Toshiba A1 User Manual

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1  Hardware Overview 
1.2  System Block Diagram 
 
The PC contains the following components. 
 CPU 
Intel
®
 Mobile Pentium
®
4-M model 
•  1.80/1.90/2.00/2.20GHz (Internal clock: 1.80/1.90/2.00/2.20GHz, Bus: 
400MHz, Core voltage: 1.30/1.20V, Built-in NDP) 
•  Internal cache memory:     12KB (in CPU) 
•  Secondary cache memory: 512KB (in CPU) 
Intel Mobile Celeron model 
•  1.80/2.00/2.20GHz (Internal clock: 1.80/2.00/2.20GHz, Bus: 400MHz, Core 
voltage: 1.30V, Built-in NDP) 
•  Internal cache memory:      12KB (in CPU) 
•  Secondary cache memory: 256KB (in CPU) 
 Memory 
Two memory slots capable of accepting 128MB, 256MB or 512MB memory modules 
for a maximum of 1GB. 
•  200-pin DDR-SDRAM (PC2100) 
•  Pipeline configuration 
•  3.3V operation 
•  Support PC133 
 BIOS ROM  
•  8Mbit (Flash memory) 
−  64KB used for logo 
−  32KB 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 
−  128KB are reserved 
•  5.0V operation 
•  Access time : 120 ns or 90 ns 
•  Data transfer: 8-bit 
1-6 
  Satellite A10/TECRA A1/Satellite Pro A10  Maintenance Manual (960-445)