Check Procedures 350163Date and Time IncorrectEnsure the time set in BIOS Setup iscorrect. See “Date and Time” on page 18.CMOS battery.0164Memory Size Change0201Memory Error at MMMM:SSSS:OOOOhInsert the memory modules in the DIMMsockets properly, then reboot the system.Memory module. See the “Step 005” of“Memory” on page 57 to replace memorymodule.System board.301PS/2 Keyboard Error or Keyboard NotConnected303PS/2 Keyboard Interface ErrorRe-connect PS/2 keyboard and mouse.Enter BIOS Setup and load the defaultsettings.PS/2 keyboardPS/2 mouseSystem board0662Onboard Floppy Drive I/O AddressConflict(s)0662Onboard Floppy Drive DMA Conflict(s)0662Onboard Floppy Drive IRQ Conflict(s)Enter BIOS Setup and load the defaultsettings.Remove all adapter cards that are NOTfactory-installed, then reboot the system.0662Floppy Disk Controller Error0662Floppy Drive A Error0662Floppy Drive B ErrorDiskette drive cable/connection.Diskette drive.System board0648Floppy Drive(s) Write ProtectedEnsure that the diskette drive is not set to[Write Protected] in the Security Optionsin BIOS Setup.Load default settings in Setup.Table 2-1 POST Error Codes and Messages List (Continued)NOTE: To diagnose a problem, first find the BIOS error messages or codes in leftcolumn. If directed to a check procedure, replace the FRU indicated in the checkprocedure. If no check procedure is indicated, the first Action/FRU listed in rightcolumn is the most likely cause.BIOS Error Codes, Messages Action/FRU