Sun Fire X4640 Server
 

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In this Document

Goal

Solution

Applies to:

Goal

How to Replace a Sun Fire X4640 Memory DIMM.

Solution

DISPATCH INSTRUCTIONS

WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED:
No special skills required, Customer Replaceable Unit (CRU) procedure

TIME ESTIMATE: 30 minutes

TASK COMPLEXITY: 0

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:

PROBLEM OVERVIEW: A Sun Fire X4640 Memory DIMM needs replacement

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY? :

Complete and clean OS shutdown and power off is required.

WHAT ACTION DOES ENGINEER NEED TO TAKE:
Use of Solaris FM commands such as :
# fmdump -v
# fmadm clear <UUID> if Solaris is the installed OS and if fmdump -v reports a faulty DIMM for the
date of fault reported by the Customer/Sun Support engineer
Check Maintenance LED on the front panel of the server
To use CPU module's built-in DIMM diagnostics, refer to "Locating Faulty CPUs and DIMMs" on the Service Guide.
Ensure that if system is mounted in a rack that the anti tip over bar at the bottom of the rack is fully extended before servicing commences.

A. DIMM Removal
A.1.Power off server
A.2 If server is rack-mounted, slide it far enough from rack to remove the main cover
If impossible to do previous step, consider unracking server completely
A.3 .Remove top cover
A.4 .Remove CPU module w/ faulty DIMM from its bay
A.4.a.Rotate both plastic levers on top corners of module to upright, 90-degree position
A.4.b. Lift module straight up to remove from metal edge-guides in bay
A.4..c Lay CPU module flat on back surface, on anti-static mat
A.5 Locate DIMM slot on CPU module to which you will replace a DIMM
A.6 To remove DIMM, follow steps below
A.6.a.Rotate both DIMM slot ejectors outward as far as they will go
DIMM is partially ejected from the socket
A.6.b Carefully lift DIMM straight up to remove from socket

B. DIMM Installation
B.1 Ensure DIMM slot ejectors at each end of socket are fully open to accept new DIMM
B.2 Align notch in bottom edge of DIMM w/ key in DIMM socket
B.3 Make sure that DIMM slots are used according to correct rules for this CPU module
B.4 Reinstall CPU module
B.4.a Ensure that both plastic levers on top corners of module are in fully open, vertical position. Please note that pins connecting CPU module to motherboard are very fragile. When you install module, be very careful to align module with edge-guides in bay and to rotate both plastic levers at top corners of module closed simultaneously to avoid jamming connector pins
B.4.b Align module edges with metal edge-guides in CPU module bay
B.4.c Lower module until it touches motherboard connector and opened plastic levers are in contact with edges of bay
B.4.d Rotate both plastic levers downward until flat against top corners of module
B.5 Replace main cover
OBTAIN CUSTOMER ACCEPTANCE
If time & customer allow, run extended POST after DIMM replacement.

WHAT ACTION DOES CUSTOMER NEED TO TAKE TO RETURN SYSTEM TO AN OPERATIONAL STATE:
Reboot server.
Once OS is booted, make sure all installed memory is available.
Check messages.
# prtdiag -v |more => to state all memory installed and used in system

PARTS NOTE:
REFERENCE INFORMATION:
X4640 Server Service Manual http://download.oracle.com/docs/cd/E19273-01/

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