A-Class System Service
Replacing an A-Class Server Exchange Base Unit (EBU)
Chapter 3
102
Step 5. Remove the top of the server by unscrewing the knurled captive screws on each side of
the rear of the server. Slide the top back, lift it off, and set it aside.
Removable Components
The components listed below must be removed from the defective server prior to
exchanging it for an operational unit. Click on each name to link to the remove/replace
instructions for that item.
• A-Class Server RAM Removal and Replacement
• A-Class Server Cache Memory Removal and Replacement
• A-Class Server Disk Drive Removal and Replacement
NOTE Do not remove disk drives from the bracket.
• A-Class Server I/O Card Removal and Replacement
NOTE As you remove the memory and I/O cards from the original system, note the slots from
which they came. They must be installed in the same slots in the EBU to ensure that the
system operates properly.
If you don’t know the order in which the I/O cards were removed, refer to a recent ioscan
(or other mapping utility) output. The information shown below can be used to match a
path with an I/O card slot:
Slot 1 is the TOP slot and slot 2 is the BOTTOM slot, when looking at the server from
the rear. The “x” is an operator-input variable.
If you don’t know the order of memory card removal, refer to the Memory Loading Rules
on the label located under the server lid, attached to the top.
Move the Components to the EBU
The following paragraphs discuss how to transfer the components from the server to the
EBU.
Unpack the EBU
When the new EBU is received, follow the directions in the A-Class Server Unpacking
Instructions section.
HSC Cards PCI Cards
Path Slot Path Slot
8/4.x Slot 1 8/0/1.x Slot 1
8/8.x Slot 2 8/0/2.x Slot 2
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