Sun Microsystems 280R manual Dimm Failure

supply LEDs will indicate any problem with the AC input or DC output. See “About Power Supplies” on page 95 for more information about the LEDs. To replace a power supply, contact a qualified service provider.

DIMM Failure

SunVTS and POST diagnostics can report memory errors encountered during program execution. Memory error messages typically indicate the DIMM location number (“J” or “U” number) of the failing module. To replace a DIMM, contact a qualified service provider.

Use the following diagram to identify the location of a failing memory module from its J (or U) number:

DIMM mapping—main logic board

System Side

Memory group 0

J0407

J0406

J0305

J0304

J0203

J0202

J0101

J0100

System Front

196 Sun Fire 280R Server Owner’s Guide • January 2001