User`s manual

SAS / SATA II NAS System
User’s Manual
87
Chapter 6 System Maintenance
RAID Subsystem
6.1 Upgrading the RAID Controller’s Cache Memory
The RAID controller is equipped with one DDRII SDRAM socket. By default, the RAID
controller comes with 512MB of memory that is expandable to a maximum of 4GB. The
expansion memory module can be purchased from your dealer.
Memory Type: 1.8V PC5300/4200 DDR2 SDRAM 240pin ECC.
Memory Size: Supports 240pin DDRII of 512MB, 1GB, 2GB, or 4GB.
6.1.1 Installing Memory Module
1. Shutdown first the NAS system and unplug all power cords.
2. Press the push button lock on the top cover, and pull the top cover handle
towards the rear. Then remove the top cover.
3. Remove the memory module from the RAM socket of the RAID controller by
pressing the ejector clips until the memory module pops out of the socket.
4. Align the new memory module into the socket. Make sure the notch is aligned
with the key on the socket itself. With the ejector clips in open position, press
down the memory module into the socket until it sinks into place. The ejector
clips will automatically close to lock the memory module.