IBM PC AT Troubleshooting Guide: Difference between revisions

Revision as of 00:16, 16 July 2026 edit Josh (talk \| contribs) Bureaucrats, Interface administrators, Moderators, Suppressors, Administrators 6,546 edits Expand troubleshooting: RIFA/tantalum + Dallas/planar battery (161/163) + POST codes; cited ← Older edit		Latest revision as of 13:06, 16 July 2026 edit undo Josh (talk \| contribs) Bureaucrats, Interface administrators, Moderators, Suppressors, Administrators 6,546 edits Add representative photo (Wikimedia Commons, attributed on file page)
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			[[File:IBM PC AT (photo).jpg\|thumb\|right\|300px\|IBM PC AT. Source: Wikimedia Commons.]]
	This guide covers diagnostic procedures for the IBM PC AT (5170), including POST audio and numeric error codes, hard drive faults, the well-documented 601 / CMOS battery / CMI HDD issues, and other known AT-specific problems.		This guide covers diagnostic procedures for the IBM PC AT (5170), including POST audio and numeric error codes, hard drive faults, the well-documented 601 / CMOS battery / CMI HDD issues, and other known AT-specific problems.