Lenovo PC 300GL Technical Information Manual 6272, 6282 - Page 15

System Board Features

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Chapter 2. System Board Features Chapter 2. System Board Features This section includes information about system board features. For an illustration of the system board, see "System Board" on page 13. Microprocessor The microprocessor in the PC 300GL (6272 and 6282) is the Intel Pentium Processor or the Intel Pentium Processor with MMX Technology. The microprocessor features are: Intel Pentium Processor - 8 KB write-through code cache (internal) - 8 KB write-back data cache (internal) Intel Pentium Processor with MMX Technology - 16 KB write-through code cache (internal) - 16 KB write-back data cache (internal) - Split power supplies (VIO = 3.3 V, VCORE = 2.8 V) - Support for Intel architecture MMX technology Superscalar architecture Branch prediction Power management capabilities Enhanced floating point capabilities 64-bit data bus, 32-bit address bus The system board operates with a 3.3 volt microprocessor. The microprocessor plugs directly into a 321-pin zero-insertion-force (ZIF) socket (Socket 7). Socket 7 allows for a performance upgrade. After installing an upgrade, the internal speed of the microprocessor is updated by setting switches on the system board. For information on switch configuration, see "Switches" on page 14. © Copyright IBM Corp. October 1997 3

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Chapter 2.
System Board Features
Chapter 2.
System Board Features
This section includes information about system board features.
For an illustration of the system board,
see “System Board” on page
13.
Microprocessor
The microprocessor in the PC
300GL (6272 and 6282) is the Intel Pentium Processor or the Intel Pentium
Processor with MMX Technology.
The microprocessor features are:
±
Intel Pentium Processor
–
8 KB write-through code cache (internal)
–
8 KB write-back data cache (internal)
±
Intel Pentium Processor with MMX Technology
–
16 KB write-through code cache (internal)
–
16 KB write-back data cache (internal)
–
Split power supplies (V
IO
= 3.3 V, V
CORE
= 2.8 V)
–
Support for Intel architecture MMX technology
±
Superscalar architecture
±
Branch prediction
±
Power management capabilities
±
Enhanced floating point capabilities
±
64-bit data bus, 32-bit address bus
The system board operates with a 3.3 volt microprocessor.
The microprocessor plugs directly into a
321-pin zero-insertion-force (ZIF) socket (Socket 7).
Socket 7 allows for a performance upgrade.
After
installing an upgrade, the internal speed of the microprocessor is updated by setting switches on the
system board.
For information on switch configuration, see “Switches” on page
14.
Copyright IBM Corp. October 1997
3