User manual ACER AAR5250

[. . . ] Acer Altos R5250 Series User's Guide Copyright © 2007 Acer Incorporated All Rights Reserved. Acer Altos R5250 Series User's Guide Changes may be made periodically to the information in this publication without obligation to notify any person of such revision or changes. Such changes will be incorporated in new editions of this manual or supplementary documents and publications. This company makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims the implied warranties of merchantability or fitness for a particular purpose. [. . . ] Perform the instructions described in "To remove the air duct" section on page 33. Press the holding clips on both sides of the DIMM slot outward to release the DIMM (A). Gently pull the DIMM upward to remove it from the DIMM slot (B). 3 4 B A 5 If you intend to install a new DIMM, refer to previous section for related procedure, otherwise reinstall the air duct, then observe the post-installation instructions described on page 28. To reconfigure the system memory: The system automatically detects the amount of memory installed. Run the BIOS setup to view the new value for total system memory and make a note of it. 51 Installing an expansion card To install an expansion card: 1 2 Perform the pre-installation instructions described on page 28. (2) Gently pull the riser assembly to disengage from the chassis, then lift the riser assembly from the chassis (B). B A 3 4 Remove the new expansion card from its packaging, handling it by the edges. Remove the screw that secures the slot cover to the metal bracket, then store it for reassembly later. Caution: Do not discard the slot cover. If the expansion card is removed in the future, the slot cover must be reinstalled to maintain proper system cooling. 52 5 Install the expansion card. 3 System upgrade (1) Align and insert the PCI card until it seats in the slot bracket (A). (2) Secure the card with the screw removed earlier (B). A B 6 Install the PCI riser assembly. (1) Position the riser assembly over the PCI riser slot on the mainboard, then push the riser assembly down until the assembly is securely seated (C). (2) Tighten the thumbscrew to secure the assembly to the chassis (D). C D 7 8 Connect the necessary cables to the PCI card as required. When you turn on the system, the BIOS setup automatically detects and assigns resources to the new device (applicable only to Plug-and-Play expansion card). 53 Installing the SAS daughter board This section includes instructions on how to install a SAS daughter board and a SAS RAID daughter board. To install the SAS daughter board: 1 2 3 4 Perform the pre-installation instructions described on page 28. Remove the SAS daughter board from its protective packaging, handling it by the edges. Connect one end of the SGPIO (Serial General Purpose Input/ Output) cable to the backplane SGPIO connector and the other end to the SGPIO connector on the SAS daughter board (A). Align then insert the gold-lined edge of the board into the SAS daughter board slot (B). Secure the SAS daughter board to the mainboard with the screw provided (C). Connect the necessary SAS data cables as required (D). 5 6 7 8 Observe the post-installation instructions described on page 28. 54 3 System upgrade To install the SAS RAID daughter board: Altos R5250 system supports SAS RAID through installation of a SAS RAID daughter board. With the addition of a RAID activation key to the SAS RAID daughter board is enabled. 1 2 3 4 Perform the pre-installation instructions described on page 28. Perform the instructions described in "To remove the air duct" section on page 33. Remove the SAS daughter board from its protective packaging, handling it by the edges. Connect one end of the SGPIO (Serial General Purpose Input/ Output) cable to the backplane SGPIO connector and the other end to the SGPIO connector on the SAS RAID daughter board (A). Align then insert the gold-lined edge of the board into the SAS daughter board slot (B). [. . . ] The distance from the center of two holes with closer spacing to the center of the next pair is equivalent to 1U. Note: The unit of measurement used in this guide is "U" (1U = 1. 75 inches or 44. 45 mm). The total sum of the heights of all components in the rack measured in "U" cannot exceed the height of the rack. For more information, refer to the documentation that came with the system rack. When installing components, you must start your measurement from the center of the two holes with closer spacing. Otherwise, the screw holes on the component may not match those on the rack. 113 Installing the system into the rack Caution! [. . . ]