P750DM-G Shutdown Problem

Discussion in 'Sager and Clevo' started by DM g, Aug 26, 2019.

  1. DM g

    DM g Notebook Guru

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    I am trying to solve this problems almost 2 weeks. I couldnt so last chance i am asking to you guys.
    I love this machine.
    Specs:
    -Cpu: 6700k Delided
    -Gpu: GTX 980M 8Gb CL Ultra with premamod vbios v2
    -Ram: 8x2 2400Mhz
    -Psu: 230W
    -Bios: Premamod (thanks god)
    When Gpu load is %99-100 and Gpu power over 90,100W i had restart problem. I checked psu with multimeter 19.68V and DC signal was normal. I saw some orange point on solder points with Gpu inductors and some black marks.
    I smashed thermal pads for good heat transfer and i bended the heatsink for good touching but when i m bending i bended Cpu part to. Desambled. When i try to start pc it shutdown until 2 seconds. If I press to cpu part when screwing this issue happening maybe some heatsink part shorting. If i screw it soft pc start normal but cpu temps rising like hell with prime95 test. idle is 40 C with max fan. I will find some copper shim for cpu 50mm x 50mm thickness 0.5mm-1mm. I m opened for any idea.
    How can i find r22 inductors or other parts for 980M, and can i fix cpu issue with copper shims? Thanks in advanced.
    Sorry for my bad english.
    https://drive.google.com/file/d/1-G8oAEQhotue3uI1qAdq4-9Di01Yc-Qf/view?usp=drivesdk
    https://drive.google.com/file/d/1_OPwXYHOkg69CRGSbfat2fFOTBJEaTaU/view?usp=drivesdk
    https://drive.google.com/file/d/1-07PtY01D39W2ohjMh1UkatrSl3NAUuS/view?usp=drivesdk
    https://drive.google.com/file/d/1--5urKh_VdXUDPxAhargHgRs44ZAQdGy/view?usp=drivesdk
    https://drive.google.com/file/d/1-J1hEIKkg5_Hxegj2By2rtbzHzJZBLSx/view?usp=drivesdk
    https://drive.google.com/file/d/1-KJPL1jURglyiFLAxJS3sk9MXCdS6fJ3/view?usp=drivesdk
     
  2. Meaker@Sager

    Meaker@Sager Company Representative

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    I'd try and get the heatsink flat again, too much pressure can be bad.
     
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  3. DM g

    DM g Notebook Guru

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    I tried but wouldnt be the original one, cpu part not fit when i release it to place. Did you know how can i find 980M inductor sir? I watched eli tech on youtube. He fixing all cards.
     
  4. Arrrrbol

    Arrrrbol Notebook Deity

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    Easiest way is probably taking some from a dead card (providing that component isn't the one which is fried). You can probably find them on eBay of Aliexpress if you search for the part number.
     
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  5. DM g

    DM g Notebook Guru

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    I wrote on google but couldnt find. Now i found this: https://www.ebay.com/itm/HPI1040-R22-2pcs-Inductor-wire-SMD-220nH-Ioper-35A-0-9m-Body-dim/293169922033?_trkparms=ispr=1&hash=item444249fff1:g:k7AAAOSwmE9b9n3m
    is it okay for amparege or ohm?

    Type of inductor wire
    Mounting SMD
    Inductance 220nH
    Operating current 35A
    Resistance 0.9mΩ
    Body dimensions 10x10x3.8mm
    Tolerance ±20%
    I guess i need something like datasheet of 980M.
    I found easily these parts on aliexpress too you were right.
    Could you check Gpu pictures what dou you suggest to change else of inductors sir?
     
    Last edited: Aug 27, 2019
  6. jaybee83

    jaybee83 Biotech-Doc

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    Meaker is definitely the one to ask about this ;) or you can also try @Khenglish

    Sent from my Xiaomi Mi Max 2 (Oxygen) using Tapatalk
     
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  7. Meaker@Sager

    Meaker@Sager Company Representative

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    Dead card salvage is your best bet. If you can match the R number on a similar package that's best. If not for balance reasons you may be best off matching them all.
     
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  8. DM g

    DM g Notebook Guru

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    Thanks for answers, then i will change all of them if i cant find a death card. I must check mosfets too for shorting.
     
  9. Meaker@Sager

    Meaker@Sager Company Representative

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    I added more to mine to have 6 total.
     
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  10. DM g

    DM g Notebook Guru

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    I will buy these i guess:
    http://www.ti.com/product/CSD87350Q5D but inductors is problem. Mr. Meaker what did you think about orange mark on solder points is it some kinda oxidation and if i use copper shim without thermal paste for Cpu will be okay?
     
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