My Home Lab Server with 20 Cores / 40 Threads and 128 GB Memory

Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by rhn_mk1 on Tuesday August 13, 2019 @01:19PM (#20687966)

Did you do anything particular to get 15W? I have recently measured my AMD AM1 system, which sits at 40W with 8GiB RAM, 2 HDDs and a couple mostly idle VMs on it.

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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by rhinoceraptor on Tuesday August 13, 2019 @01:55PM (#20688432)

I'd check the BIOS to see if there are any power saving options, and/or unclocking/undervolting the CPU.

2.5" HDDs and SSDs use about the same amount of power, but 3.5" HDDs use 2-3x more. So you could potentially save 12 watts if you're using 3.5" drives.

Make sure your PSU is a high efficiency one, and isn't too low, or or too high wattage. From what I've read the maximum efficiency is in the 40-80% range.

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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by scns on Tuesday August 13, 2019 @02:14PM (#20688672)

Maximum efficiency is at 50%

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Re:My Home Lab Server with 20 Cores / 40 Threads and 128 GB ... by eropple on Tuesday August 13, 2019 @02:06PM (#20688586)

I do undervolt it and I aggressively spin down the drives. (My concern is mostly storage and redundancy, not performance.)

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