HP dc7800 tower manual Contact an authorized dealer or reseller for

Table A-1Numeric Codes and Text Messages (continued)

Control panel message	Description	Recommended action
		contact an authorized dealer or reseller for
		RTC battery replacement.
163-Time & Date Not Set	CMOS jumper may not be properly installed.	Check for proper placement of the CMOS
		jumper if applicable.
164-MemorySize Error	Memory amount has changed since the last	Press the F1 key to save the memory
	boot (memory added or removed).	changes.
164-MemorySize Error	Memory configuration incorrect.	1.	Run Computer Setup or Windows
			utilities.
		2.	Make sure the memory module(s) are
			installed properly.
		3.	If third-party memory has been added,
			test using HP-only memory.
		4.	Verify proper memory module type.
201-Memory Error	RAM failure.	1.	Run Computer Setup or Windows
			utilities.
		2.	Ensure memory modules are correctly
			installed.
		3.	Verify proper memory module type.
		4.	Remove and replace the identified faulty
			memory module(s).
		5.	If the error persists after replacing
			memory modules, replace the system
			board.
213-Incompatible Memory Module in	A memory module in memory socket	1.	Verify proper memory module type.
Memory Socket(s) X, X, ...	identified in the error message is missing	2.	Try another memory socket.
	critical SPD information, or is incompatible
	with the chipset.	3.	Replace DIMM with a module
			conforming to the SPD standard.
214-DIMM Configuration Warning	Populated DIMM Configuration is not	Rearrange the DIMMs so that each channel
	optimized.	has the same amount of memory.
219-ECC Memory Module Detected ECC	Recently added memory module(s) support	1.	If additional memory was recently
Modules not supported on this Platform	ECC memory error correction.		added, remove it to see if the problem
			remains.
		2.	Check product documentation for
			memory support information.
301-Keyboard Error	Keyboard failure.	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.
303-Keyboard Controller Error	I/O board keyboard controller.	1.	Reconnect keyboard with computer
			turned off.
		2.	Replace the system board.

50 Appendix A POST Error Messages ENWW