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Part Number 10400152-101 03/2009

©2009 Overland Storage, Inc.

Page 3 of 5

Upgrade the Memory

Looking from the front of the 9100 chassis (

Figure 4

), the 

DIMMs are located towards the rear center of the chassis, 
near the fan assemblies. 

Figure 4.  REO 9100 DIMM Location

1.

Make sure you are 

grounded

 and wearing a wrist 

strap.

2.

Line up the 

DIMM

 with the slot:

a.

Position the 

metallic contacts

 downward.

b.

Line up the 

notch

 on the DIMM with the break in 

the socket.

CAUTION:  

DIMMs only fit one direction. Never force a 

DIMM into a socket.

3.

Firmly insert the DIMM into the 

slot

 until the 

retaining clips snap back in place (

Figure 5

).

Figure 5.  DIMM Upgrade

4.

Repeat 

Steps 2–3

 for the 

second DIMM

Replace IDE Flash Drive

The IDE Flash Drive is located in the middle of the 
chassis, next to the fans (

Figure 6

).

Figure 6.  IDE Flash Drive

1.

Gently grasp the installed 

IDE Flash Drive

 by the 

edges and pull up and out of the connector. You may 
need to rock it back and forth to free it.

2.

Disconnect the 

power cable

 from the old Flash Drive.

3.

Take the IDE Flash Drive from the Upgrade Kit and 
position it in the chassis so that the 

power connector

 

is facing the outside of the unit.

4.

Attach the 

power cable

 to the IDE Flash Drive, and 

then press the Flash Drive into the connector (

Figure 7

)

Figure 7.  Connect New IDE Flash Drive

5.

Push firmly on the 

Flash Drive

 until it is securely 

seated.

Install the Hardware Compression Card

1.

Retrieve the 

hardware compression card

 from the 

Upgrade Kit.

2.

Locate the 

PCI-Express slot

 (Slot 6) on the 

motherboard (

Figure 8

).

Figure 8.  REO 9100 Rear Panel with Card Locations

3.

Align the card with the contacts on the 

#6 card slot

 

and gently push down until the card is seated 
(

Figure 9

).

Figure 9.  Line up the HC card and push it into its slot

NOTE: You may need to move the SCSI stand-off cable 
connector to a different location to install the compression 
card.

4.

Attach the

 screw

 to the mounting bracket to secure the 

card.

Install the Upgrade Hardware

DIMM Slots

Upgrade DIMMs 

Retainer Clip

IDE Flash Drive

Motherboard 
Connector 

Power Connector
IDE Flash

RA

9

00

03

Hardware Compression Card

1

2

4

7

3

5

6

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