Sun Microsystems Sun Fire E6900 User manual

Version 2 of the Sun Fire™ System Controller board has increased capacities of
flash memory, dynamic memory, and non-volatile memory.
Note – Do not mix old and new versions of the System Controller (SC) board
in the same system. If a newer version of SC board fails over to an older
version of SC board, the larger quantity of data on the failed SC board can
overload the older version SC board, causing SC software features to terminate
unexpectedly.
Caution – The chassis AC power cord(s) must remain connected to
ensure a proper ground.
Caution – To avoid damaging internal circuits, do not disconnect or
connect any cable while the power is applied to the system.
Caution – The SC board and its modules have surface-mount
components that can be broken by flexing the board.
Sun Fire™ System Controller Board,
Version 2 (Enhanced Memory)
Installation Guide
Sun Fire E6900/E4900 Systems
Sun Fire 6800/4800 Systems

Location of the System Controller Boards
System Controller Board Default Jumper Settings
System Slot Numbers Slot Location
Sun Fire™ E6900 system SSC0 (Master) and SSC1
(Redundant controller) Front—bottom and top
Sun Fire™ E4900 system SSC0 (Master) and SSC1
(Redundant controller) Rear—bottom and top
Sun Fire™ 6800 system SSC0 (Master) and SSC1
(Redundant controller) Front—bottom and top
Sun Fire™ 4800 system SSC0 (Master) and SSC1
(Redundant controller) Rear—bottom and top
Jumper Pins Settings Description
J1301 2-3 In Select FPROM (default)
J1303 1-2 In FPROM write enable (default)
J2303 1-2 In RS-232 (default)
J2304 1-2 In RS-232 (default)

Hot-Plug Installations
The procedures on the following pages include shutting down the system.
However, it is possible to hot-plug the System Controller (SC) board if:
■You are adding a spare SC board to a system that is currently configured
with only one SC board.
■You are replacing one SC board in a dual SC board system.
■You are upgrading both SC boards in a dual SC board system. Note that in
this case, hot-plugging the boards involves:
■First, replacing the spare SC board.
■Next, forcing a failover to make the spare SC board the main SC board.
■Finally, replacing the other SC board.
For details about hot-plugging SC boards, refer to the system administration
manual for your product.
Note – If you are installing multiple hardware upgrades at the same time, it
might be faster and easier to shut down the system rather than attempt to hot-
plug multiple boards and assemblies.
Installing a System Controller Board
1. Power off the system.
For complete powering on and off procedures, refer to the powering on and
off guide for your product, OR refer to the system administration manual
for your product.
Note – If you prefer to hot-plug the SC board, refer to the system
administration manual for your product for hot-plug procedures.
2. Attach a wrist strap or foot strap, and connect the strap to the system.
3. Place a grounded ESD mat close to the system.
4. Remove the filler board and save it.
5. If there is a protective cover on the connector of the SC board, remove the
cover.

6. Open the board ejector levers.
7. Align the board and slide it into the card cage slot.
Caution – DO NOT FORCE any board into a slot; this can cause
damage to the board and system. The board should insert and seat
smoothly. If it binds, remove the board and inspect the card cage slot
for any obvious obstructions.
Ejector
levers
Captive fastener

8. Simultaneously push inward on both board ejector levers to seat the
board.
9. Tighten the captive screws by using a Phillips No. 2 screwdriver.
10. Connect the proper cable to the board front panel.
11. Power on the system.
Removing a System Controller Board
1. Power off the system.
For complete powering on and off procedures, refer to the powering on and
off guide for your product, OR refer to the system administration manual
for your product.
Note – If you prefer to hot-plug the SC board, refer to the system
administration manual for your product for hot-plug procedures.
2. Attach a wrist strap or foot strap, and connect the strap to the system.
3. Place a grounded ESD mat close to the system.
4. Disconnect the serial or network cable from the board front panel.
5. Loosen the two captive screws on the SC board front panel using a
Phillips No. 2 screwdriver.
These screws are spring-loaded.
6. Pull outwards on the board ejector levers to unseat the board.
7. Remove the board.
8. Install a filler board or a new SC board.
9. Power on the system.

Sun Microsystems, Inc.
www.sun.com
Part No. 817-4121-10, Rev. A
February 2004
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Sun Fire System Controller Board, Version 2 (Enhanced Memory) Installation Guide, part number
817-4121-10
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