Post-Related Troubleshooting - HP proliant ML110 Operation And Maintenance Manual

Table 7-2: POST Beep Codes
Code
Eah
Ebh
Ech
Edh
Eeh
Efh
F0h
F1h
F2h
F3h
F4h
F5h
F6h
F7h
Note: If BIOS detects error 2C, 2E, or 30 (base 512 KB RAM error), it displays an additional
word-bitmap (xxxx) indicating the address line or bits that failed. For example, "2C 0002" means
address line 1 (bit one set) has failed. "2E 1020" means data bits 12 and 5 (bits 12 and 5 set) have
failed in the lower 16 bits. Note that error 30 cannot occur on 386SX systems because they have a
16 rather than 32-bit bus. The BIOS also sends the bitmap to the port-80 LED display. It first
displays the checkpoint code, followed by a delay, the high-order byte, another delay, and then the
low-order byte of the error. It repeats this sequence continuously.

POST-related Troubleshooting

Perform the following procedures when POST fails to run or display error messages/emit
beep codes.
During routine bootup
Check the following:
•
All external cables and power cables should be firmly plugged in.
•
The power outlet to which the server is connected is working.
•
The server and monitor are both turned on. (Power indicators should be illuminated.)
•
The display's contrast and brightness settings are correct.
•
All internal cables are properly connected and all boards firmly seated.
•
The processor is fully seated in its socket on the mainboard.
•
The heat sink-CPU fan assembly is properly installed on top of the processor.
•
Verify that the all memory modules are properly installed.
HP ProLiant ML110 Server Operations and Maintenance Guide
continued
Beep POST routine description
Initialize OEM special code
Initialize PIC and DMA
Initialize memory type
Initialize memory size
Shadow boot block
System memory test
Initialize interrupt vectors
Initialize run time clock
Initialize video
Initialize System Management Manager
Output one beep
Clear huge segment
Boot to Mini DOS
Boot to Full DOS
System Diagnostics
7-9