For my 2560p with i7 2620 (Windows 10), which I got very cheap I have run fan_30pct and it worked better than without it
http://forum.notebookreview.com/threads/hp-2510p-owners-lounge.352887/page-33#post5638409 (a big thank you to the programmer!)
But the noise of the fan is very annoying, even if the speed is low. So I have simply removed the fan for the present. The door is removed as well the dvd-tray. The 2560p is on a docking station and the temps are ok (surfing about 60 degrees Celsius and the other temps about 50 degrees Celsius)
Rightmark rpm panel to set the minimum cores to 5%.
"cut out hole on service door under fan and add black steel honeycomb mesh (never done, need right tools first)
find a cooling solution, either one short server heatsink or just a big piece of copper to fit on top of the heatsink.
possibly tall enough to touch service door to use it as well." Are you happy with the effect?
" Expresscard 34 to USB 3.0x2 card" Which one did you buy?
"Basically the idea is this:
32x32x2.5mm copper shims on the heatsink to enhance its heat soak abilities
200x100x0.5mm copper mesh to help spread the heat across lower area near the service door - it's quite convenient as you can thermally join the laptop base with it.
Holes in service door in fan and optical bay area - should help the system breathe & direct the cool air through the hot mesh which in turn improves the cooling by a lot." Have you got any experience with it now? I wondered to install a Fischer profile like http://de.farnell.com/fischer-elektronik/sk-81-75-sa/strangk-hlk-rper-100mmx75mmx15mm/dp/1211716 in the DVD tray and to use a heatpipe to connect it to the present copper on the cpu. But I don't have a clue how to do it.