RTX 2070 troubleshooting

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • madverkus
    New Member
    • Dec 2021
    • 5
    • Finland

    #1

    RTX 2070 troubleshooting

    Hello, I just bought a RTX 2070 which was from a broken prebuilt PC.
    This GPU gives just a black screen but the PC still boots up, not recognized by Windows.
    This is my first broken GPU which I am troubleshooting since trying to learn how these things work.
    This GPU has no prior repairs done and I just took the heatsink and stuff out of the way and did some basic multimeter measurements and came up with few questions.


    If you can see anything concerning on the board let me know

    None of the connectors were shorted ground, on the first picture the red marked coil is shorted ground and I marked couple of the coils on VRM with blue which seems kinda off.
    Also on the backside around VRM there is some darker spots, but doesn't seem like it's been burnt, is this normal?

    Any ideas how to troubleshoot further?
    Attached Files
    Last edited by SMDFlea; 08-16-2023, 07:28 AM. Reason: posted images to badcaps from external link
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 31003
    • Albion

    #2
    Re: RTX 2070 troubleshooting

    check if any mosfets are shorted,
    if not then get a schematic - probably on this forum.
    then start checking all the voltages to see if any of the regulators are dead

    Comment

    • madverkus
      New Member
      • Dec 2021
      • 5
      • Finland

      #3
      Re: RTX 2070 troubleshooting

      Originally posted by stj
      check if any mosfets are shorted,
      if not then get a schematic - probably on this forum.
      then start checking all the voltages to see if any of the regulators are dead
      All of the mosfets seem to be good.
      That one coil I did mention in the post wasn't also short, but just a low ohm reading, around ~10 ohms.
      Checked all the voltages and since 5V is missing the whole minor rail is missing, measuring only the 12V.
      I think the next step would be checking the enable signal from 12V to 5V?

      Just have to first figure out where to measure it

      Comment

      • stj
        Great Sage 齊天大聖
        • Dec 2009
        • 31003
        • Albion

        #4
        Re: RTX 2070 troubleshooting

        a coil at 10ohms?
        a coil should look like a short.

        Comment

        • madverkus
          New Member
          • Dec 2021
          • 5
          • Finland

          #5
          Re: RTX 2070 troubleshooting

          Originally posted by stj
          a coil at 10ohms?
          a coil should look like a short.


          This is not exactly the same board but getting very similar readings, in the original picture I posted of my GPU it's the lower coil near PCIE connector which is giving 10ohms

          Comment

          Related Topics

          Collapse

          • reessi
            Acer Alienware Nitro 5 (GH51G LA-L181P Rev: 1C) & Dell Alienware M15 (GDP50 LA-k452P Rev:1) - Both Shorted PCH (SRKMA)!
            by reessi
            Hello:

            I have both these laptops that appeared to have the same fault so I thought I would have a go at replacing the PCH as something to learn, they both are using the same PCH.


            I started on the ACER:

            Up on connecting power no signs of life but current is consumed from the bench power supply and the PCH is hot.
            All the caps on the top of the PCH are showing 0 ohms and the 3.3v rail is shorted.

            I followed the videos from Sorin, Electronics Repair School on Youtube heating from the bottom to install. I practised on around 10 scrap...
            10-29-2024, 11:31 AM
          • Document Archive
            NVIDIA GeForce RTX 2060 / RTX 2070 Schematic & Board View
            by Document Archive
            NVIDIA GeForce RTX 2060 / RTX 2070 Schematic & Board View

            The GeForce RTX 2060 is a performance-segment graphics card by NVIDIA, launched on January 7th, 2019. Built on the 12 nm process, and based on the TU106 graphics processor, in its TU106-200A-KA-A1 variant, the card supports DirectX 12 Ultimate. This ensures that all modern games will run on GeForce RTX 2060. Additionally, the DirectX 12 Ultimate capability guarantees support for hardware-raytracing, variable-rate shading and more, in upcoming video games. The TU106 graphics processor is a large chip with a die area of 445...
            10-02-2024, 07:51 AM
          • pi314314
            LPG65-19UL6 - Troubleshooting Broken PSU of LG TV
            by pi314314
            Hello,

            After unplugging and plugging my TV it became broke. It is not turning on even standby LED is not litting. I checked power supply and I could not read 13V, PWR_ON or P-DIM(those are going to main board screenshot can be seen). I have checked bridge diode output 310ish DC. And I am reading same voltage on some capacitor as well. When I visually check and smell components I did not see any awkward thing. How can I proceed to trouble shot? And do you have schematic of this power supply by chance? I could not find in my web search.

            TV Mods: LG65NANO866NA
            ...
            07-27-2024, 11:35 AM
          • FlameOnion
            MSI 7600 GT, shorted capacitors
            by FlameOnion
            I got this gpu that does not work, is not detected in windows(not shown as a pcie device),the heatsink got a little warm. MSI 7600 GT PCIE, NX7600GT-T2D256EZ.

            Tested in different motherboards, same issue. I got it with a capacitor broken(one leg was left), and an broken indictor related to fan pwm I think.
            As a hobby I tinkered with arduino, I got a soldering iron and a hot air gun, no experience in repairing(occasionally watched videos of northridgefix)

            I measured randomly capacitors for short and found some shorts on a few, and found short on a few mosfets....
            05-23-2024, 07:30 AM
          • BalkanBoy
            Dead Razer Blade 14 2022, shorted CPU?
            by BalkanBoy
            Hi,

            today I got Razer Blade 14, Ryzen 9 6900HX and RTX 3070Ti.

            Laptop was completely dead. I found shorted CPU VRM mosfet, shorted 19V mosfet and blown battery fuse.

            I replaced it all, but still on CPU coil where mosfet was shorted I got very low resistance, near 0 ohms. On other CPU coils I got around 3 ohms.

            Laptop now raises voltage on whole board, but still nothing comes on the screen. CPU gets 0.7V on all coils except the shorted one. CPU gets only slightly hot, below 40 C.

            I removed coil and injected 0.7V, it draw around...
            09-27-2024, 12:44 PM
          • Loading...
          • No more items.
          Working...