Compaq Compaq Evo Desktop, 177620-006 manual ROM Bios

Post Error Messages

Numeric Codes and Text Messages

Code/Message	Beeps	Probable Cause	Recommended Action
1801	None	Processor is not	Upgrade BIOS to proper
		supported by	version.
		ROM BIOS.
1998-Master	1L, 2S*	The previously saved	Run Computer Setup and
Boot Record has		copy of the MBR has	save the MBR of the current
been lost.		been corrupted.	bootable disk.
1999-Master	1L*	The current MBR	Use extreme caution. The
Boot Record has		does not match the	MBR may have been updated
changed.		previously saved copy	due to normal disk maintenance
		of the MBR.	activities (disk manager, fdisk,
			or format). Replacing the
			previously saved MBR in such
			situations can cause data loss.
			If you are certain the MBR
			change is unintentional and
			undesired (e.g. due to a virus),
			then run Computer Setup and
			restore the previously saved
			MBR copy. Otherwise, run
			Computer Setup and either
			disabled MBR security or
			save the MBR of the current
			bootable disk.

2000-Master	1L, 2S*	The current bootable
Boot Record		hard drive is not the
Hard Drive has		same as the one that
changed.		was present when
		MBR Security was
		enabled.

Run Computer Setup and either disable MBR security or save the MBR of the current bootable disk.

*L = Long, S = Short

A–12 Troubleshooting Guide