1.2 System Unit Components 1 Hardware Overview
Satellite A100/A105 / TECRA A7 Maintenance Manual 11
BIOS ROM (flash EEPROM)
y 8Mb x 1 chip (1024KB flash parts)
− 40Kb used for EC BIOS
− 35Kb used for PNP
− 3Kb used for display
− 15Kb used for logo
− 16Kb used for setup
− 10Kb used for setup nodes
− 1Kb used for decompress code
− 1Kb used for boot block
− 2Kb used for TPM
− 64Kb used for
− 23Kb used for miser
− 237Kb used for VGA BIOS
− 42Kb used for PXE
− 14Kb used for string
− 47Kb used for ROMEXEC
− 133Kb used for BIOS code
− 6Kb used for mini loader
System controllers
y North Bridge: Intel 945 GM/PM/940GML
− CPU interface and control
− System Memory Support
− PCI Express* Graphics (PEG) Interface
− Integrated Display Interface Support
− Internal Graphics Features
− Direct Media Interface (DMI)
− Power Management
− Serial ATA Interface
− ICH7 Audio Control
− SMBus 2.0/SMLink Interface
y South Bridge: ICH7-M
− Direct Media Interface (DMI)
− PCI Express* Interface
− Serial ATA (SATA) Controller
