Dell LM P-133ST manual Timer circuit on main Faulty main board

Table 3-2. System Error Messages (Continued)

Message Definition Probable Causes

System CMOS checksum bad—run Setup

CMOS has been cor-	BIOS has been updated.
rupted or modified, pos-
sibly by an application
program that changes
data stored in CMOS.

System RAM failed at off- set: nnnn

Memory not operating correctly. System RAM failed at address nnnn in the 64-KB block at which error was detected.

Faulty or improperly seated memory mod- ule. Faulty main board.

System timer	Timer circuit on main	Faulty main board.
error	board malfunctioning.

Beep Codes and Error Messages 3-5