Lenovo Thinkpad T450s (Phenobopeep)


This IBM Thinkpad model is a portable computer, with powerful CPU and graphics. The VGA adapter is suited to an external monitor. The built-in screen has a screen resolution of 1920 x 1080, also known as FHD, and The IPS technology provides a display that is bright and clear.

This laptop computer is configured to boot ArcaOS. ArcaOS 5.0 has modifications specifically to support this computer. Nevertheless, Wifi and USB 3.0 are not yet supported.

Support for an external WiFi bridge is installed.

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.

The computer arrived on Dec. 17, 2018. The hardware maintenace manual explains how to upgrade the hard drive.

The installed BIOS is 1.33 and the EC is 1.04. The current BIOS is 1.35 and EC is 1.04. I decided not to update the BIOS to the current level with the BIOS update CD. The video displays on an external monitor without issues.

I made sure that BIOS is set to Config->USB->USB 3.0 Mode = Disabled; Otherwise ArcaOS 5.0.4 USB stick would not successfully boot. I set the Display is set to Analog VGA, so that display goes to external monitor if one is connected. It is normally important to disable Hyper-Threading, however, there is no way to do that on this BIOS.

The built-in video is supported by the Panorama video driver version 1.14 or later.

Hard drive preparation

The Lenovo Hardware Maintenance Manual says to turn off the internal battery before opening the case, then remove 8 screws and pry 8 tabs to open the entire back of the case. The drive was easily replaced.

ArcaOS Installation

I booted the ArcaOS USB stick, and in System Maintenance, I prepared the hard drive. Then I used AOSBOOT to install the ArcaOS installer on the hard drive as drive X: (FAT16, 2000 MB).

I installed one bootable volume, P:. The P: drive has a Custom installation that is on the minimal side.

Sound is working normally on the laptop. Audio works well, but external speakers or headphones are required. The following modification is needed to enable sound.

Driver=K:\MMOS2\UNIAUD32.SYS /A:1

A fix included in ACPI 3.23.10 and later allows DOS Full-Screen to work. Alt-Home from a DOS Full-Screen then allows a DOS Window to work.

Using Suntan Special I run sequences ArcaOS50, apps, games and cleanup. This is saved as the Factory image. This is normally what would be supplied on the computer.

External WiFi

There is not yet support for the internal WiFi. Instead, support for three external WiFi devices, the VIX mini, the Asus RP-N12 Wireless N300 Range Extender and the TP-Link Nano Router is provided.

Instructions and details about external WiFi: http://www.blondeguy.com/TravelRouters.html

External Monitor

If am external monitor, then this is how it will work. The computer is set to the native screen of 1920 x 1080. If your monitor is the same, then nothing needs to be done to switch to and from an external monitor. If the computer monitor is different than 1920 x 1080, then the screen resolution can be adjusted to the optimal values. For example, I tested with a computer monitor with a resolution of 1920 x 1200. When I switch to my external monitor, the computer changes to 1600 x 1200. I enter 1920 x 1200 into the screen applet and reboot for optimum resolution. When I switch to the built in display, the same action is needed.


The USB 2.0 ports support keyboards, mice, scanners, thumb drives, cameras, MP3 players, external hard drives, floppies and CD Writers.

The laptop can use any memory left over from 32-bit usage as a RAM drive. For 8 GB RAM models, this RAM drive has 4.7 GB, and is formatted HPFS.


This laptop boots to the desktop in under 60 seconds. That's important, because suspend/resume does not work. To make up for that, the laptop can do a clean power down when the lid is closed.

There is no ArcaOS support for the bluetooth, internal WiFi, USB 3.0 or fingerprint reader. Support for the internal WiFi, USB 3.0 is under development at Arca Noae.


Suntan Special

I use Suntan Special to install the software on all Blonde Guy computers. Suntan Special software can be used to install all updates to the system and its applications and to install additional applications. When newer versions of software are released, Suntan Special can keep your Blonde Guy computer up to date.

Recovery USB stick

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


DFSee is a generic disk, partition and filesystem utility for maintenance and data-recovery. It supports partition tables (FDISK, LVM), FAT, FAT32, HPFS, NTFS, and partly JFS, EXT2/3 or REISER filesystems. DFSee is commercial software which requires a license key for continued use.


Physical Dimensions

Height: 0.8 inch
Width: 13.0 inches
Depth: 8.9 inches
Weight: 3.48 lbs

Power Consumption

Power consumption is 16 Watts, measured with the computer booted to the desktop. This computer consumes less than 1 Watt if it's plugged in, but switched off. When charging a depleted battery, it consumes up to 45 Watts.


Front and Right

Phenobopeep Front and Right


Phenobopeep Right


Phenobopeep Left

Back with cover off

Phenobopeep Rear


Phenobopeep Screen

Disk Layout

The disk is partitioned to provide two bootable partitions, one for use as a server and including SAMBA server, and the other is set up for as a tradtional NetBIOS networking using the IBM File and Print client. User data is stored on a separate volume.

This is the layout for a Seagate Hybrid 2 GB hard drive.

Volume NameDisk FormatDrive LetterVolume SizeDisk Name
InstallerFAT16 X:2,000 MBSeagate 2TB SSHD
ArcaOS-P JFS P:10,001 MBSeagate 2TB SSHD
Data JFS D:1,847,717 MBSeagate 2TB SSHD

ArcaOS version

ArcaOS 5.0.4 (July 25, 2019) is the version used for this installation. This is the output of the version command.

For the ArcaOS-P volume:

Installed Component Name                          Version  Service Level  Drive
OS/2 Base Operating System                        4.52     XR0C008        P:
Base Device Drivers                               4.52     XR0D005        P:
Base Networking (MPTS)                            6.01     WR08709        P:
Internet Applications (TCP/IP)                    4.32     UN02335        P:

Performance Benchmarks

This table reports the SysBench 0.9.5 benchmarks for this computer. You can download SysBench 0.9.5 here: http://hobbes.nmsu.edu/

PM-Graphics-marks 197
CPU integer-marks 8583
CPU floating point-marks 825
DIVE-marks 10059
File I/O-marks 113117
Memory-marks 9682


To buy this computer, fill out an order form and submit it to Blonde Guy. Blonde Guy will review your order and send you an invoice, payable using PayPal or any major credit card. If you prefer to pay by check, note that in the notes field of the order form, and I will e-mail you an invoice payable by check.

If you have questions, you may enter them in the notes portion of the order form.

The final price of the computer depends on tax, shipping and options.

An order for the computer is for the hardware as descibed on this page and for the software licenses.

ArcaOSCommercial $229
Personal $129
User's own copy $0

The ArcaOS License is available three ways. For a business, the comercial license is required. For most other uses, a Personal license is sufficient. If you already have an ArcaOS 5.0 license available for this machine, there is no charge for ArcaOS.

Last Modified: 2 Sep 2019
Graphics by Colorful Language
Copyright 2019 by Blonde Guy