3Com 3C13701 Installation Manual page 59

Hardware maintenance mainly involves SDRAM.
Follow this procedure to replace the SDRAM:
Figure 41 SDRAM card replacement process
Start
Prepare tools
Open chassis cover
Check SDRAM
card position
Remove SDRAM card
Install new
SDRAM card
Close chassis cover
End
SDRAMs are main board components that you can expand or upgrade as needed.
Generally, you need to do that in the following situations:
More memory is required for the upgraded application image, maintaining a large
■
routing table, or processing memory-consuming tasks.
The existing SDRAM is damaged.
■
You can see this banner at boot:
Router starts booting ... (V2.00)
***********************************************
*
* 3Com 5000 Routers Boot ROM, V9.13 *
*
***********************************************
Copyright(C) 1997-2003 by 3Com Corporation.
Testing memory...OK!
128M bytes DDR SDRAM
32768K bytes flash memory
Hardware Version is MTR 1.1
CPLD Version is CPLD 3.0
Press Ctrl-B to enter Boot Menu
Hardware Maintenance
*
*
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