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Planning build: Power efficient headless steam machine, and later upgrade for AI tasks (lemm.ee)

submitted 10 months ago by Mantis8497@lemm.ee to c/selfhosted@lemmy.world

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Background

I'm planning on building a secondary server that can process more intense tasks than my current basic home server. Tasks such as light gaming (think "remote Steam Deck"), and later allowed to be upgraded with a Nvidia graphics card to handle AI tasks, such as LLM and SD.

The problem

While I have no problem picking parts to build this as a "desktop computer", I'm completely lost when trying to make it power efficient for idle load (if it's even possible with a power-hungry Nvidia card). I'd appreciate some guidance even if it's not a full parts list suggestion!

Watching Wolfgang's videos has unfortunately not translated knowledge into practice for me yet. At least I know TDP isn't an absolute determining factor anymore.

Planning the build

Due to a limited budget, the idea is split the build in 2 phases.

Phase 1 (gaming):

Budget: $1000 (ideally below ~$800):
Use for local headless gaming (with bazzite?)
At least as powerful as a Steam Deck
Parts:
- APU:
  - Perhaps: "AMD Ryzen 7 7800X3D ($400)"
  - or "AMD Ryzen 5 7600X ($300)"?
- Motherboard:
  - No specific requirement, will mainly just use the PCIe x16 slot for a single GPU when upgrading in "phase 2".
  - Okay with gigabit ethernet and basic I/O.
- Power supply:
  - Power efficient power supply that can handle a class 4080/4090 card.
- Cooling:
  - Air-cooled preferred
- Storage:
  - Samsung 990 PRO NVMe M.2 SSD 1TB (~$100)
- RAM:
  - Corsair Vengeance LPX Black DDR4 3200MHz 2x16GB (~$70)
- Case:
  - As long as it fits a large graphics card

Phase 2 (AI: LLM/SD):

Budget: ~$2000
After 1-2 years, upgrade with Nvidia graphics card.
- Ideally something with 24GB VRAM, like the 4090.
- Prefer Nvidia due to compatibility with SD.
Open for suggestion, since wanting a low power draw with a 4090 might sound contradictory.

In case I missed any crucial information, let me know!

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[–] randombullet@programming.dev 4 points 10 months ago* (last edited 10 months ago)

Just so you know

R5 5700G

128GB ram

2 x 20TB disks

2 x 4tb NVMe

Idles at about 60w.

You should look into the RTX 6000 or higher to utilize vGPUs.

Here's the full list.

Not fully supported but it's possible.

And also get into proxmox. You can pass through part of your GPU into a "desktop" environment and also have another VM(s) running in the background. That way you can use your computer as normal with a type 1 hypervisor in the background.

Also get a mobo with 2 NICs. The fewer pcie cards you have the lower power draw.

My NVMe idle at 7w and my HDDs idle at about 15w I think. 45w is just for storage.