TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC
Start a Discussionhttps://teslamotorsclub.com/tmc/tags/

Inside the NVIDIA PX2 board on my HW2 AP2.0 Model S (with Pics!)

Discussion in 'Model S' started by kdday, May 21, 2017.

Tags:
  1. kdday

    kdday Member

    Joined:
    Oct 29, 2016
    Messages:
    182
    Location:
    AZ
    Hello All-

    Today I was reading the following thread (which is wonderful by the way) about the known and unknown properties of the HW2 camera suite. I suggest you read it if you're into highly technical stuff:

    AP2.0 Cameras: Capabilities and Limitations?

    However, even after seven months since release, nobody has decided to disassemble the new NVIDIA PX2 AP2.0 box inside the glove compartment and see what is inside. Today I did. Many have speculated that Tesla was using the dual-socket CPU, dual-socket GPU board that was touted in the PX2 press releases. NVIDIA's website list two versions of the board, a single socket board, and a dual socket board. Here's a screenshot:


    Screen Shot 2017-05-21 at 3.00.11 PM.png

    Many people have assumed that because the "Autochauffeur" board shows 8 camera connection points on the dual socket board, that this was the board Tesla was shipping in HW2 cars. However, as pointed out in the linked thread above, the "Autocruise" board also supports up to 8 camera (plus radar/lidar) inputs. After tearing down my car today, I can virtually confirm that Tesla is shipping the "Autocruise" version of the board, with 8 camera + radar inputs, with a single CPU and GPU socket. The PCB is a custom Tesla design that looks overly large for the heatsink enclosure. My guess is that this is a Gen 1.0 design that they knew they would revise into a future dual socket version in the future. They've built the AP2.0 hardware box as a form factor for a larger board, but we get the small board's contents at the moment.

    Here are the teardown instructions and pictures of my own HW2 AP2.0 car's NVIDIA PX2. It appears to be revision 1078321-60-C.

    First - the car: December 2016 S60 RWD:

    IMG_5215.JPG

    First, POWER OFF the car via the main screen settings selection. Then open the glove box (otherwise it'll be locked and closed). Then, disconnect the 12v at the battery's negative terminal, then disconnect the emergency power connection (don't cut it, just disconnect):

    IMG_0788.JPG
    IMG_1298.JPG

    Then remove the trim below and above the glove box:

    IMG_0752.JPG

    IMG_8583.JPG

    Remove the six screws that hold the glove box in place, and remove the three wires connected to the glove box - and wallah - out it comes!

    IMG_8226.JPG

    Now you can see the AP2.0 computer above where the glove box was (it's the big silver box). Disconnect the wires and remove the four nuts that hold it in place. Out it comes!

    IMG_4386.JPG

    IMG_4874.JPG

    IMG_0587.JPG
     
    • Informative x 44
    • Like x 4
    • Love x 4
    • Helpful x 1
  2. lunitiks

    lunitiks ˭ ˭ ʽʽʽʽʽʽʽʽʽ ʭ ʼʼʼʼʼʼʼʼʼ ˭ ˭

    Joined:
    Nov 19, 2016
    Messages:
    1,414
    Location:
    Prawn Island
    Amazing
     
    • Like x 1
    • Funny x 1
  3. kdday

    kdday Member

    Joined:
    Oct 29, 2016
    Messages:
    182
    Location:
    AZ
    Then I decided to open it up and see what was really inside...
    IMG_4027.JPG
    IMG_0676.JPG


    IMG_1321.JPG
    IMG_0583.JPG IMG_0584.JPG IMG_0586.JPG
    IMG_0582.JPG
    IMG_0591.JPG
    IMG_0588.JPG
    IMG_0589.JPG
     
    • Informative x 21
    • Love x 5
    • Like x 3
  4. kdday

    kdday Member

    Joined:
    Oct 29, 2016
    Messages:
    182
    Location:
    AZ
    Here's the board in its glory

    IMG_0590.JPG
     
    • Informative x 29
    • Love x 11
    • Like x 3
  5. kdday

    kdday Member

    Joined:
    Oct 29, 2016
    Messages:
    182
    Location:
    AZ
    Thank you for the help. Made it very quick to do.
     
  6. lunitiks

    lunitiks ˭ ˭ ʽʽʽʽʽʽʽʽʽ ʭ ʼʼʼʼʼʼʼʼʼ ˭ ˭

    Joined:
    Nov 19, 2016
    Messages:
    1,414
    Location:
    Prawn Island
    And there's the Ublox! M8L! This totally answers so many questions. Can't thank you enough
     
    • Like x 2
    • Helpful x 1
  7. Bladerskb

    Bladerskb Like how many times do i have to be right?

