[CentOS] cpu temp reading - got bus error from tar extract

Is there a way to read the cpu temp from centos?

I have odd things happening on my computer.
I have had a couple kernel crashes..
today I was trying to untar a file and got a "Bus error" printed on screen.
after a reboot the file untared just fine.

very odd behavior.

Without rebooting again I was wanting to check the health...

I have an Intel motherboard, 2.4 P4, 2 GIG, 2 brand new seagate 300G drives.

Thanks,

Jerry
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