Which fan do u recommend for replacement for cooling S5. Original one has broken down.
I personally like these: http://www.amazon.com/gp/product/B00HQ18UDA?psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00
What's difference between Delta TFC1212DE-PWM 120mm x 120mm x 38mm and Delta PFC1212DE-PWM ?
Difference is in Amp's. TFC has 3,9A and PFC has 4,8A.
I connect TFC, beacuse I have made a mistake when ordering. Next fan is working OK, but temperature raises till 80°C and then shutdown. RPM was 0. Then I reboot S5. Now I have RPM displayed but miner is not working ( see picture below ).

Is it dead ? Any solutions ?
Shut it off let it set for at least one hour reset to factory defaults . use the right fan . one works with it one won't i think the TFC1212DE-PWM won't the controller is not powerful enough to power it but there is any other way to use that fan with PWM .
http://www.ebay.com/itm/181694032917?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT but has to powered off the PSU . the Delta PFC1212DE-PWM may not either off the controller . i use these on my s5
http://www.amazon.com/gp/product/B004Y1HLA8?psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00 with the S5 controller and the speed thing im testing out on some old script miners for fun .
This is why niether may not work with the S5 controller. TFC has 3,9A and PFC has 4,8A. you hit it on the nose .