nvme SSD taking a lot of power.

[SunTsu]

I am bulding microserver and my main focus is for power consumption. I change my hard drive to NVME and my power draw increase from 20W to 24W.
Asus Z270-A
Pentium G4560
Corsair mp510 vs 2.5 inch 1TB WD black
ConnectX-3

In bios APSM is set L0+L1
I add grub APSM config "pcie_aspm=force pcie_aspm.policy=powersupersave"

 

[leesteken]

2.5" 1TB WD Black (SMR) uses 2W for read and write. Corsair MP510 (rev.B) 960GB uses 5.5-7W for read and write. Your power supply is about 80% efficient (maybe less at low power draw?), so the difference will be roughly 25% higher at the wall socket. I don't see how Proxmox can change that.

 

[SunTsu]

I mean IDLE. At windows I can get <20W at proxmox is 24W (mp510), <20W at windows and 22W at proxmox (WD).

 

[leesteken]

I mean IDLE. At windows I can get <20W at proxmox is 24W.

Proxmox is always writing logs and data for the graphs, and Windows does not. Maybe that's the difference? And the SDD uses 3.6W more for writes than the HDD (+25% = 4W).