HP Z1 G2 Maintenance And Service Manual page 76

Screen message
208—Mismatched DIMMs
detected
209—Memory warning condition
detected
212—Failed Processor 0
213—Incompatible Memory
Modules
214—DIMM Configuration
Warning
216—Memory Size Exceeds
Maximum Supported
301—Keyboard Error
303—Keyboard Controller Error
304—Keyboard or System Unit
Error
510—Splash Screen image
corrupted
511—CPU Fan not detected
515—CPU Overtemp occurred
68 Chapter 4 Diagnostics and troubleshooting
Probable cause
Installed DIMMs are improperly
matched.
Incorrect memory module type in use.
Processor has failed to initialize.
A memory module in the memory
socket identified in the error message
is missing critical SPD information, or
is incompatible with the chipset.
DIMMs are not installed correctly (not
paired correctly).
The amount of memory installed
exceeds that supported by the
hardware.
Keyboard failure.
I/O board keyboard controller is
defective or is not set properly.
Keyboard failure.
Splash Screen image has errors.
Fan is not connected or is defective.
Insufficient processor cooling or
processor defect.
Recommended action
Verify that matching DIMMs are installed.
Verify that the memory modules are compatible
with computer requirements.
1. Reseat the processor in its socket.
2. If the processor does not respond, replace it.
3. Replace the system board.
1. Verify the memory module type.
2. Insert the DIMM in another memory socket.
3. Replace the module with a DIMM conforming
to the SPD standard.
See the service label on the computer access panel
for the correct memory configurations, and reseat
the DIMMs accordingly.
1. Verify how much memory the computer
supports.
2. Remove the excess memory.
1. Reconnect the keyboard with the computer
powered off.
2. Connect a keyboard directly to the computer
(instead of through a switch box).
3. Be sure that none of the keys are pressed.
4. Replace the keyboard.
1. Reconnect the keyboard with the computer
powered off.
2. Connect a keyboard directly to the computer
(instead of through a switch box).
3. Replace the system board.
1. Reconnect the keyboard with the computer
turned off.
2. Connect a keyboard directly to the computer
(instead of through a switch box).
3. Be sure that none of the keys are pressed.
4. Replace keyboard.
5. Replace system board.
Update system UEFI.
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
1. If necessary, add a heatsink to the processor
and verify proper operation.