NB wayy hot

Hi
I have a Asus P4P800 Deluxe motherboard and the NB temperature goes upto 42 celcius when playing a game or doing cpu intensive tasks. My cpu temp is however 26 celcius(watercooled) while my NB is getting passively cooled by a heatsink only. Is this a safe temp for the NB to be at? I wnat to try to watercool the NB but i dont think any waterblock would fit it.

The fan from a AMD K-6 hsf will fit right on that heat sink if you just want to cool it a little cheaper, don't realy know if that temp is too high but can't hurt to cool it IMO.

how do i attach the fan to the nb?

Use a hot glue gun.Use the high temp glue stick. I think WalMart has it! THE FANMAN

Get a 40mm fan, and ziptie it to teh heatsink.