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In my Dell XPS 9550, I have noticed that two of my 6 heatsink screws hold-downs are out from the motherboard, causing the heatsink part near to the GPU loose, accordingly, less contact with the GPU and less heat dissipation. I need to know how to fix these screws hold-ups again to the motherboard with a kind of glue that can withstand the high temperature generated by the GPU during load time. I have found over the internet that it is a common issue for XPS 9550. This is a link of the picture that might give a better understanding of my issue., which I found over the internet as well.
Hi @h_amak , I don’t know your laptop but was wondering if it may be better to see if you can use a suitably sized nut/star washer and bolt arrangement to hold down the heatsink. That way you won’t have to worry about the heat problems This of course depends on whether there is enough space under the systemboard to accommodate either the nut or the bolt head, depending on which way it was installed. It may have to be insulated as it passes through the hole (not sure about that) to prevent any possible electrical problems. Here’s a link to the service manual for your laptop (taken from this webpage which may be of some help. Scroll down to p.50 to view the necessary pre-requisite steps and then the procedure to remove the systemboard.
The corresponding nut for the screw is press-fit into the board. Your best bet is to glue it down. Believe it or not, the gel type of superglue should work the best. Be careful not to get any of the glue inside of it though. An epoxy may work, but being thicker, may be more difficult to get in place to work effectively. Completely remove the heat sink to give yourself room to work and try the super glue. Let us know how you make out. Dan
FIXED! (see reaction) Epoxy can indeed stand the heat, however it’s quite brittle, therefor the glue can break loose. But it’s not bad, and as there will be no UV light near the glue, you can try off course. As I probably have the same issue with mine, I personally will try to see if I can re-solder a bolt to the original spot on the motherboard, or otherwise try the bolt arrangement. In case I can reach the back to use a press-nut from the back, I might try that. 2 things: 1)when touching anything on your motherboard I recommend you earthen yourself, so your static energy cannot shock anything on the board. You can Google how to do that;) 2) I will replace the cooling paste when doing this fix and recommend to to that. ps about drilling a hole in pcb’s: the silicium of the PCB can make it a slow process.
