Hi Justaboo
Ok i did my test
The box started of at 87 with no fan...I put the fan on and it went down to 53 in a couple of mins (it's a largish fan so more powerful than any laptop or internal fan)
I set off 3 recordings for 30 minutes and the box rose from 53 to 59 and a couple of times it went to 60..after 30 mins i set off another 2 recordings (hd this time) for another 30 mins, so i had 5 recordings running at the same time and the box never got over 61, majority of the time was at 60. Stopped recordings and took fan off and temp is steadily rising
So to clarify had a 1 hour of recordings, 3 for the 1st 30 mins and 5 for the next 30 mins) temp stayed constant and no reboots