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3-14 PathBuilder S24x, 26x, and 27x Switch Hardware Installation
Installing SIMMs
Installing SIMMs
Introduction This section explains how to install different types of SIMMs on the motherboard.
• DRAM: There are two types of DRAM:
- Global DRAM: This is memory that is accessible by all the boards in the
PathBuilder S24x, 26x, and 27x switch.
- Processor DRAM: This is memory dedicated to the PathBuilder S24x, 26x,
and 27x switch’s processor.
The PathBuilder S24x, 26x, and 27x switch motherboard comes with 8 Mbytes of
Processor DRAM and 4 Mbytes of Global DRAM. You can add additional DRAM
for a total of 8 Mbytes of Global and 16 Mbytes of Processor DRAM.
• FLASH: This is nonvolatile read/write memory.
• CMEM: This is nonvolatile (battery backed-up) configuration memory. This
is where the real time clock is located.
• Data Compression: This is optional SIMM that is used for data compression
functions.
Caution
Some components used in the PathBuilder S24x, 26x, and 27x switch are sensitive to
static electric discharges; static electric discharges can cause damage to internal
components. Use proper handling and grounding precautions whenever handling
cards and components.
Mise en Garde
Certains composants du PathBuilder S24x, 26x, and 27x switch sont sensibles aux
décharges électrostatiques qui peuvent les endommager. Prenez les dispositions et
précautions de mise à la terre nécessaires lors de la manipulation de cartes et de
composants.
Vorsicht
Einige im PathBuilder S24x, 26x, and 27x switch verwendeten Komponenten sollten
keinen elektrostatischen Entladungen ausgesetzt werden, durch die interne Bauteile
beschädigt werden können. Wenden Sie die entsprechenden Maßnahmen zur Erdung
und zum Schutz vor statischen Ladungen bei der Handhabung von Karten und
Komponenten an.