Ok aside sh*ting on Bitmain which I understand. I played around with some compressed PVC panels and results are pretty good. Fan on front is Delta TFC1212 5500 rpm.
And with this setup it does not matter if internet connection is lost or pool is not working there is no chance to burn anything...
Easier to just remove the PWM line on the stock fan (I prefer to pull the connector out of the plug then electrical tape it, some folks might prefer to just cut it as that's easier), then it runs at 100% all the time for best cooling.
Not all the time some fans will stop spinning if you remove that PWM wire. and others will spin 100% RPM it depends on the fans controller chip built into the fan. so like I said it depends on what fan.
I had both fans wired directly to the PSU "both S5 original fans" then I remove the internet connection
and I was still able to view my miner status page. The temp shot up well above 80c "90 to be exact" with both fans still running at 100% RPM. I manually shut down the PSU because if I let it continue it would have burnt up. so your idea will not work on some of them I know mine it did not. But nice idea though.
Did you simulate the problem when you modified it to see if it really works and does not burn up ?
the bold part there says you are lying...
on the S5, when you disconnect the internet.. the cgminer stops working.. there for the status page is stuck on the last status..
even sshing into the s5 and typing screen -r doesnt get you an update on the temps.
it just shows cgminer saying over and over the pool is down.
if both fans were at 100% like you say, and you had no internet like you say, then you should have no problems with the temps..
now on my s5, when i lost internet.. the fan DID STOP SPINNING..
also cgminer jammed up.. just like i said..
i put my finger on the heatsink and felt it to be very hot..
using an infrared temp gun, it was well above 100c..
it was NOT cgminer that showed the temps.. i think this is why the machine doesnt shut down.. because as far as it cares, its still 54c.
anyway, your posts are becoming very annoying..
? I don't want to buy one and see him die the first day !
! 
