this post was submitted on 30 Oct 2023
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Hi, I'm planning an doing an upgrade to my hardware and I'm eying a used Ryzen 1700 or Ryzen 1800 (they are dirt cheap now and have an excellent upgrade path once people sell of their Ryzen 5000 CPUs).

I'm however a bit concerned about the idle power consumption of such a System. My plan in terms of Software is to migrate my existing Proxmox System which is running 4 VMs and 6 LXC containers at the moment. Most of which are at < 3% CPU Ut. 99% of the day. Has anyone got any numbers or rough estimates how big the idle power draw of such a System would be? For a graphics card (just to have some kind of display output) I plan to use a GTX 220.

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[–] [email protected] 4 points 1 year ago* (last edited 1 year ago)

I run a 1600X as a Proxmox host, I have used TLP to set all of the configurable that are exposed, and it idles at 70W. There are a few other things consuming power though - a spinning HDD, a discrete GPU (quadro K2200) doing zero work, and four DIMMs.

This is helpful to heat my apartment in the winter, but regrettable overall.

[–] [email protected] 3 points 1 year ago (3 children)

I can't say anything about Proxmox or any power management tool as a fact, but I can tell you that my 1600X is running hella hot at idle on Linux. I'm dual booting and on Win it's idle at 30° while on Linux 60°. Hope this can give some insight, or if anyone knows how to fix this pls tell

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

You probably need to enable some power saving features that Windows does by default but Linux may not. Run something like https://wiki.archlinux.org/title/TLP just to see if it helps, and then do some tuning because it might be too aggressive.

[–] [email protected] 2 points 1 year ago

turn it off 😔

[–] [email protected] 2 points 1 year ago (1 children)

Ok thanks, it then seems like some Software thing. Are your clock speeds also higher under linux when idle?

[–] [email protected] 1 points 1 year ago

The running frequency seems to be the same on both, around 3.5 GHz on idle (weird I know). I'll do some more testing and come back to you with the results

[–] [email protected] 3 points 1 year ago

I have a server with a Ryzen 3 3200G with a B450 mainboard. The system has 16GB RAM, a boot SSD and a 16TB HDD. With proxmox and a few VM's installed with low CPU usage I've read 25-30W from a power meter.

Keep in mind that the system relies on the integrated GPU. If it had an dedicated GPU the power consumption would probably increase around 10-30W.

[–] [email protected] 2 points 1 year ago

Would like to know this too. I have a 1600x sitting in my spare parts box since my desktop upgrade about a year ago. Been wondering if it's worth it to set up some kind of game server with it.

[–] [email protected] 2 points 1 year ago (1 children)

I tried proxmox with a Ryzen 1400, a GTX1060 Ti, 3 HDD, 1 NVMe. On proxmox I had a couple of VM and 1 CT. I had 70W on idle which is too much for me :)

[–] [email protected] 1 points 1 year ago

ok that is wild! thanks!

[–] [email protected] 1 points 1 year ago

Hmm the prices on eBay really don't seem that good to me in comparison to newer generations. I guess the power consumption will eat up any savings pretty quickly. Though this might differ for whole sets.