CentOS only detecting 50% of ram

Posted by Devator on Server Fault See other posts from Server Fault or by Devator
Published on 2011-11-24T17:42:26Z Indexed on 2011/11/24 17:58 UTC
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linux

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centos

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memory

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ram

I have 16GB ram in my machine. Before, free -m outputted the normal 16 GB ram, however now (after a reboot) it only detects 8 GB ram. Is one ram module damaged?

grep -i memory /var/log/dmesg outputs Memory: 15621184k/16017200k available (2535k kernel code, 387120k reserved, 1748k data, 196k init). (Which looks like 16 GB to me).

Free -m outputs: total used free shared buffers cached Mem: 7484 7415 68 0 6104 524 -/+ buffers/cache: 786 6697 Swap: 2055 0 2054

Anything I might be missing?

Thanks in advance.

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