Lenovo PC 300PL Technical Information Manual 6275, 6285 - Page 17

L2 Cache, System Memory, System-Board Features

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Chapter 2. System-Board Features L2 Cache PC 300PL and PC 300GL computers are all equipped with a Pentium II microprocessor with MMX technology and 512 KB of L2 cache. The L2 cache ECC function is automatically enabled when ECC memory is installed. If nonparity memory is installed, the L2 cache ECC is disabled. (For information on overriding these settings, refer to Chapter 4, Configuration/Setup Utility Program, in Using Your Personal Computer.) System Memory The system memory interface is controlled by the 440BX chip set. Synchronous dynamic random access memory (SDRAM) is standard. The maximum amount of system memory is 384 MB. For memory expansion, the system board provides three dual inline memory module (DIMM) connectors. DIMM sizes of 16MB, 32MB, 64MB, and 128MB with a speed of 100 MHz are supported. The amount of memory preinstalled varies by model. The following information applies to system memory: SDRAM (synchronous dynamic random access memory), nonparity memory is standard. Error correcting code (ECC) DRAM is also supported. The maximum height of memory modules is 3.18 cm (1.25 in.). Only PC 100 industry-standard, gold-lead DIMMs are supported. A mix of ECC and nonparity types configures as nonparity. For information on the pin assignments for the memory module connectors, see "Memory Connectors" on page 52. The following figure shows some possible configurations for the supported DIMMs. Note: Values in the following table are represented in megabytes (MB). Chapter 2. System Board Features 5

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Chapter 2.
System-Board Features
L2 Cache
PC 300PL and PC 300GL computers are all equipped with a Pentium II microprocessor with MMX
technology and 512 KB of L2 cache.
The L2 cache ECC function is automatically enabled when ECC
memory is installed.
If nonparity memory is installed, the L2 cache ECC is disabled.
(For information on
overriding these settings, refer to Chapter 4, Configuration/Setup Utility Program, in
Using Your Personal
Computer
.)
System Memory
The system memory interface is controlled by the 440BX chip set.
Synchronous dynamic random access
memory (SDRAM) is standard.
The maximum amount of system memory is 384 MB.
For memory expansion, the system board provides
three dual inline memory module (DIMM) connectors.
DIMM sizes of 16MB, 32MB, 64MB, and 128MB
with a speed of 100 MHz are supported.
The amount of memory preinstalled varies by model.
The following information applies to system memory:
SDRAM (synchronous dynamic random access memory), nonparity memory is standard.
Error correcting code (ECC) DRAM is also supported.
The maximum height of memory modules is 3.18 cm (1.25 in.).
Only PC 100 industry-standard, gold-lead DIMMs are supported.
A mix of ECC and nonparity types configures as nonparity.
For information on the pin assignments for the memory module connectors, see “Memory Connectors” on
page 52.
The following figure shows some possible configurations for the supported DIMMs.
Note:
Values in the following table are represented in megabytes (MB).
Chapter 2.
System Board Features
5