This comprehensive guide explains how to upgrade the memory on an IBM PC XT motherboard, specifically focusing on expanding it to a maximum of 1MB. It covers various aspects of the process, including introducing the upgrade project, listing the required components, explaining the concept of high memory in vintage computing, providing step-by-step installation instructions, detailing the replacement of the IC U44 with a GAL chip, and exploring different memory configurations and SW2 settings. The guide also includes essential circuit details and considerations for clones and XT-compatible systems.

Installing Fedora on LG Gram Notebook The LG gram is a very powerful and at the same time incredibly light notebook. As a Linux user, I of course immediately installed Fedora on the laptop and had to realise, to my disillusionment, that one or two things do not run as smoothly as I had hoped. During charging via USB-C, several kernel tasks spawn that place a heavy load on the CPU.

An undocumented procedure allows a factory reset of APC Network Management Cards without the special stereo jack serial cable claimed to be necessary according to the official manual.