Toshiba Portege 2000 Maintenance Manual page 18

1 Hardware Overview
The PC contains the following components.
CPU
Pentium III-ULV
• A 750/350MHz Pentium III processor with a 750/350MHz internal clock,
100MHz bus and 1.10V/0.95 core operation voltage (built-in NDP).
• Internal cache memory: 16KB Data and 16KB Instruction, Write-Back
• Secondary cache memory: 512KB (in CPU)
Memory
One memory slot capable of accepting 256MB-memory module for a maximum of
512MB.
• 3.3V operation
• 140-pin exclusive memory board
• Access time : 6ns
• Memory Supporting PC-133(Operation is PC100)
BIOS ROM (Flash memory)
• 4Mbit (256K×16-bit chip)
− 64KB used for logo
− 64KB used for setup and checksum
− 128KB used for system BIOS
− 64KB used for VGA-BIOS
− 64KB used for ACPI
− 8KB used for PnP
− 8KB used for password security
− 16KB used for booting
− 64KB used for LAN
− 32KB are reserved
• 5.0V operation
• Access time : 120 ns or 90 ns
• Data transfer: 8-bit
1-6 Portege 2000 Maintenance Manual (960-333)
1.1 Features