want to buy this computer, or something similar, let me know via the contact page. ArcaOS has progressed to the point of working with many new computers.

Blonde Guy Contact Page

Specifications

Manufacturer: Lenovo
Model: ThinkCentre M90t Gen 5
Model number: 12V2000BUS
Year introduced: 2024
CPU: Intel(R) Core(TM) i7-14700
RAM: 16.0 GB
Hard drive: 500 GB NVMe SSD
Optical drive: Lenovo DVD-Multi player drive
Network: Intel Gigabit Ethernet using MultiMac32-E1000E driver
Audio: Intel audio with line out and line in using UniAud driver
USB ports: 11 (5 front, 4 back)
USB controllers: 0 UHCI, 0 OHCI, 0 EHCI, 1 XHCI
Video ports: 3 DisplayPort, 1 HDMI
Video controller: Intel(R) UHD Graphics 770
Boot Type:UEFI ESP

Physical Dimensions

Height: 14.3 inches
Width: 6.7 inches
Depth: 11.7 inches
Weight: 14.3 lbs

Power Consumption

Power consumption is 28 Watts, measured with the computer is booted to the ArcaOS desktop. During startup, the computer momentarily uses an incredible 265 Watts. This computer consumes less than 1 Watt if it's plugged in, but switched off.

Lenovo PSREF page

ThinkCentre M90t Gen 5

Disk Layout

Volume NameDisk FormatDrive LetterVolume SizeDisk Name
EFI_System_1 FAT32 Y: 260 MBGPT Disk 1
MS Reserved N/A N/A16 MBGPT Disk 1
Windows Basic NTFS N/A100,000 MBGPT Disk 1
ArcaOS C: JFS C: 20,000 MBGPT Disk 1
ArcaOS H: FAT32 H: 20,000 MBGPT Disk 1
ArcaOS D: JFS D: 200,000 MBGPT Disk 1
Linux ext4 N/A145,132 MBGPT Disk 1
Linux swap N/A N/A997 MBGPT Disk 1
Windows RecoveryN/A N/A2000 MBGPT Disk 1

ArcaOS version

ArcaOS 5.1.0 (August 26, 2023) is the version used for this installation.

Performance Benchmarks

The SysBench 0.9.5 program no longer works well enough to report its results. Blonde Guy has the source code and will fix the program when time permits. Until then, the only report will be CPU power from PassMark Software.

CPU: Intel(R) Core(TM) i7-14700
CPU Mark: 41,673

PCI devices

There are 16 PCI devices found by the PCI 1.04vkA program.

PCI IDDescription
8086:A740Bridge PCI to HOST
8086:A780Display VGA
8086:A71DData Aquisition & Signal Processing Other
8086:7AE0Serial USB (UHCI), programming interface 30
8086:7AA7Memory RAM
8086:7AF0Network Other
8086:7AE8Simple Communication Other
8086:7AEBSimple Communication Serial - 16550
8086:7AE2Storage Serial ATA (AHCI 1.0)
8086:7AC8Bridge PCI to PCI
8086:7A83Bridge PCI to ISA
8086:7AD0Multimedia Unknown!
8086:7AA3Serial SMBus Controller
8086:7AA4Serial Other
8086:1A1CNetwork Ethernet
144D:A80DStorage Unknown!

Software

Preloaded Software

Each Blonde Guy ArcaOS preloaded computer comes with a standard load of software. This page lists what is in the current pre-load. This list is updated over time to incorporate new essential OS/2 software as well as to keep up to date versions of existing software. When you receive your ArcaOS preloaded computer, you will have Blonde Guy's best installation of the latest OS/2 software.

Recovery DVD

The recovery DVD supplied is a bootable ArcaOS DVD with a backup of the hard drive as delivered. You can boot the machine from DVD, and perform maintenance functions. The maintenance folder is available on the recovery DVD. The factory backup is stored in the \Factory directory. The backups are simple zip files. You can use 7z or unzip to extract some or all of the files in a backup.

Build Notes

This section documents what I did to get this computer to work under ArcaOS. It is intended to show what goes into this computer, and also as a guide to the user who wants to build it himself.

Hardware

My customer ordered this machine from Lenovo in USA and had it delivered to my office.

Lenovo page describing the M920T that I configured.

BIOS settings

I made the following changes to the default BIOS settings. The change to the Boot Priority order cannot be done until ArcaOS is installed.

ArcaOS Installation

When ArcaOS is installed on a system utilizing UEFI, it may be configured to boot from an MBR disk (primary or logical partition) or from a GPT disk. In the GPT partitioning scheme, there are no concepts of primary or logical partitions. Instead, the ArcaOS emulation layer presents each GPT partition as a single MBR disk with a single drive letter and partition on it.

Because each partition is presented to OS/2 as a single MBR disk, OS/2 disk conventions are no longer a limitation for multiboot systems.

This computer had Windows 11 installed. I shrank the Windows 11 to make room for the other operating systems.

If I have fixed the disk using DiskUtility or other procedure, then I run Disk Utility again. If it says "No problems found.", then I proceed to lay out the disk paritioning that I want using "Manage Volumes (Graphical)".

Once volumes are laid out, I can proceed to install ArcaOS, or use the Blonde Guy Recovery DVD to restore a backed up ArcaOS installation.

Unlike some earlier Lenovo computers, this machine gives great resolution choices, both for Display Port and for HDMI.

Debian installation

Debian was installed to the remaining free space.

The following commands were needed to install ACS for i.

su root
visudo /etc/sudoers

At the end of the file, add this line and then press :x to save.

sudo apt-get install default-jre

I then used the file manager to copy the ACS installer from my ArcaOS file server. Once copied, I expanded the archive and changed the directory to Linux_Application. I entered the following commands to install ACS for i.

apt-get install dialog
./install_acs_64

I answered all questions in the affirmative to get a complete installation.

Windows 11

I created a user on Windows 11, then shrank the Windows partition to 100 GB. This made room to install the other two operating systems.

AN Launcher

I let ArcaOS install AN Launcher, which is their UEFI boot manager. AN Launcher presents a text menu that allows the user to choose to launch ArcaOS, Debian Linux or Windows 11. AN Launcher will launch ArcaOS by default. That can be changed by editing the AN Launcher configuration file, which is a plain text file.

Photos

Front

Argon Front

Back

Argon Rear

Interior shot with tool-free drive bays.

Argon Interior

Internal PCIe expansion slots

Argon Slots

Boot Menu

Argon Slots