1. How To add the redundant fan kit Open the chassis and disconnect the rear fan cable from Put the add on fan in the rear position and then put again the motherboard and then unplug the black fan from the the main fan with the wicket in the same order shown in this blue fan holder picture i A Y N ITAN il IIR N Ay i n vA Be sure all the two fans are securely Place the redundant fan inside the chassis and connect both cables to the lock in the holder motherboard keeping attention at the cables order Lo oa 3 oa FESS ee 5 ny z wed sone te w b y linn Y y y a eee g yt ata LAN naaie LEN r v e we A io Ki i E 7 a a 1 y _ i All the How To guides can be found on http support acer euro com documents howto SO G54FK 001 G540 redundant rear fan Contains the second non hot swap fan 46 G54FK 001