Lenovo ThinkPad 560E TP 560Z Technical Reference Manual - Page 9
System Board Devices and Features, IBM Personal System/2 Hardware Interface Technical Reference
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System Board Devices and Features Figure 1-2 lists the system board devices and their features. The IBM Personal System/2 Hardware Interface Technical Reference describes devices common to PS/2 products by type number. Device Microprocessor Level 2 cache System timers ROM subsystem RAM subsystem CMOS RAM subsystem Type - - 1 - - - Features Intel® Mobile Pentium® II Processor 233/300 MHz 32 KB on-chip cache 512 KB Channel 0: system timer Channel 1: refresh generation Channel 2: tone generator for speaker 128 KB by 4 banks (1 KB equals 1024 bytes) 32 MB. Expandable up to 96 MB. 64 MB. Expandable up to 128 MB. 128 bytes CMOS RAM with real-time clock/calendar Figure 1-2 (Part 1 of 2). System Board Devices and Features ThinkPad 560Z System Overview 1-3