Monthly Archives: November 2014

Windows 8.1 Startup Bugcheck 0xC4

On some systems, both physical and virtual, 64-bit Windows 8.1 as well as Server 2012 R2 consistently crashes with error code (bug check) 0xC4; 64-bit Windows 8 may run on these same systems without trouble. On physical systems, the BSOD … Continue reading

Posted in Bugs, Microsoft, NT, VirtualBox | 9 Comments

ThinkPad 850 Hardware Maintenance Manual

Thanks to a very helpful reader (Mike Senior—thanks!), the OS/2 Museum can now publish the ThinkPad Power Series 850 Hardware Maintenance Service and Reference manual in the form of a PDF. This is IBM document number 30H2383. The manual might … Continue reading

Posted in Documentation, PowerPC, ThinkPad | 5 Comments

A Tale of Two Displays

By sheer coincidence, two new computers arrived in my family at almost the same time, and they couldn’t be more different. At first sight, the most striking difference is the quality of their displays, and it says a lot about … Continue reading

Posted in Apple, Graphics, PC hardware | 9 Comments

Original CEMM Unearthed

An important fragment of PC history was unearthed a few days ago: An image of a Compaq Deskpro 386 supplemental disk from August 1986, containing among other things CEMM.EXE, Compaq’s original expanded memory emulator shipped with the Deskpro 386. The … Continue reading

Posted in 386, Compaq, DOS | 25 Comments

Site Update

In the past two weeks or so, I’ve been fighting with the site instead of adding content. The hosting company was complaining of too high resource usage on a shared server… but was unable to provide me with detailed access … Continue reading

Posted in Site Management | 8 Comments