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Chapter 1 Hardware Configuration 3
Specifications
åSystem
• CPU: 80386SX-40 MHz, 80486SLC-33 MHz
• Bus interface: ISA (PC/AT) bus
• System performance:
51.9 MHz with an 80386SX-40 MHz CPU
• Data bus: 16 bit
• DMA channels: 7
• Interrupt levels: 15
• Processing ability: 32 bit
• Bus speed: 8 MHz
• Chipset: ALI M1217-40
• Real-time clock/calendar:
Uses Dallas DS-12887 RTC or equivalent chip and quartz oscillator,
powered by a lithium battery for 10 years of data retention
åMemory
• RAM memory: 1 MB to 16 MB
Uses 256Kx9 (SIMM-256-7), 1Mx9 (SIMM-1000-7) or 4Mx9
(SIMM-4000-7) SIMMs with access time of 70 nsec. or less
• Shadow RAM memory: Support for system and video BIOS of up
to 256 KB in 32 KB blocks
åI/O
• IDE hard disk drive interface: Supports up to two IDE (AT bus)
hard disk drives. Can be enabled/disabled
• Floppy disk drive interface:
Supports up to two floppy disk drives, 5.25” (360 KB and 1.2 MB)
and/or 3.5” (720 KB, 1.44 MB and 2.88 MB). Can be enabled/
disabled