IBM Netfinity 3500, Руководство пользователя

Страница: 168 / 294

POST Beep Codes
Power-On Self-Test (POST) Beep Codes
One beep and the appearance of text on the monitor indicates
successful completion of POST. More than one beep indicates that
POST detected an error.
Beep codes are sounded in a series of two or three sets of beeps.
The duration of each beep is constant, but the length of the pause
between the beeps varies. For example, a 1–2–4 beep code sounds
like one beep, a pause, two consecutive beeps, another pause, and
four more consecutive beeps.
It is possible to misinterpret beep codes if you do not understand
exactly how they work. Keeping in mind that POST beep codes
vary in the length of the pause, and not the duration of the beep
tones, will help you to distinguish the beeps.
POST Beep Code Table
For the following beep codes, 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. An x in an error message can represent any
number.
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
150
Netfinity 3500 User's Handbook