HS with blob on bottom?

[adzul]

I have just got a Thermoengine HS & Fan. It has got a square of grey squidgy rubber type stuff on the cpu mating surface. Should I scrape it off and clean it with isopropanol, or put ASII on the grey sh*t?
advice plz ppl
'zul

 

[Hoot]

Lose the pad. Clean off any residue it may leave behind. Put the AS on the core. Mount it, pat it on the butt and let it rip.
For a little more reward, consider lapping the ThermoEngine baseplate. The one I got had milling micro-grooves in it that you could feel with your fingernail. Articles on lapping abound.

Hoot

 

[Shadow ÒÓ]

I'll throw in, a lot of people feel it's necessary to scrape the pad off with a knife or sharp object. In doing that you'll generally put some pretty deep gouges in the sink. Patience and solvent........you can remove it w/o damaging the sink. If you plan on lapping it (which you should) it's not a big deal, but small scrapes can look like the grand canyon in the cooling business.