February 5, 20197 yr Hello everybody, yesterday i upgraded my PC to an all AMD build and moved UnRAID on the new machine. Everything worked more or less out of the box (Vega Passthrough took me a while), but now i can't figure out why the power consumption is so high. First off, here my current Hardware: Ryzen 5 2600 ASRock B450 Pro4 Sapphire Pulse Vega 56 16 GB DDR4 3200/CL16 2xWD 2TB, 1x3TB (Array) 1xCrucial MX300 500GB (Cache) So, with a bare-metal windows installation, the idle power consumption is at around 60 Watt. Having a windows gaming vm running (Vega56 passthrough) in unRAID, idle power consumption is at around 77 Watt (same disks etc. installed) But when NO VM is running, unRAID gets hungry and takes about 140 Watt. This can't be right, can it? So i guess it must be the GPU that is giving me the headaches. Or am i just missing something? Additional note: I'm coming from an Intel Xeon E3 system with a H97 motherborad. I just moved the unRAID Flashdrive to the new computer. Can this be my problem?
February 6, 20197 yr Author Tested it now with a Demo Version of Unraid. Unraid sits at ~138 Watt usage. Are there no power saving options for AMD Vega?
February 6, 20197 yr maybe your GPU working at full speed until VM start's and then goes to low power mode ? You could try to run unraid without Vega and see what power consumption will be. I'm use my unraid on several configurations (G1620, i3 540, i5 750, i5-2500k, i3-4300, TR1920x, Ryzen 1300X, Ryzen 3 2200G) and everything working fine
February 6, 20197 yr Author Hey Raptor, yes, the vega seems to run at a relatively high speed and clocks down once the AMD (or even Win) Driver is loaded in the VM. Its not full speed, then the power consumption would easily go in to 250+ Watt area. Did not have this problem with my old RX 570 and the power consumption is as expected (~50 Watt) when no card is plugged in. So how can i fix this?
September 27, 20196 yr Is there any news on this topic? I am still experiencing this behavior after upgrading to a Vega 10 card from a rx580. It's exactly as described by OP. Since anybody was able to improve the situation, please let us know!
January 22, 20206 yr Hello, somebody have any solution for this problem my unraid consume 200w in idle mode and 130w with a windows 10 VM. Thank you very much.
September 16, 20205 yr anyone has a solution to this? Is if possible to change power state for amd gpu like for nvidia gpu?
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