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Lenovo thinkcenter 720q + metis pcie not working

  • February 11, 2026
  • 10 replies
  • 77 views

can’t get the pcie card to show up with lspci on this lenovo thinkcenter 720q, fan powers up but doesnt show up

Best answer by Keith Sachs

ahhh i got it to work, i had to make some changes in grub shell to 1) enable above 4G decode, and 2) Force the Peg root port to be enabled, i guess the metis takes longer to train

10 replies

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Axelera Team
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  • Axelera Team
  • February 11, 2026

Hi there ​@Keith Sachs ! I’m not sure I’ve seen much of the Thinkcenters… do you know if it can supply enough power to a Metis PCIe? (Around 75w, is it?).

I feel like someone previously mentioned needing a riser card for a Lenovo too, but I can’t find it now...


  • Author
  • Cadet
  • February 11, 2026

Should be able to i would think, i shoved a 135W psu at it and the system its self only draws maybe 30w under load
and yeah it does use a riser card and i fear that may infact be the problem but i was hoping to get some other opinions haha


  • Author
  • Cadet
  • February 11, 2026

oh another note i was browsing last night and i see that ubuntu 22 is what is recommended but i installed 24 before seeing that, not sure if that could be the cause of my headaches but i would imagine it would show up at least with lspci in 24? 


  • Author
  • Cadet
  • February 11, 2026

one more update for you, i realized i had a gigabit pcie nic laying around, put that in the pcie riser to test and it does show up so the riser its self should work. 


  • Author
  • Cadet
  • Answer
  • February 12, 2026

ahhh i got it to work, i had to make some changes in grub shell to 1) enable above 4G decode, and 2) Force the Peg root port to be enabled, i guess the metis takes longer to train


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Axelera Team
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  • Axelera Team
  • February 16, 2026

Ah, great work ​@Keith Sachs !

At least regarding Ubuntu, 24.04 is fully supported now. It was previously only working in Docker, but you can use it natively now as you probably found 👍

What’s the project you’re working on, by the way?


  • Author
  • Cadet
  • February 16, 2026

@Spanner I basically want to make a Yarbo, little yard robot for mowing my lawn / snowblowing / etc


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Axelera Team
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  • Axelera Team
  • February 16, 2026

Oh awesome! I was just fiddling with some home automation stuff myself.

So are you thinking that this’ll be automomous? Like, all the AI hardware in the robot itself?


  • Author
  • Cadet
  • February 16, 2026

That is the hope yeah


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Axelera Team
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  • Axelera Team
  • February 16, 2026

Love it. Make sure you keep us posted on how it’s going! Really want to see this in action. I feel like I might need one… 😅