3/26/2023 0 Comments Dell 9100 usb 3 card![]() Make sure you cover the ZIF socket with something to keep it dust free. Here's the final shot showing no CPU or video card. Don't apply pressure to the corner of the CPU with a screwdriver! Then only a tiny bit of pressure was required to lift the CPU. Stop when it's only just too hot to touch. I placed the assembly upside-down so the CPU wouldn't fall off, and blew the heat gun (or hair dryer) on the two end fins. I think the dental floss is a bit over the top (and time consuming), so I used a heat gun. There's a great thread here about removing a stuck CPU. oops! The CPU pulled right out of the closed ZIF socket! Note that you can't do this to a warm laptop, unless you're fast, as it takes time to get this far. Experts would recommend you do this to a hot machine, and this is the reason why: There's the CPU nicely stuck to the block. The block gave a bit of resistanc e, and then lifted. I removed the video card (as you saw previously) and then the four screws on the block. Once I had got this far, I suspected the blockage was after the fan, but before the Aluminium block. This Aluminium block has two copper pipes running to the left and right fans, for extra cooling. ![]() In the picture on the right you can see the Microprocessor Thermal-Cooling Assembly starting with the CPU fan at the bottom middle, running over the northbridge copper heat transfer pipe, and finally to the CPU heatsink. After removing the video card, the next step was to access the CPU fan. ![]()
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