[Sunhelp] Softerror

[triyono]

Hi All,
I've got messages on my E450(hostname:JCISUN3) like these:

Sep 18 06:01:22 JCISUN3 unix:   CONSIDER REPLACING THE MEMORY MODULE.
        Sep 18 06:01:22 JCISUN3 unix: Softerror: Persistent ECC Memory
Error
        Sep 18 06:01:22 JCISUN3 unix:  Corrected MemMod 1902
        Sep 18 06:01:22 JCISUN3 unix:   ECC Data Bit 61 was corrected
        Sep 18 06:01:31 JCISUN3 unix: Multiple Softerrors:
        Sep 18 06:01:31 JCISUN3 unix: 1 Intermittent and 255 Corrected
Softerrors accumulated
        Sep 18 06:01:31 JCISUN3 unix: from Memory Module 1902
        Sep 18 06:01:31 JCISUN3 unix:   CONSIDER REPLACING THE MEMORY
MODULE.
        Sep 18 06:01:31 JCISUN3 unix: Softerror: Persistent ECC Memory
Error
        Sep 18 06:01:31 JCISUN3 unix:  Corrected MemMod 1902
        Sep 18 06:01:31 JCISUN3 unix:   ECC Data Bit 61 was corrected
        Sep 18 06:01:41 JCISUN3 unix: Multiple Softerrors:
        Sep 18 06:01:41 JCISUN3 unix: 12 Intermittent and 244 Corrected
Softerrors accumulated
        Sep 18 06:01:41 JCISUN3 unix: from Memory Module 1902
        Sep 18 06:01:41 JCISUN3 unix:   CONSIDER REPLACING THE MEMORY
MODULE.
        Sep 18 06:01:41 JCISUN3 unix: Softerror: Persistent ECC Memory
Error
        Sep 18 06:01:41 JCISUN3 unix:  Corrected MemMod 1902
        Sep 18 06:01:41 JCISUN3 unix:   ECC Data Bit 61 was corrected
        JCISUN3:p01adm 9%

What it does mean. And what I have to do to solve this problem?
Thank's for your help.

rgrds,
-triyono-