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11 Posts
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March 30th, 2020 17:00
15 R3, dead, shot circuit when plugging in AC adapter
I left my 15R3 running over night for calculations, in the morning it was off and the blue light on the adapter plug was off. Re-plugging the wall adapter when leaving the laptop unplugged does bring life back into the adapter (blue led in plug goes on). But de blue led dies again when plugging the laptop in again. You can also hear a shorting sound and smell a bit of ozone afterwards.
Searched on the internet a bit, can find a lot of similar problems on dell laptops, and heard it was commen problem around my manufacturing time.
I opened up the laptop and unplugged everything I could from the mainboard (Battery and all other cables I could find) but still no life. Unpluging the AC cable toward the mainboard and testing this separately does not show any problems, so the problem must be on the main-board I guess.
I made a thermal image of the mainboard to hopefully find what is shortening and found a IC with the code : MDU1512 HS9501GP to heat up very rapidly during the short time the AC needs to detect an shorting before going into safety shutdown. There are 2 of those on the mainboard, and only 1 is heating up.
Here the thermal Imaging : https://youtu.be/Fkx-a_lkcH8
Anyone any advice? The laptop was bought end 2017, so I guess there is no "official" warranty. New mainboards cost easily around €1000,-. But expecting some good will from Alienware if this is indeed a known problem because of bad component quality.
I hope Alienware can help me with this one. This is my first Alienware but have had a number of problems with it : (lid hinge was replaced, screen was replaced, and now mainboard needs to be replaced?). I hoped Alienware could be my High-End system supplier for rest of my live that stands behind there products. But with my current experience I'm unsure if I will stay with this brand and advice others.



Mickno
3 Posts
0
June 6th, 2020 21:00
Same with r4 right after my waranty expire and right after the bios update it start to get around 90-95°c . Opened up because i got no power and see this IC (PQ701) got melted ! Note that they changed 3 time my motherboard under waranty and this board was only 6 months old
ZZZZOO
10 Posts
0
June 7th, 2020 00:00
did they re-install your OS while changing your motherboard?
Mickno
3 Posts
0
June 10th, 2020 05:00
No they didn't