User`s manual

8–2 Troubleshooting
Beep Codes
8. Reseat the DIMMs.
9. Replace the DIMMs.
8.3 Beep Codes
The beep codes provide error information about the AlphaPC 164LX system. Table
8–1 lists and describes the beep codes.
8.4 Post Codes
The post codes indicate the progress of the SROM and AlphaBIOS firmware. Table
8–2 lists and describes the post codes.
1
One beep and a pause, followed by two beeps and a pause, followed by three beeps.
Table 8–1 Beep Codes
Beep Code Description
1–2–3
1
This sequence represents the fail-safe booter startup.
4 No valid header found in ROM; loading entire ROM.
5 No memory found.
6 Checksum error detected when image was read back from memory.
Table 8–2 Post Codes
(Sheet 1 of 2)
Source
Post Code
(hex) Description
SROM 00 Firmware initialization is complete
01 CPU speed detected
02 CPU speed converted
03 Configuration jumpers read
04 Bcache configuration value computed
05 Bcache control value computed
06 Bcache turned off
0C Memory sized and memory bank 0 written
0F Bcache turned on
13 All of memory rewritten (good data parity written)
14 Memory errors cleared; start reading system ROM
15 Loading ROM without SROM decompression
16 Loading ROM using SROM decompression