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f m Dell ® Latitude ® LM Service Manual Update This document updates information contained in the Dell Latitude LM Service Manual. New System Features Additional system features include: • Now available with a 166-MHz or 133-MHz Intel® Pentium® microprocessor with MMX™ technology in the Dell Latitude LM M166ST or Dell Latitude M133ST, which have the same features as other models of the computer. • Support for a maximum of 72 MB of system memory by installing a matched pair of 32-MB memory modules in the memory upgrade sockets on the main board. (The standard minimum configuration is now 8 MB of non- removable memory on the main board and two 4-MB memory modules in the memory upgrade sockets.) • Support for extended-data out (EDO) memory. Available in 4, 8, 16, and 32 MB modules which must be installed in matched pairs. • The Pentium microprocessor with MMX technology has twice the internal cache memory (32 KB) as the standard Pentium microprocessor. • A NeoMagic 2093 video controller for a video subsystem that includes 1.1 MB of video memory. • 6X or 10X CD-ROM drives. Production Note!!! Jeff, Do we want to mention CD-ROM speeds? Nancy Niland suggested that this line be removed, because the speeds change so often. • Your computer may not appear exactly as shown in some of the figures in the Service Manual. Conductive sponges or EMI shields may have been added. DELL CO NFIDE N TIAL - P r e liminar y 7/1 6 /97 Dell Latitude LM Service Manual Update F ILE L O CATIO N : S:\SYSTEMS\ESPMMX\MMX1SMTS\89710ts1.fm Technical Specifications The following information updates Table A-1, “Technical Specifications,” in Appendix A. Technical Specifications Mic r opr oce ssor Microprocessor type/speed . . . Intel Pentium microprocessor with MMX technology/ 133 or 166 MHz or Intel Pentium microprocessor/133 MHz Internal cache . . . . . . . . . . . . . 32 KB (Pentium microprocessor with MMX technology) or 16 KB (133-MHz Pentium microprocessor) External cache . . . . . . . . . . . . 256-KB write-back SRAM Math coprocessor . . . . . . . . . . internal to the microprocessor Memor y Architecture . . . . . . . . . . . . . . EDO Memory module capacities . . . . . . . . . . . . . . . . 4, 8, 16, and 32 MB; memory modules 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-pagemode modules are supported in matched pairs. EDO memory 4, 8, 16, and 32 MB; memory modules must be installed in matched pairs (two 4-MB modules, two 8-MB modules, two 16-MB modules, or two 32-MB modules) Standard RAM . . . . . . . . . . . . 16 MB (8 MB of nonremovable memory on the system board and two installed 4-MB memory modules) Maximum RAM . . . . . . . . . . . 72 MB Memory access time: tRAC . . . . . . . . . . . . . . . . 60 ns tCAC . . . . . . . . . . . . . . . . 15 ns Production Note!!! Jeff, Jean, Are the memory access times correct?? They were 70 and 20ns. DE LL CO NFIDE N TIAL - Pr eli m inary 7 / 16/ 97 Dell Latitude LM Service Manual Update FILE LOCATION: S:\ S YS T E MS \ E SP MM X\MM X1SM TS\89710t s 1 . f m Technical Specifications (continued) BIOS address . . . . . . . . . . . . . F000:0000 EDO Memory Architecture . . . . . . . . . . . . . . fast-page mode, two-way interleaved Memory module capacities. . . . . . . . . . . . . . . . . 4, 8, 16, and 32 MB; memory modules must be installed in matched pairs (two 4-MB modules, two 8-MB modules, two 16-MB modules, or two 32-MB modules) EDO memory 4, 8, 16, and 32 MB; memory modules must be installed in matched pairs (two 4-MB modules, two 8-MB modules, two 16-MB modules, or two 32-MB modules) Standard RAM . . . . . . . . . . . . 16 MB (8 MB of nonremovable memory on the system board and two installed 4-MB memory modules) Maximum RAM . . . . . . . . . . . 72 MB Memory access time: tRAC . . . . . . . . . . . . . . . . 60 ns tCAC . . . . . . . . . . . . . . . . 15 ns BIOS address . . . . . . . . . . . . . F000:0000 DELL CONFIDENTIAL - Preliminary 7/16/97 Dell Latitude LM Service Manual Update FILE LOCATION: S:\SYSTEMS\ESPMMX\MMX1SMTS\89710ts1.fm Technical Specifications (continued) Video Video type. . . . . . . . . . . . . . . . 64-bit (128-bit hardware accelerated) PCI Video controller . . . . . . . . . . . NeoMagic 2093 (systems with MMX technology) or NeoMagic 2070 Video memory . . . . . . . . . . . . 1.1 MB (systems with MMX technology) or 896 KB Battery Type . . . . . . . . . . . . . . . . . . . . lithium ion Dimensions: Height . . . . . . . . . . . . . . . . 22.0 mm (0.86 inch) Depth . . . . . . . . . . . . . . . . 219.0 mm (8.62 inches) Width . . . . . . . . . . . . . . . . 57.8 mm (2.27 inches) Weight. . . . . . . . . . . . . . . . . . . 0.44 kg (0.97 lb) Voltage . . . . . . . . . . . . . . . . . . 10.8 VDC Capacity . . . . . . . . . . . . . . . . . 42 WH Charge time (approximate):* Computer on . . . . . . . . . . . 4 hours Computer off . . . . . . . . . . 3 hours Operating time (approximate, with no power management...