Chapter 1 Hardware Configuration 3
Specifications
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System
• CPU: 80486SX-25, 80486SX-33, 80486DX-33, 80486DX2-50,
80486DX2-66, or 80486DX4-100
• Bus interface: ISA (PC/AT) bus
• System performance:
150 MHz with an 80486DX-33 MHz CPU (Landmark speed V1.14)
• Data bus: 32-bit
• DMA channels: 7
• Interrupt levels: 15
• Processing ability: 32-bit
• Bus speed: 8 MHz
• Chipset: ALI M1219
• Real-time clock/calendar:
Uses DS-12887 RTC chip and quartz oscillator, powered by a
lithium battery for 10 years of data retention
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Memory
• DRAM memory: 1 MB to 32 MB
Uses 256Kx36 (SIMM-256-8), 1Mx36 (SIMM-1000-8) or 4Mx36
(SIMM-4000-8) SIMMs with access time of 80 ns or less
• Shadow RAM memory: Support for system and video BIOS of up
to 256 KB in 32 KB blocks
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I/O
• IDE hard disk drive interface: Supports up to two IDE (AT bus)
hard disk drives. BIOS enabled/disabled
• Floppy disk drive interface:
Supports up to two floppy disk drives, 5¼" (360 KB and 1.2 MB)
and/or 3½” (720 KB and 1.44 MB). BIOS enabled/disabled
Summary of Contents for PCA-6143P
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