Specifications

2.3.4 POST and Boot Messages
POST displays messages to alert you to errors in hardware, software, and
firmware. It also displays information about your system.
During POST, the system board speaker beeps to alert you to specific POST
steps. Two beeps signal the start of the time during which you can enter setup.
Another beep signals the end of that time, and then a subsequent beep signals
that a system boot has begun.
If an error occurs during POST, the countdown is stopped. If an error occurs
before the monitor is initialized, specific beep codes sound to alert you to a
problem. If an error occurs after the monitor is initialized, both the POST
number and the error message are displayed on the monitor.
Table 2–2 lists POST and boot messages by number.
Table 2–2 POST and Boot Messages
POST No. Error Name Description Solution
880 POST starts
860 Set processor speed for
POST
850 Chipset initialization 2
840 Chipset initialization 3
830 CPU register test
820 8742 initialization
810 Real-time clock RAM
and register test
Real-time clock RAM
and register test failure
Replace the real-
time clock chip.
800 System BIOS checksum
test
System BIOS checksum
failure
Replace the system
board.
790 Initialize programmable
interval timer
Programmable interval
timer failure
Replace the system
board.
780 DMA channel test DMA channel failure Replace the system
board.
770 DMA page register test DMA page register
failure
Replace the system
board.
760 Verify RAM refresh test RAM refresh failure Replace the system
board.
(continued on next page)
System Troubleshooting 2–5