Dell LM User Manual

Dell® Latitude® LM

Documentation Update

T

his document updates information contained in the
online Dell Latitude LM User’s Guide and the Dell
Latitude LM Reference and Troubleshooting Guide.

N

ew Microprocessor Options

The Dell Latitude LM is now available with a
166-megahertz (MHz) or 133-MHz Intel
microprocessor with MMX™ technology.

Current application programs not designed specifically
for MMX technology should have a small improvement
in performance when run on a system with a Pentium
microprocessor with MMX technology. Software written
specifically to take advantage of MMX technology
(which will be labeled “Designed for Intel MMX”) will
have a greater improvement in performance, depending
on the type of application program.

The Pentium microprocessor with MMX technology has
twice the internal cache memory (32 kilobytes [KB]) as
the standard Pentium microprocessor.

To see the technical specifications of the new micro­processors, search on “microprocessor specifications” in
the online System User’s Guide. The online guide is in
the Dell Accessories folder or program group.

®

Pentium

®

N

ew Memory Module Support

The Dell Latitude LM now supports 32-megabyte (MB)
memory modules. With the 8 MB of standard non­removable memory on the system board and two 4-MB
memory modules standard with every Latitude LM, the
computer now supports a maximum of 72 MB of system
memory. The following memory module combinations
are possible:

•

24 MB — Install two 8-MB memory modules.

•

40 MB — Install two 16-MB memory modules.

•

72 MB — Install two 32-MB memory modules.

N

ew Memory Specifications

The Dell Latitude LM now supports extended-data o ut
(EDO) memory. EDO memory technology improves per­formance over fast-page-mode technology by using a
shorter page-mode cycle time while accessing data
within a single page of memory. See the following table
for the updated memory specifications.

www.dell.com

P/N 89180 Rev. A01 June 1997

®

Memory

N

ew Video Controller

Architecture. . . . . . . EDO

Memory module

capacities. . . . . . . . . 4, 8, 16, and 32 MB; must be

installed in matched pairs
(two 4-MB modules, two
8-MB modules, two 16-MB
modules, or two 32-MB
modules). Both EDO and
fast-page-mode modules are
supported in matched pairs.

Standard RAM . . . . 16 MB; 8 MB on system

board and two 4-MB EDO

memory modules installed
Maximum RAM . . . 72 MB
Memory access time:

tRAC . . . . . . . . 60 ns

tCAC . . . . . . . . 15 ns

BIOS address . . . . . F000:0000

NOTE: For the full name of an abbreviation or acronym used
in this table, see the Glossary in the online System User’s

Guide.

The Dell Latitude LM’s standard video subsystem now
includes 1.1 MB of video memo ry. For mor e infor mati on
about new video modes and resolutions, see “Using the
Display,” or search on “text modes” and “graphics
modes” in the online System User’ s Guide.

To see the technical specifications of the new video sub­system, search for “video specifications” in the System
User’ s Guide. The on line guide is in the Dell Accessories
folder or program group.

S

etup Program Changes

The following information updates Chapter 2, “Custom­izing System Features,” in the Reference and
Troubleshooting Guide:

•

The default setting for the
the Power menu is

•

ALARM RESUME TIME

The
tells the computer an exact time to resume normal
operation when it is in suspend mode .

AC POWER SAVE

OFF

.

option in the Power menu

option in