Clevo x7200 no power after GTX 675M install. Reinstalled 460M Still no power.

Discussion in 'Sager and Clevo' started by Drammar09, Mar 14, 2021.

  1. Drammar09

    Drammar09 Notebook Guru

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    I have a Clevo x7200 with an i7-970/460m. The system is a 1 owner system never had issues before. I switched in a gtx 675m and now the computer will no longer power on. I have reinstalled the gtx 460m and still now no power. The indicator lights on the front show when it is plugged in but both lights stay orange. Even if I unplug the 330w psu brick the indicator lights still both stay orange. I have tried resetting the CMOS by removing the battery and holding power button, I've tried leaving it plugged in for 12 hours, I have taken both heatsinks off and repasted both the GPU and CPU as well as replace all of the thermal pads. I also have dusted very lightly with compressed air to insure all connections are clean. Also tried removing the ram, both HDD/SSD's and nothing. I don't get it I've done work on plenty of different laptops and even a few clevos and never had a no power after installing an MXM card. There was no popping sounds, no burnt smells, nothing at all. I have ordered a new CPU i7-990x and also have a gtx 580m on the way in hopes of maybe the cpu has given up. I've tried powering the system on also with both the GPU and or the CPU removed and still makes zero difference at all. Can anyone help here lol cause I could use it and I cannot seem to find motherboards for sale so I will have to buy another entire laptop to fix this one.
     
  2. Tech Junky

    Tech Junky Notebook Deity

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    Yeah, this sounds like something on the MOBO is wonky for whatever reason after the MXM attempt.

    It could have been a static discharge and one of the components got fried.

    The only thing I don't see attempted is remove power, cmos, and battery and then discharge everything by holding the power button like before.

    As to the MOBO replacement there might be a clue in the service manual as to upgrade options for different model #'s to use when hunting something new down.
     
  3. Drammar09

    Drammar09 Notebook Guru

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    Yea I did remove cmos bat, power supply, and the normal battery while holding the power button for 60 seconds and still no difference. It's crazy cause I wear a static grounding band and also use a static grounded mat for all my repairs and never have I encountered such an odd issue. I would think if the motherboard truly shorted then it wouldn't recognize when the battery is plugged in or whether it is being charged or not. I am wondering if maybe the daughter board to the power button has failed or something I mean it just don't make any sense to me. I've put gtx 480m's into my alienware m17xr1 before just to test it and still didn't have any issues.
     
  4. Tech Junky

    Tech Junky Notebook Deity

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    If you're comfortable with it then you could try shorting the power switch to see if it kicks on or not. If it works then your hunch is correct and you only need to replace the switch.
     
  5. Drammar09

    Drammar09 Notebook Guru

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    Going to go ahead and say board is dead. So def in search of another board or a donor x7200/7280
     
  6. Prema

    Prema Your Freedom, Your Choice

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  7. Drammar09

    Drammar09 Notebook Guru

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    Hey Prema heard a lot of good things about your builds etc. Hopefully someone can figure this out or at least put me intouch with someone selling an x7200 MoBo or entire x7200 laptop to use as a donor. I do notice with the cpu, gpu, ram, cmos battery, and keyboard removed that when I plug in the battery the led indicator used for showing if the system is powered on turns green fast, orange fast, then one long green, then back to solid orange. Not sure if this is some kind of system code or not. I've never heard of installing an MXM card bricking an entire motherboard. I was wearing a grounding strap, and even had the laptop on a grounded static free mat as well. At this point I'd even pay someone to repair this board if it needs repaired.
     
  8. Khenglish

    Khenglish Notebook Deity

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    If there was a short preventing power-up, one of the power lights blinks when you press the power button. If the mobo's embedded controller was dead then the power LEDs likely wouldn't light up at all. It sounds like it's just flat out not reading the power button.

    The connector I boxed is your power button connector. Bridge the two pins shown and see if it turns on. You can poke them with a small screwdriver, needle, whatever. Also I can't see the connector labeling so I may have the pins backwards (it may be the 2 upper pins). If you short the wrong pins nothing bad will happen, so try both the upper and lower pair.

    FYI with no CPU or RAM installed the mobo will turn off after about half a second, but that's enough for this test.

    For a quick test of the embedded controller in case it's partially burned up, hold your finger on the chip labeled "3". If the chip is hot when the system isn't even on then the embedded controller is dead. If it's cool then it is likely fine.

    x7200_pwr.jpg
     
  9. Drammar09

    Drammar09 Notebook Guru

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  10. Drammar09

    Drammar09 Notebook Guru

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    I will defiantly give that a try tonight when I’m home. I took this picture this morning. This is all it does both lights like this 24/7. I’ll let you know how the power short procedure works out for sure.
     
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