at the moment it is cold outside (16c) and we have no problems (cpu is running at 56c)
3 days ago it was 21c outside and the cpu was running at 71c and the rb just disconnected
then we have to switch off power and wait for the temeprature of the cpu to go down to 65c and then it will work again
when the cpu gets to 71c it disconnects again and we have to disconnect power and wait
if you can not see that this is an cpu overheating problem then what about the other people that have the same problems
when we underclock the cpu to 600 it takes longer to heat up
we would like a answer soonest
If AP heats up, at lower Hz, to the same temperature than it means that enclosure does not dissipate heat quickly enough. Larger CPU Heatsink will not help in that regard. You need to find a way to remove the heat from the enclosure at faster rate than it is created by RB800 and radios.
If you take the RB800 and the standard case (which is made for them!) the unit cannot substain the heat created. I wanted to buy a router which would not have more load than 22% and even still in its case, the temp after 4 hours reaches 85c on the cpu - at that point I didn't want it to be damaged so removed the case and the temp dropped to its current 68c.
Like you say, the heat needs to be removed or atleast drawn away. I actually think this is a manfacturing error in the fan volts and the airflow - it needs more of both!
Like I said it would be great if MK can do some kind of add-on to the board to help with this (ideally something that can work in their indoor case!)
I've been thinking and the easiest - fastest solution would be for MK to make a new case (I understand this may not help everyone but something is better than nothing).
--- MK - if you can create a case like the Watchguard - firebox 2 (rackmountable/desktop by adding brackets), with the main's power feeding 12v power to case fans and of course power to the unit itself, the unit wouldn' need touching itself.
Please can we get a formal response and something build quickly? The last thing I or anyone needs is dead RB800's from heat - which may/may not be covered under warranty.