I take this rare IBM computer with an identity crisis and upgrade its CPU, its RAM and give it a little bit of DOSbased multitasking. This video is sponsored by PCBWay, for high quality PCBs and CNC machining, visit https://www.PCBWay.com!
IBM sold both the XT and the AT sidebyside, however, in September of 1986, IBM pulled a strange stunt and released the Personal Computer XT Model 286, or model 5162. This machine is odd in many ways: it had the same case as the XT, with its angled design, but inside, was an AT, using the same 80286 CPU as the original 6 Megahertz AT/5170 model. The 5162 was only in production for 10 months, making it a pretty rare machine, but also the cheapest IBM machine that was capable of running a true multitasking operating system like OS/2.

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CREDITS:
Thanks so much to Jacob for helping me out. He's not a sponsor of this video but I thought I'd mention his company, Monotech PC's. If you are looking for kit to rev up your retro life, then check his cool products at https://monotech.fwscart.com. He makes the NuXT PC, a Turbo XT in an ATX
form factor, the EternalCRT which is a Monochrome/CGA and EGA to VGA converter and the XTIDE Deluxe converter, which is a bootable Compact Flash and IDE interface expansion card for your PC or XT, as well as many other great stuff for your retro computing needs!

Links to supporting materials:
CtrlAltRees video part 1:    • 1986 IBM 5162 "XT 286" Restoration  ...  
CtrlAltRees video part 2:ttps://   • Upgrading The CPU  1986 IBM 5162 PC ...  
CtrlAltRees Video pt 3:    • 1986 IBM 5162 PC XT 286 Restoration U...  
Retrocmp.de 5162 page: https://www.retrocmp.de/ibm/5162/xt28...
Vintage Computer Federation post re using IBM XT/286 with Award BIOS, using the AMI BIOS Suitable for the 5170: https://forum.vcfed.org/index.php?thr...'>https://forum.vcfed.org/index.php?thr...
5170 BIOS page: http://www.minuszerodegrees.net/bios/...
5170 BIOS used in my video: https://www.minuszerodegrees.net/bios...
IBM 5162 Clock Generation schematic from minuszerodegrees: https://www.minuszerodegrees.net/5162...
IBM 5162 Relationship between CPU/NPU clocks schematic: https://www.minuszerodegrees.net/5162...
IBM 5162 for Beginners from minuszerodegrees: https://minuszerodegrees.net/5162/mis...

I also tried out this ATI VGAWonder 16 card for a while:
ATI VGAWonder 16: https://forum.vcfed.org/index.php?thr...'>https://forum.vcfed.org/index.php?thr...

00:00 Introduction
03:03 Sponsored Ad
04:06 The XT that was better than the AT
06:16 How to upgrade the 5162
07:41 RAM Upgrade
10:19 RAM configuration
11:38 The DOS memory map
13:41 Configuring the expansion RAM
15:04 My config.sys
15:45 Upgrading the BIOS
17:22 CPU Upgrade
25:36 Multitasking