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Lowering power consumption on Opteron
(lemmy.world)
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this post was submitted on 22 Aug 2025
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If you've optimized your BIOS settings (balanced mode or power saving wherever possible), the only other option is removing extraneous hardware. All hardware power use (disks, HBAs, other adapters and controllers) adds up. I managed to get idle power consumption of an HP DL-380 G9 down to about 60w (started at 210w) by removing the disks, RAID controller and battery, fiber channel adapters, and extra Ethernet adapter. Each SAS disk I removed saved me 10w. I used one M.2 drive in a PCI adapter instead.
Like you mentioned, these aren't designed to save power. That Opteron (and the chip set) hales from a time before "performance per watt" was a thing.