HP ProDesk 400 G7 SFF Maintenance And Service Manual page 101

Table 7-1 POST numeric codes and text messages (continued)
Control panel message
219-ECC Memory Module Detected ECC
Modules not supported on this Platform
301-Keyboard Error
303-Keyboard Controller Error
304-Keyboard or System Unit Error
501-Display Adapter Failure
510-Flash Screen Image Corrupted
512-Chassis, Rear Chassis, or Front Chassis
Fan not Detected
514-CPU or Chassis Fan not Detected
660-Display cache is detected unreliable
1720-SMART Hard Drive Detects Imminent
Failure
ENWW
Description
Recently added memory modules support
ECC memory error correction.
Keyboard failure.
I/O board keyboard controller.
Keyboard failure.
Graphics display controller.
Flash Screen image has errors.
Fan is not connected or might have
malfunctioned.
Fan is not connected or might have
malfunctioned.
Integrated graphics controller display cache
is not working properly and will be disabled.
Hard drive will soon fail. (Some hard drives
have a hard drive firmware patch that will fix
an erroneous error message.)
Recommended action
1. If additional memory was recently
added, remove it to see if the problem
remains.
2. Check product documentation for
memory support information.
1. Reconnect keyboard with computer
turned off.
2. Check connector for bent or missing
pins.
3. Be sure that none of the keys are
depressed.
4. Replace keyboard.
1. Reconnect keyboard with computer
turned off.
2. Replace the system board.
1. Reconnect the keyboard with
computer turned off.
2. Be sure that none of the keys are
depressed.
3. Replace the keyboard.
4. Replace the system board.
1. Clear CMOS.
2. Verify that the monitor is attached and
turned on.
Reflash the system ROM with the latest
BIOS image.
1. Reseat fan.
2. Reseat fan cable.
3. Replace fan.
1. Reseat fan.
2. Reseat fan cable.
3. Replace fan.
Replace system board if minimal graphics
degrading is an issue.
1. Determine if hard drive is giving
correct error message. Run the Drive
Protection System test under Using F2
POST numeric codes and text messages 93