Delidded, paste longevity?

[Finners]

I delidded a 4770k I picked up cheap and didn't give the paste to much thought. Just wanted to use something non conductive to avoid any disasters.

I've used noctua nt-h1 and initial temps are much better. A good 20 degree drop but now I'm starting to read that these sort of temps only last a few weeks with paste due to "pump out" and temps soon start to rise.

As delidding has been around for a while now what pastes have you guys used and what has their longevity been like? Don't fancy redoing my paste once a month.

I didn't stick the IHS back down either, just removed the sealant and clamp it down with the socket clip.

 

[Andrei23]

I used both CLU and CLP for delidding both an i5 3570k and an i7 3770k and the stuff was good for a year and even then I re-pasted cause I wanted to rather than actually needing to do it.

 

[Apache14]

Once a month sounds a bit excessive, but some thermal pastes do degrade over time.

A few people use liquid metal type TIM between the die and IHS (after insulating any resistors / contacts around the die). However the jury is still out on how safe that is in the long run.

 

[Disco_P]

See how temps are after a month with the noctua paste.

If it suddenly starts getting hot then buy some CLU/CLP