IBM Netfinity 3000, User Handbook Manual

Page: 227 / 370

POST beep codes
POST beep code tables
In the following tables, the numbers indicate the sequence and
number of beeps. For example, a “2–3–2” error symptom (a burst of
two beeps, three beeps, then two beeps) indicates a memory module
problem.
If the following beep codes occur, have the system serviced.
Beep Code Probable Cause
1–1–3 CMOS write/read failure
1–1–4 BIOS ROM checksum failure
1–2–1 Programmable interval timer test failure
1–2–2 DMA initialization failure
1–2–3 DMA page register write/read test failure
1–2–4 RAM refresh verification failure
1–3–1 First 64 K RAM test failure
1–3–2 First 64 K RAM parity test failure
2–1–1 Secondary DMA register test in progress or failure
2–1–2 Primary DMA register test in progress or failure
2–1–3 Primary interrupt mask register test failure
2–1–4 Secondary interrupt mask register test failure
2–2–2 Keyboard controller test failure
2–3–2 Screen memory test in progress or failure
2–3–3 Screen retrace tests in progress or failure
3–1–1 Timer tick interrupt test failure
3–1–2 Interval timer channel 2 test failure
3–1–4 Time-of-day clock test failure
3–2–4 Comparing CMOS memory size against actual
3–3–1 Memory size mismatch occurred
Chapter 5. Solving problems
193