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02D0:System cache error—cache
disabled
The primary cache internal to
the microprocessor has failed.
Call Dell for technical
assistance.
0251:System CMOS checksum
bad—default configuration used
The BIOS has been changed.
CMOS has been corrupted or
modified, possibly by an
application program that
changes data stored in CMOS.
Reboot the computer. As soon
as you see the Dell logo
screen, press <F2> to enter the
system setup program and
reconfigure the system. If the
problem persists, call Dell for
technical assistance.
0230:System RAM failed at offset:
nnnn
System RAM failed at address
nnnn in the 64-KB block at
which the error was detected.
Call Dell for technical
assistance.
0260:System timer error
A chip on the system board
may be malfunctioning.
Run the System Set test group
and the Keyboard Controller
Test in the Dell Diagnostics.
Avoiding IRQ Assignment Conflicts
Problems can arise if two devices attempt to use the same interrupt request (IRQ) line. To avoid this type of conflict, check the documentation for the
default IRQ line setting for each installed device. Then consult Table 2 to configure the device for one of the available IRQ lines.
NOTES: Installed devices cannot share the same COM port address. The default address of your computer's serial port is COM1.
To view IRQ line assignments in the Microsoft® Windows® 95 and Windows 98 operating systems, click the Start button, point to Settings, and
click Control Panel. Double-click the System icon. Select the Device Manager tab, and then double-click Computer.
Table 2. IRQ Line Assignments
IRQ Line Assigned Device
IRQ0 Reserved; generated by the system timer
IRQ1 Reserved, generated by the keyboard controller
IRQ2 Cascade from the secondary interrupt controller
IRQ3 Available
IRQ4 Serial port; available if serial port is not configured for COM1 or COM3
IRQ5 Available
Error Messages, IRQs, and Memory Assignments: Dell Latitude LS Portable Computers User's Guide
file:///C|/Documents and Settings/Administrator/Desktop/New Web/Documentation/LS/LS User's Guide/error.htm (4 of 7) [5/31/2000 9:49:18 AM]