Power adapter suddently not detected
My Dell 14-7437 is suddenly not charging. Power adapter is not detected with or without the battery. I’ve tried other Dell adapters to no avail. Any advice is appreciated.
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Hi @ucd ,
The DC-In jack in the laptop may be faulty.
Here’s the owner manual for the laptop, taken from this webpage.
Go to p.22 to view the necessary pre-requisite steps and then the procedure to remove/replace the power adapter port, (aka DC-In jack).
The guide shows how to access the port and when it is disconnected from the motherboard you can use an Ohmmeter to test the connections between the socket and the cable plug to check the wires for continuity.
If the connector is faulty (sometimes the inner connector breaks internally in the connector), search online for Dell Inspiron 7437 DC-In jack to get results for suppliers.
Here’s just one supplier. It is only shown to give you an idea of the cost of the part and what it looks like. There are other suppliers online that may suit you better.
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I would try a new in box power adapter first, but make sure it is an OEM 90W - Dell uses a sense IC that connects to the center pin to detect the power supply wattage that also looks to make sure it’s an OEM adapter. I had an issue with this when I had my E6540 to the point I went through a few adapters (130W) before I had one that never had an issue. Oddly enough, Dell cares more about blocking power adapters then 3rd party batteries. When you buy one, anything below 90W is a waste of money since it’s not useful on any system with respectable hardware - you also have the thin tip, so you either need a pass-through adapter, the 90W adapter with the OEM adapter in the box or an adapter with the thin tip.
It shouldn’t be anywhere near as bad on the 65/90W units, but since it happens more then it probably should, I would start there. If the adapters used are known good and test good on another Dell laptop, then you have an issue with the jack or motherboard. If you need to borrow a laptop, I would ask around to see if anyone has one or has a few and can bring one somewhere so you can do the tests while they use their preferred machine.
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