Chapter 7 FRU/CRU Replacement Procedures 7-7
■Memory scrubbing: Error correction is performed on data being read from
memory. The correction is then passed to the requestor and at the same time
the error is “scrubbed” ( corrected) in main memory. Memory scrubbing
prevents the accumulation of single-bit errors in main memory that would then
become unrecoverable multiple-bit errors.
■X4 single device data correction (x4 SDDC): When x4 memory is installed, the
ECC function can detect and correct a four-bit error caused by a single failed
memory chip and the system continues to function, though system
performance will be affected. When x8 memory is installed, the ECC function
will detect an eight-bit error caused by a single failed memory chip but will not
be able to correct the error. In this situation a fatal error will be issued.
Caution – Use of unqualified DIMM modules may damage the server and may void
the warranty.
7.6.3 Power Supply Unit
Caution – Before touching or replacing any component inside the server, disconnect
all external cables and follow the instructions in “Safety: Before You Remove the
Cover” on page7-2 and “Removing and Replacing the Cover” on page 7-2. Always
place the server on a grounded ESD pad and wear a properly grounded antistatic
wrist strap.
Warning – Power supply may be hot to the touch.

7.6.3.1 Sun StorEdge 5310 NAS Power Supply

To replace a power supply:
1. Squeeze the module handle to depress the latch (Figure 7-4, panel 1).
2. Rotate the handle down while pulling the module toward you
(Figure 7-4, panel 2).
3. As you pull the module out, support the module with your free hand .
4. Insert a new power supply module in the bay.
5. Grip the module handle, rotate it down, and pu sh the module into the bay.