Table 10-1  Numeric 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 
boot (memory added or removed).
Press the F1 key to save the memory changes.
164-MemorySize Error Memory conguration 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. Ensure memory modules are correctly 
installed.
2. Verify proper memory module type.
3. Remove and replace the identied faulty 
memory module(s).
4. If the error persists after replacing 
memory modules, replace the system 
board.
213-Incompatible Memory Module in Memory 
Socket(s) X, X, ...
A memory module in memory socket identied 
in the error message is missing critical SPD 
information, or is incompatible with the chipset.
1. Verify proper memory module type.
2. Try another memory socket.
3. Replace SODIMM with a module 
conforming to the SPD standard.
214-SODIMM Conguration Warning Populated SODIMM Conguration is not 
optimized.
Populate the SODIMMs so that each channel has 
the same amount of memory.
219-ECC Memory Module Detected ECC Modules 
not supported on this Platform
Recently added memory module(s) support ECC 
memory error correction.
1. If additional memory was recently 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 o.
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 o.
2. Replace the system board.
304-Keyboard or System Unit Error Keyboard failure. 1. Reconnect the keyboard with computer 
turned o.
2. Ensure that none of the keys are 
depressed.
104 Chapter 10   POST Error Messages