Yep
When you say Front......you mean the side with the Network interface? That is the Intake fan where it have the shorter cable. The rear is with the Longer fan cable is the Exhaust FAN. What is the best way to test which is FAN 1? I have my PSU connected to 3 S7, and would hate to shut them all down for a test. Heck, let me test it now as my curious is getting to me. Will do a power down and remove 1 FAN connector.
UPDATE - FAN 1 is the Intake FAN. I also took this opportunity to reboot the 3 S7 and now they all report similar FAN speed at 60%. I also used this opportunity to replace 1 FAN with the SANYO FAN. Because the replacement FAN is different it's only natural to see the RPM reported being different. The Intake fan appears identical to exhaust fan but it's hard to know for sure as there's no model #, just similar looks. The screeching is now gone so I'll do a stability test for a week and if it keeps temps good without issues, I may order another to replace the other S7 Fan.
Just a bit concerning that Amazon report this FAN using up to 3AMP or 36 Watts. Although I did hear report that people previously used these FANs on the S4 without any issues. So far it's keeping the temp at the same as before the replacement.
http://www.amazon.com/gp/product/B00QWB1X3O?psc=1&redirect=true&ref_=oh_aui_search_detailpage
Anyone know what the OEM fan uses watts wise? Bitmain site doesn't show and Ebay info is not trust worthy as those are not the OEM fans since they're showing it can only go up to 4500RPM vs 5K for the OEM version.