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tweak2
Asked: 2013-04-20 09:55:33 +0800 CST

Centos 6.4 install only showing 160G of 192G installed ram, dmesg shows all 16x16G sticks

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Any ideas why? Same sever with ubuntu 12.04 shows 192G properly.

With centos 6.4 (64 bit):

one

with Ubuntu 12.04 (64 bit):

two

I put the mem=193447M in the kernel section of /boot/grub/grub.conf to no avail.

dmidecode shows, with regards to memory, two 96G banks and 16x16G sticks:

dmesg shows all 16 sticks but before that reports: (System RAM: 164864MB)

linux

1 Answers

  1. Best Answer

    Physically swapped all the DIMMs around and rebooted, came up with 192G.

    Haven't seen that happen before, but systems with many DIMMs are much more susceptible to this.

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