    Joined:
    Oct 24, 2016
    Messages:
    705
    Location:
    Michigan
    So tesla hardware is even less powerful than they claim it is.

    Good work bro!
     
    • Disagree x 8
    • Helpful x 3
    • Like x 1
  8. kdday

    kdday Member

    Joined:
    Oct 29, 2016
    Messages:
    182
    Location:
    AZ
    What questions?

    Also, what's interesting is that my revision is 60-C. Your revision models you listed were all 70-x numbers. Why is mine 60?
     
  9. stopcrazypp

    stopcrazypp Well-Known Member

    Joined:
    Dec 8, 2007
    Messages:
    9,165
    #9 stopcrazypp, May 21, 2017
    Last edited: May 21, 2017
    So confirmed that it is 1 SoC and 1 discrete GPU connected via MXM.

    Edit: The process to swap isn't as onerous as I expected. I can see why Tesla said it's relatively easy to upgrade. With the GPU on MXM, they can potentially also do a GPU-only swap to the new Volta.
     
    • Informative x 2
    • Helpful x 1
  10. stopcrazypp

    stopcrazypp Well-Known Member

    Joined:
    Dec 8, 2007
    Messages:
    9,165
    Actually, it is exactly as powerful as they claim. 12 trillion OPs, which is half the 24 DL TOPs quoted by Nvidia for a PX2 with 2 SoC and 2 discrete GPUs. This makes sense now actually.
     
    • Informative x 5
  11. bjornb

    bjornb Member

    Joined:
    Feb 12, 2015
    Messages:
    128
    Location:
    Norway
    I disagree, Tesla have something in between "Autocruise" and "Autochauffeur". My understanding is that the PX 2 Autocruise contains just a Parker SOC, no discrete GPU via MXM.
     
    • Like x 2
  12. lunitiks

    lunitiks ˭ ˭ ʽʽʽʽʽʽʽʽʽ ʭ ʼʼʼʼʼʼʼʼʼ ˭ ˭

    Joined:
    Nov 19, 2016
    Messages:
    1,414
    Location:
    Prawn Island
    Yeah @bjornb is probably right, still PX2 is touted to be a "scalable" architecture..
     
  13. kdday

    kdday Member

    Joined:
    Oct 29, 2016
    Messages:
    182
    Location:
    AZ
    Glad to be corrected.
     
    • Like x 1
  14. bjornb

    bjornb Member

    Joined:
    Feb 12, 2015
    Messages:
    128
    Location:
    Norway
    Did they reduce the amount of memory on the discrete GPU as well?

    PX2:
    [​IMG]
     
  15. kdday

    kdday Member

    Joined:
    Oct 29, 2016
    Messages:
    182
    Location:
    AZ
    It would certainly appear possible. The memory sockets on the GPU daughterboard are are only half used.
     
  16. verygreen

    verygreen Curious member

    Joined:
    Jan 16, 2017
    Messages:
    957
    Location:
    TN
    I wonder what's under that other heatsink?
     
    • Helpful x 1
  17. lunitiks

    lunitiks ˭ ˭ ʽʽʽʽʽʽʽʽʽ ʭ ʼʼʼʼʼʼʼʼʼ ˭ ˭

    Joined:
    Nov 19, 2016
    Messages:
    1,414
    Location:
    Prawn Island
    Probably nothing

    ;)
     
    • Informative x 1
  18. verygreen

    verygreen Curious member

    Joined:
    Jan 16, 2017
    Messages:
    957
    Location:
    TN
    um, what's the point of it then? Must be that other nvidia chip that's smaller, that I was told about
     
  19. Bladerskb

    Bladerskb Like how many times do i have to be right?

    Joined:
    Oct 24, 2016
    Messages:
    705
    Location:
    Michigan
    Powerful in the sense that it will deliver level 5 FSD while nvidia say not even close more like highway autonomy.
    This makes the "all cars have level 5 fsd hardware capability" even more of a sham.
     
    • Disagree x 3
  20. bjornb

    bjornb Member

    Joined:
    Feb 12, 2015
    Messages:
    128
    Location:
    Norway
    Parker SOC? (It would be nice to have this confirmed as well.. @kdday).

    Does it say GP106 here?

    [​IMG]

    Nvidia GP106 = Geforce 1060???
     

Share This Page