I recently replaced the cooling system on my laptop after the fan broke but did not add the conductive paste covering the parts of the computer that generate a lot of heat. Should I add conductive paste or will it be fine without it? Is this a good product to use for that http://cgi.ebay.com/Thermal-Grease-...emQQptZLH_DefaultDomain_0?hash=item3a4c8b7f43 ?