Announcement

Collapse
No announcement yet.

Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

    The laptop blank screen and system crashes, and I need the resistors back in working order so that a repair clinic can diagnose the underlying issue its been having, the unresolved issue of black screen ntoskrnl, tdr_video_failure.
    They're 0402 and I couldn't take them out without frying one of them. It began with one resistor and then i screwed up. Now I cant find a mobile rtx 2070 schematic and the 0402 resistors arent labeled. Looking for the knowledgeble on the subject. Resistors r102,r40,and r34 from a eluktronics max 17 9750h+rtx 2070 That needs repairing.
    When i pulled r102 it measured 9.88Kohms so i replaced with 10kOhm resistor. r34 is actually still good but r40 got fried and replaced with 10Kohm Resistor. -Now the Dgpu wont load.
    When r102 was only one replaced the laptop dGPU ran fine, other than the unresolved issue of black screen ntoskrnl, tdr_video_failure. I could lower cpu clock speeds by 400Mhz, 4Ghz to 3.6Ghz, but the black screen crash would appear later on still. Liquid Metal spread evenly, good contact, and comparatively Low temps for both GPU and CPU under load. Any thoughts are welcome on the matter. Bad PCH, VRAM module, 12v Rail power issue?>:

    I also grabbed the download for a desktop rtx 2080 pcb schematic but wouldnt think if the resistor labeling would match. Although it might be possible to cross reference the FBx memory location on the desktop variant with the laptop counterpart. I am looking at FBC and FBD, r126,119, r125, & r118, r1158, r1159, r1205, & r1212. The common values are 1Kohm, 931ohm, and 121ohm, but i wouldnt know which laptop resistor to replace with the same values. https://www.badcaps.net/forum/showpo...6&postcount=82 <-> Link to post with rtx 2080 schematic DL


    Attached Files
    Last edited by SMDFlea; 09-03-2023, 05:24 AM.

    #2
    Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

    r34 ended up being 10k, replaced with 10k. r102 was 10k replaced with 10k, but r40 replaced by 10k,1k, and 121ohms isnt right.

    Comment


      #3
      Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

      Originally posted by Oinkypig View Post
      r34 ended up being 10k, replaced with 10k. r102 was 10k replaced with 10k, but r40 replaced by 10k,1k, and 121ohms isnt right.
      Post the laptop model number.
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

      Comment


        #4
        Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

        MAX17G120702194800143

        Eluktronics Tong-Fang chassis Max 17 9750h & RTX 2070 max-p

        r102 and r34 both measured 9.88Kohm out of circuit. not sure about r40
        First replaced r102 with 10Kohm - GPU and laptop ran
        Second - Replaced r40 with 10Kohm resisotor - GPU error device not started. laptop running on Igpu now.
        Third r34 out of circuit measured 9.88Kohm, and replaced with 10Kohm. Still no Dgpu function on laptop.
        Just ordered- 9.88kohm resistors 0402 and 0hm 0402 be here Thur
        Last edited by Oinkypig; 09-03-2023, 10:58 PM.

        Comment


          #5
          Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

          Something i should have done in the beginning was run MATS. Two things happened that might have started causing black screen pc crash under high load scenario. Stormy weather(possible surge) and noticed Liquid Metal possible(unlikely tho hindsight) contact with r102. In-circuit r201 matched all other resistors surrounding memory banks. ~3.2 one polarity and ~4.2 reverse polarity. Removed r102 with impedance of 9.88Kohms, same as r34. Replaced r102 with 10kohm, no change in laptop. Replaced r40 w/ 10Kom R. - laptop dgpu non functioning. replaced r34 with 10kohm R - same effect. 9.88kOHM resistors being shipped asap
          Ran MATS. 0
          mats version 400.184. Testing TU106 with 4 MB of memory starting with 0 MB.

          Read Error Count: 3785728
          Write Error Count: 0
          Unknown Error Count: 0

          === MEMORY ERRORS BY SUBPARTITION ===
          SUBPART /READ ERRORS/ WRITE ERRORS/ UNKNOWN ERRS
          ------- ----------- ------------ ------------
          FBIOA0/ 466816 / 0 / 0
          FBIOA1 / 479616 / 0 / 0
          FBIOB0 / 466816 / 0 / 0
          FBIOB1 / 479616 / 0 / 0
          FBIOC0 / 466816 / 0 / 0
          FBIOC1 / 479616 / 0 / 0
          FBIOD0 / 466816 / 0 / 0
          FBIOD1 / 479616 / 0 / 0
          Last edited by Oinkypig; 09-04-2023, 02:22 AM.

          Comment


            #6
            Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

            FKN

            Comment


              #7
              Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

              I managed to make some progress. No more read errors, and the card was barely recognized in windows.
              Mats 2MB
              https://imgur.com/4kiZufw
              Mats 20MB
              https://imgur.com/Ge9E2oo

              Can someone point out a "sorta" correct zener diode for B1 in this photo https://imgur.com/tL8oxQt. A 0ohm resistor can run the system but with nutty amounts of cpu voltage fluctuations +/-100mv ex: 1.08-1.25v, due to no voltage suppression.
              As for the GPU, i couldnt get the drivers to initiate but i was able to pull bios off the chip and write to bios chip. After writing back bios, the card is stuck on not being recognized by drivers. Nvidia drivers dont see a compatible GPU on the system as of right now Windows recognizes it as a Microsoft Basic Display Adpater. Should i proceed to replace the bios chip first or replace RAM banks B0 and C1? Also can someone aid in reminding me how a laptop GPU MEMORY orienation starts and ends from A1,A0,B1,B0,C1,C0,D1,D0 on a laptop PCB?
              Last edited by Oinkypig; 09-06-2023, 04:35 PM.

              Comment


                #8
                Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

                CPU voltage will vary according to CPU frequency and load.
                OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                Comment


                  #9
                  Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

                  Originally posted by Oinkypig View Post
                  Also can someone aid in reminding me how a laptop GPU MEMORY orienation starts and ends from A1,A0,B1,B0,C1,C0,D1,D0 on a laptop PCB?
                  Going from your second image in post #1.

                  On the bottom of the image are chips (from left to right): A1, A0, B1
                  Chips on the right side of the image (bottom to top): B0, C1, C0
                  Chips on the top side of the image (right to left): D1, D0

                  You've found with the MATS test that you have two bad banks, so I'd go ahead and remove them and replace them, then see if you have any changes.
                  Make sure to measure the GPU memory resistance after replacing each of the defective chips.
                  Last edited by ResoluteHawk; 09-07-2023, 10:19 AM.

                  Comment


                    #10
                    Re: Eluktronics Max 17 1st gen rtx 2070 resistor pcb repair

                    Originally posted by piernov View Post
                    CPU voltage will vary according to CPU frequency and load.
                    I dont think you understand, the cpu voltage will go from 1.2+v to 0.8v when fully loaded at full turbo speeds for split second. It causes entire system crashing. B1 is a zener diode 0603. I have schematics from the likes of similar boards and boardviews. If B1 is on the CPU Power VCCIN. Should it be a 1.8v, 3.3v, 5v zener diode?
                    I replaced GPU memory resistors r34,r40,r102 with 9.88Kohm r. And now instead of two bad chips there seems to be one chip error. https://imgur.com/1pkMxjC
                    Either r40 is not a 10Kohm value or the chip C1 is bad. By looking at schematics, its possibly 2.49Kohm
                    Last edited by Oinkypig; 09-08-2023, 07:57 PM.

                    Comment

                    Working...
                    X