Toshiba Satellite A40 Maintenance Manual - Page 25
System Unit Block Diagram, Hardware Overview
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1.2 System Unit Block Diagram 1 Hardware Overview q Intel Montara-GT (North Bridge) • One Intel 82852GME is used. • Features: - Mobile Intel Pentium 4 processor and Intel Celeron processor System Bus Support - Supports Enhanced IntelSpeedStep technology - DRAM Controller supporting DDR333/DDR266/DDR200, 2GB max - Accelerated Graphics Port (AGP) Interface: Supports AGP 2.0 including 1×, 2×, and 4× - Up to 64MB of dynamic video memory allocation - 732-pin Micro-FCBGA (37.5×37.5 mm) q Intel ICH4-M (South Bridge) • One Intel 82801DBM is used. • This gate array has the following features: - Hub Link Interface - PCI Rev2.2 Interface (6 PCI REQ/GNT Pairs) - Enhanced DMA Controller, Interrupt Controller and Timer Functions - BusMaster IDE Controller (Ultra ATA 100/66/33) - USB 1.1/2.0 Controller 6 Ports (EHCI: Enhanced Host Controller) - I/O APIC - SMBus2.0 Controller - Firmware Hub (FWH) Interface (BIOS) - Low Pin Count (LPC) Interface (EC/KBC, Super I/O) - Serial Interrupt Controller - ACPI Power Management Controller - Deeper Sleep Support - AC'97 2.3 Interface - Internal RTC - Internal LAN Controller (WfM2.0) - Alert ON LAN (AOL) - 421-ball (31×31mm) BGA Package Satellite A40 Maintenance Manual (960-458) 1-9