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Poweredge 2970 runs sluggish with Ubuntu installed on SSD

Last Modified: 2016-01-12
16GB Ram
Quad Core Opteron
PERC5 SAS (no raid)
Ubuntu 15.02 Desktop or Server (tried both)

I have Ubuntu installed without issue, but it runs horribly slow. So even when I just move the mouse (pointer moves fast) and do a quick hover over the sidebar for firefox etc, it moves horribly slow. Like it canot catch up to itself. It will take 5 seconds for the hovered names to finish coming up.

Does not do this when the live CD loads, so I think it's a hard drive/backplane/controller issue. Perhaps drivers or something?

Things start slow etc... just overall sluggishness.

Why is this happening and how do I fix it?
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