Post Numeric Codes And Text Messages - HP Compaq Pro 4300 Maintenance & Serice Manual

POST Numeric Codes and Text Messages

This section covers those POST errors that have numeric codes associated with them. The section
also includes some text messages that may be encountered during POST.
NOTE: The computer will beep once after a POST text message is displayed on the screen.
Table 10-1 Numeric Codes and Text Messages
Control panel message
ERROR: No boot disk has been detected or
the disk has failed.
Keyboard Error
511-CPU Fan not Detected
1720-SMART Hard Drive Detects Imminent
Failure
Unsupported CPU
Time & Date Not Set
144 Chapter 10 POST Error Messages
Description
The computer cannot read the boot sector
of the boot disk.
Keyboard failure.
CPU fan is not connected or may have
malfunctioned.
Hard drive is about to fail. (Some hard
drives have a hard drive firmware patch that
will fix an erroneous error message.)
Recently installed processor is not
supported by the system.
Invalid time or date in configuration
memory.
RTC (real-time clock) battery may need to
be replaced.
CMOS jumper may not be properly
installed.
Recommended action
1. Check drive data and power cables.
2. Use F10 Setup to make sure the first
boot device is set to drive C or the
primary hard drive.
3. The drive has failed due to mechanical
or virus corruption. Replace the drive.
1. Reconnect keyboard with computer
turned off.
2. Check connector for bent or missing
pins.
3. Ensure that none of the keys are
depressed.
4. Replace keyboard.
5. Replace the system board.
1. Reseat CPU fan.
2. Reseat fan cable.
3. Replace CPU fan.
1. Determine if hard drive is giving correct
error message. Enter Computer Setup
and run the Drive Protection System
test under Storage > DPS Self-test.
2. Apply hard drive firmware patch
if applicable. (Available at
http://www.hp.com/support.)
3. Back up contents and replace hard
drive.
Install a processor supported by your
system.
Reset the date and time under Control
Panel (Computer Setup can also be used).
If the problem persists, replace the RTC
battery.
Check for proper placement of the CMOS
jumper if applicable.