And done.
Was a lot more of a palava than I expected but that was mostly down to my own stupidity.
I managed to:
- lose one of the brackets that holds the fan in place,
- Use too much paste as it was runnier than expected
- hurt my back as it was on the floor due to me being a lazy arse and not wanting to unplug everything
- spend 20 minutes getting increasingly angry that I can't screw in a screw, to only find it was the wrong screw
Anyway, It did boot up, but doesnt seem to have made any difference.
I did a BIOS reset earlier, and the resting temp in BIOS is now 45 rather than 63C so that's something. I wonder if there was some Intel OC going on I wasn't aware of.
Just ran a Timespy 3dMark and it managed to complete, but the temperatures were all over the shop again, with them peaking at 90C towards the end.
I might have to accept defeat on this one and take it into a local PC shop to see if they can work out the issue. So Frustrating.