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1 Hardware Overview 1.2 System Unit Block Diagram
BIOS ROM (flash E2PROM)
•
4Mb x 1 chip (512KB flash parts)
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29kb used for EC BIOS
−
46kb used for VGA BIOS
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29kb used for pxe boot
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4kb used for logo
−
7kb used for USB
−
14kb used for SCU
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2kb used for CF Card
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9kb used for PCI
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3kb used for ACPI
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14kb used for PNP
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35kb used for PM
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51kb used for system BIOS
−
10kb used for micro code
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2kb used for DMI
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4kb used for password
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24kb used for boot load
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156kb reserved
System controllers
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North Bridge: ATI RS250 M
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CPU interface and control
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DRAM control
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AGP master/slave interface (AGP1.0 compliant, AGP V2.0
compliant x 4 modes)
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Memory 256MB,Video RAM 64MB
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Memory 512MB,Video RAM 64MB
•
South Bridge: ATI IXP150
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Enhanced DMA controller
−
Interrupt controller
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Counter/timer
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PCI master/slave interface (PCI R2.2 compliant)
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PCI IDE controller
−
Support for ATA-100 (30/40/60/80 GB)
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USB interface
−
SMBus interface
−
LPC interface
−
Power management control
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Suspend/resume control
1-10 Satellite A60/ Pro A60 Maintenance Manual