8–2 Troubleshooting
Beep Codes
8.2 Beep Codes
The beep codes provide error information about the AlphaPC 164SX system.
Table 8–1 lists and describes the beep codes.
8.3 Post Codes
The post codes indicate the progress of the SROM and SRM Console 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 3)
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
0C Memory sized and memory bank 0 written
0D Enable Dcache
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
17 System ROM loaded to memory
18 Icache flush code written to memory
19 CPU errors cleared; jump to system code
20 ISA bus reset
