LSI Series 518 6.2.3Step 3: Install Cache Memory

6.2.3Step 3: Install Cache Memory

Important: A minimum of 32 Mbytes of cache memory is required. The cache memory must be installed before the MegaRAID controller is operational.

Install cache memory DIMMs on the MegaRAID controller card in the cache memory socket. Use a 72-bit 3.3 V single-sided or double-sided 168-pin unbuffered DIMM. Lay the controller card component-side up on a clean static-free surface. The memory socket is mounted ﬂush with the MegaRAID card, so the DIMM is parallel to the MegaRAID card when properly installed. The DIMM clicks into place, indicating proper seating in the socket. The MegaRAID card is shown lying on a ﬂat surface below.

Figure 6.1 Installing DIMM Memory

6.2.3.1Installing or Changing Memory

Important: The battery pack harness or cable must be disconnected from J10 on the MegaRAID SCSI 320-2 Ultra320 card before you add or remove memory.

Perform the following steps to install or change memory:

1.Bring down the operating system properly. Make sure that cache memory has been ﬂushed.

You must perform a system reset if operating under DOS. When the computer reboots, the MegaRAID controller will ﬂush cache memory.

2.Turn the computer power off. Disconnect the power cables from the computer.

3.Remove the computer cover.

4.Disconnect the battery pack cable from the MegaRAID controller.

5.Remove the MegaRAID controller.

6-4	Hardware Installation