IBM 865741Y Handbook - Page 169

POST Beep Codes Beep Code 2-1-3 2-1-4 2-2-2 2-3-2 2-3-3 3-1-1 3-1-2 3-1-4 3-2-4 3-3-1 Probable Cause Primary interrupt mask register test failure Secondary interrupt mask register test failure Keyboard controller test failure Screen memory test in progress or failure Screen retrace tests in progress or failure Timer tick interrupt test failure Interval timer channel 2 test failure Time-of-day clock test failure Comparing CMOS memory size against actual Memory size mismatch occurred Chapter 5. Solving Problems 151