How square do you need to cut a ribbon cable for it to work?

My laptop has always been a pain turning on and just a pain in general. The standard procedure is to press the power button down with my whole fist. Today I decided to clean the insides of it and I accidentally bumped the ribbon that connects the MB with the Power Board and ended up breaking off the little piece that keeps the cable in place. As far as I know, it can't be fixed unless I buy a replacement Power Board. However, answers online say that as long as I can keep the ribbon in place, then it should work.

On closer inspection, it seemed some of the aluminium on the end of the ribbon cable had come off, so I snipped off a little of the edge. However, I'm not too sure if it was my cutting or the Power Board itself is broken, but it still doesn't power on. The end of the cable is ever so slightly not square.

I'm considering attempting to cut the ribbon cable again but I decided I would ask here first before trying again. One side is probably less than a millimetre longer than the other.

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Hi @gummi ,

If the aluminium has come off it means that either the particular wire is broken with respect to providing a continuous connection from the connector end to the power board end or it may not be long enough when inserted into the connector for a proper electrical connection to be made between it and the connector.

Here is a video that shows how to make an appropriate ribbon cable to match a faulty one. (If this is the type that you are talking about).

There should be a board number printed on the power board. If you search online using just the number only you will get results for suppliers of the board. At least you will know the cost of a replacement board.

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Alright, I'll look into it. Thanks a lot!


I've ordered a replacement power board, just to be safe. Thanks for the help.


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Dylan To will be eternally grateful.
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