Framework 16 5070 Expansion bay not recognized

Community Support
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21

Yes, there is not much you can get wrong. The orientation you have them installed in the pics is correct.

The only thing i can think of is maybe forgetting to tighten the “two additional screws are on the chassis itself”, before placing the interposer there.

The pads on the GPU or mainboard might be a little dirty, but unlikely if its a new GPU board. It might be worth a close look at them, to make sure.

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Yeah I tested with a multimeter and all three interposer seem to have continuity.

It’s confusing but I really don’t want to buy a main board due to this is it appears to be working.

Thanks for the help!

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Yes, I don’t think the problem is the mainboard, or at least one cannot prove that at this stage.
What we do have:

  1. The mainboard detects the Expansion bay Board ID resistor, so the mainboard detection of Board ID resistor 1 is functioning correctly. The same pin on the mainboard is used to detect the Boards ID resistor 1 on the 5070 card.
  2. When trying with the GPU card, the Board ID resistor 1 sees only an open circuit (it is measuring the same as it would for an open circuit), so one would assume something not connecting correctly. The only difference then is the interposer and the GPU card.
  3. You have already swapped out the interposer and the GPU card, but no luck.

What has therefore not been proved as being good is:

  1. Both GPU interposers.
  2. GPU Card.
    As the Board ID 1 and Board ID 2 is just 2 resistors, it seems very very unlikely that both resistors have somehow been dislodged from the GPU card. So I doubt the GPU card is to blame here.
    So, that is why I still think it is an GPU interposer problem.

I know it seems unlikely, but I would push for a 3rd replacement GPU interposer. To me, that is the most likely cause.

I guess there might be something you are doing wrong with the interposer install, but I cannot think what, because, as you say, its not particularly complicated.
Maybe you could watch the install video on the FW web site, and see if you can spot something that you and me are missing with the process.

Question:
Did the 5070 GPU come as a single unit, with fans, expansion GPU bay, PCB already installed?
I am just trying to think of maybe something causing the pressure between the GPU PCB and the interposer not being enough pressure to make good contact.

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24

The GPU does come as a single unit yes.

Yeah I agree with you but I think support is at a point with me where they are trying to just say I need a new mainboard and end the conversation.

At this point I would be comfortable sending the laptop in to them so they can confirm the issue themselves.

25

So today I tried something: I tightened the interposer screws as hard as I could. I was wary to do this because of this:

Lower the Graphics Module Interposer into place, noting the orientation as shown.

  • Tighten the 4 captive fasteners to secure the Interposer.

  • Be careful not to overtighten fasteners here. This step does not require excessive force.

But after absolutely wrenching them, the module was detected.

I blame myself but I fear the guide may be going a little too soft here.

EDIT: If anyone finds this and is having similar issues, try tightening the screws much more than expected.

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