You can use any normal thermal paste on the Northbridge and it really is a matter of personal preference. I use whatever I have knocking around in these situations and they all seem to work fine.
Ok, thanks for clearing that up. Thinking about it I might just whack a new heatsink on it anyway
Not much of a priority; what is though is sorting out my newer mobo
Yes I'm sorry to have been a bit open in my answer there but as absic said anything half decent will do. It is not as critical as the CPU interface.
No need to apologise. To be honest I wrote the question in a general guide sort of way when I needed to word it slightly differently
Being the chipset I thought it had to get rid of more heat