DO NOT plug an adaptor rated at 1.25A output into your fan. It will burn it. Initially, i also thought 1.25A means it's the maximum your device can draw from it, apparently i was wrong, or something else went wrong. I tried twice (using router adaptor, also 1A or 1.2A i think), on 2 different fans, the first time the fan simply fan very fast for few seconds and then stopped, and never spin again. I thought fan problem. Second time, i did it again on another spare fan, this time the fan come out smoke, so i know i used too much amp, which i already suspected before i even start. Burnt 2 fans for nothing but learn a valuable lesson I tried it on processor fan by the way(both of them), they are rated at 12V 300mA-500mA each if i am not wrong.

I think 500mA is fine. I wouldnt dare to try anything higher than that. Look at the sticker on your fan, see how much is it rated. Try not to exceed it. A bit is ok though i think.

This post has been edited by gzero: Jul 2 2010, 10:41 AM