[179232]

Should I use some AS5 or the paste that comes with the Hyper 212+ when I buy it tomorrow?

 

[Boi 1da]

I would go with the AS5. I rarely use the thermal paste that comes with my coolers. If you happen to see some shin etsu while shopping grab that instead of the AS5.

 

[*AcidBath*]

AS5 is not the best choice to use on a Hyper 212+ since it needs to be replaced over time. I've been there, done that with my Hyper 212+ and its a major PITA to remove AS5 from its slotted base. The supplied TIM is adequate, or use something like AC MX-2 or MX-4 which lasts a long time.