more power savings possible?

[John Doe]

Hi,
i would like to check for more solutions to have a better power saving (I am talking about idle times)

Setup:
Xeon E5-1620v4 3,5GHz 2011-3
Supermicro X10SRA-F
4x 16GB Samsung DDr4-2133 reg. ECC Ram
650w PSU
8x 3tb WD Red
2x 32gb SSD
2x 128gb SSD
1x 512gb SSD
1x HBA

Usecase: During workingsdays 16:00-24:00, on weekends 24h


So lets start with a consumption breakdown:
8x WD red according to specs 2,7w each in idle comes to 21,6w
HBA ~10w
SSD 5x 3w= 15w

21,6+10+15=46,6w For me this is more or less fixed! I do not think it makes sense to spin down HDDs in view of long lifetime use. So let us not focus on this.

I measured ~82w in idle with Plex and nextcloud Jail running.

This would mean 82w-46,6w=35,4w for CPU, Motherboard, chipset, RAM and PSU
Which is actually quite okay. CPU can enter C2 state and is able to clock down to 1,2GHz.

Do you think there are more opportunities to achieve a better power consumption?

 

[Ericloewe]

Not really, the HBA alone eats up 10W or so...

 

[BigDave]

Do you really need 64GB of memory, how much power usage would you save if you removed half the sticks? That's the only place I can see that you would consider, if it would not hurt performance.

 

[John Doe]

i did a mistake on my power consumption...
CPU+ RAM+ PSU + Motherboard takes 25,3w in idle.

so i dont think there is any way for further improvements. this value is very good. even lower than my old t42p thinkpad.
Thanks for feedback!

 

[BigDave]

Great, so when you put it all together, be sure and post back with the usage numbers.