NMI errors in messages files

I have a HP Proliant DL740 G1 server running Red Hat Enterprise Linux AS release 3 (Taroon Update 4)

The following kernel is running on the DL740 G1 server.

[root]# uname -a
Linux nodeP 2.4.21-27.ELsmp #1 SMP Wed Dec 1 21:59:02 EST 2004 i686 i686 i386 GNU/Linux.


The server apparently crashed.

After rebooting it I checked the messages file and noticed the following errors:-

Apr 22 06:18:03 praxidike kernel: Uhhuh. NMI received. Dazed and confused, but trying to continue
Apr 22 06:18:03 praxidike kernel: You probably have a hardware problem with your RAM chips
Apr 22 06:54:23 praxidike ntpd[1033]: time reset 2.496282 s
Apr 22 06:54:23 praxidike ntpd[1033]: synchronisation lost
Apr 22 07:28:52 praxidike ntpd[1033]: time reset 1.283675 s
Apr 22 07:28:52 praxidike ntpd[1033]: synchronisation lost
Apr 22 07:50:19 praxidike ntpd[1033]: time reset -0.569282 s

Then the same error was later reported in the messages file:-

Apr 23 10:04:13 praxidike kernel: Uhhuh. NMI received. Dazed and confused, but trying to continue
Apr 23 10:04:13 praxidike kernel: You probably have a hardware problem with your RAM chips
Apr 23 10:17:53 praxidike ntpd[1016]: time reset 0.892751 s
Apr 23 10:17:53 praxidike ntpd[1016]: synchronisation lost
Apr 23 10:38:32 praxidike ntpd[1016]: time reset -0.595013 s
Apr 23 10:38:32 praxidike ntpd[1016]: synchronisation lost


Any ideas what the NMI errors are and how to fix them?

Also how can I fix the ntpd synchronisation lost errors?


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