Apple xserve g5 or xserve g5 january 2005 User Manual

							
 

Xserve G5 Take Apart - 
 
9
 
 DIMMs
 
Important:
 
 Always install DIMMs in pairs of equal size. Memory from older Macintosh 
computers is not compatible with Xserve G5. Do not use older memory, even if it  fits into 
the DIMM slots.
 
Caution:
 
 Do not install 2 GB DIMMs in Xserve G5 main logic boards that did not 
previously have 2 GB DIMMs installed. Only Xserve G5 main logic boards labelled “DDR 
2GB”  accept 2 GB DIMMs. Refer to the Logic Board procedure for more information.
 
Tools
 
No tools are required for this procedure.
 
Preliminary Steps
 
Before you begin, open the server and place the bottom housing on a sturdy,  flat surface.
 
Part Location 
						

							
 

10 - 
 
Xserve G5 Take Apart DIMMs
 
Procedure
 
1. Push down the ejectors on the DIMM slot. 
2. Holding the DIMM by both top corners, lift it straight up out of the server.
 
Warning: 
 
When removing or installing the DIMM, handle it only by the edges. Do not 
touch its connectors. Lift the DIMM straight up from the connector to remove it, and insert 
it straight down into the connector to install it. Do not rock the DIMM from side to side.
 
Replacement Note: 
 
The DIMM is designed to  fit into the slot only one way. Be sure to 
align the notch in the DIMM with the small rib inside the slot. 
						

							
 

Xserve G5 Take Apart - 
 
11
 
 PCI or PCI-X Card
 
PCI or PCI-X Card
 
In both Xserve G5/Xserve G5 (January 2005) and Xserve G5 (Cluster Node), there are 
two slots available for PCI or PCI-X expansion cards. The slots are on a riser card located 
at the back corner of the logic board. 
The server accommodates PCI or PCI-X cards that meet the following requirements:
• 32 or 64-bit data width
• 33, 66, 100, or 133 MHz frequency (133 MHz is available only when a sin\
gle card is installed; if two cards are installed, both cards operate at the speed o\
f the slower 
card.)
• 3.3 volt signaling (PCI-X cards must have a 3.3 volt connector or a uni\
versal connector  to fit into the expansion slots; cards with a 5 volt connector will not \
work in this server.)
• 7 to 12 inches long
 
Important:
 
 Be sure to check the documentation that came with any PCI or PCI-X card to 
verify that it is compatible with Xserve G5. Some cards may need to be installed in a 
speci fic slot in the riser card.
 
Note:
 
 Maximum power consumption for both expansion slots combined should not exceed 
30 watts. Check the documentation with each card to be sure the cards don’t exceed this 
limit.
 
Tools
 
No tools are required for this procedure. You may, however,  find a Phillips screwdriver 
useful in releasing the thumbscrew in step 1 below.
 
Preliminary Steps
 
Before you begin, open the server and place the bottom housing on a sturdy,  flat surface.  
						

							
 

12 - 
 
Xserve G5 Take Apart PCI or PCI-X Card
 
Part Location 
						

							
 

Xserve G5 Take Apart - 
 
13
 
 PCI or PCI-X Card
 
Procedure
 
Note:
 
 If you are removing a RAID card, refer to the following Take Apart topic “RAID Card.”
1. Release the thumbscrew that secures the card(s) to the back of the server and swing  the metal cover open.
 
Note:
 
 The thumbscrew is captive; you cannot remove it.
2. If any 12-inch card is installed, slide the card guide toward the front of the server to  release the card. 
3. Carefully pull the PCI card back from the connector on the PCI riser. Then tilt the card  up so that its port clears the enclosure, and remove the card from the server.
 
Warning: 
 
When removing or installing a PCI card, handle it only by the edges. Do \
not touch its connectors or any of the components on the card. Lift the \
card straight 
out from the connector to remove it, and insert it straight into the con\
nector to install 
it. Do not rock the card from side to side and don’t force the card i\
nto the slot. Once 
the replacement card is installed, pull on it gently to check that it is\
 properly 
connected.  
						

							
 

14 - 
 
Xserve G5 Take Apart RAID Card and Standoff
 
RAID Card and Standoff
 
Tools
 
No tools are required for this procedure. You may, however, find a Phillips screwdriver 
useful in releasing the thumbscrew in step 1 below.
 
Preliminary Steps
 
Before you begin, open the server and place the bottom housing on a sturdy,  flat surface. 
 
Part Location 
						

							
 

Xserve G5 Take Apart - 
 
15
 
 RAID Card and Standoff
 
Procedure
 
1. Release the thumbscrew that secures the PCI/PCI-X card(s) to the back of the server and swing the metal cover open.
 
Note:
 
 The thumbscrew is captive; you cannot remove it.
2. Carefully pull the RAID card back from the connector on the PCI riser. Then tilt the  card so that its cables clear the enclosure, and lift the card a short distance out of the 
server.
 
Warning: 
 
When removing or installing the RAID card, handle it only by the edges. \
Do 
not touch its connectors or any of the components on the card. Lift the \
card straight 
out from the connector to remove it, and insert it straight into the con\
nector to install 
it. Do not rock the card from side to side and don’t force the card i\
nto the slot. Once 
the replacement card is installed, pull on it gently to check that it is\
 properly 
connected. 
 
Important:
 
 Be careful not to lift the card too high or with too much force, becaus\
e it is 
attached to the server by the card cables. You’ll detach the cables i\
n the next step. 
						

							
 

16 - 
 
Xserve G5 Take Apart RAID Card and Standoff
3. Turn the card over and disconnect the three RAID card cables.
 
Replacement Note:
 
 Before installing the RAID card in the PCI riser, do the following: 
1) Plug the backup battery cable into the connector on the card. 2) Connect the three 
RAID card cables to card connectors as illustrated below:
• To port 0 (nearest the fence), connect cable A (longest, may be blue-\
banded) 
• To port 1 (second from fence), connect cable B (middle-length, may be\
 red-banded)
• To port 2 (third from fence), connect  cable C (shortest, may be whit\
e-banded).
 
Important:
 
 Do not connect any cable to Port 3 on the RAID card. 
						

							
 

Xserve G5 Take Apart - 
 
17
 
 RAID Card and Standoff
 
Replacing Standoff
 
Follow these steps to replace a missing RAID card standoff..
1. Mark the postion of the standoff, which will be installed in the hole in the corner of the card where shown above. Using your  fingernail ,mark the position of the standoff on 
the black sheet of mylar insulation beneath the RAID card.
2. Remove the card from the PCI slot and using the square of double-stick tape included  with the standoff, tape the black mylar insulation sheet to the bottom of the server. 
Adhere the double-stick tape to the metal chasis  floor directly below the spot you 
marked.
3. Remove the paper covering from the underside of the standoff’s base. Re-install the  card in the bottom PCI slot with the standoff in place, and press the standoff against 
the mylar sheet. 
						

							
 

18 - 
 
Xserve G5 Take Apart PCI Riser
 
PCI Riser
 
Tools
 
No tools are required for this procedure. You may, however, find a Phillips screwdriver 
useful in releasing the thumbscrew in step 1 below.
 
Preliminary Steps
 
Before you begin, open the server and place the bottom housing on a sturdy,  flat surface. 
 
Part Location