Hey every body, I have an old, i think somewere between 200-300 watt power supply unit, that powered my old PIII. I took out the 2pin, 80mm fan that was in it, and I was wondering if I could hook it up to the 3pin PWR connector on my i865pe-A motherbord? This fan is a standard 12 dc12v fan (same a the rest in my case) but only has two wires According to my MB manuel the thrid pin on the mobo's connector is a "SENSE" pin (I assume to monitor the RPM's) which this PSU fan does not have. ________________________________________ | pin | Signal Name | function |_______________________________________ | 1 | GND | System Ground |_______________________________________ | 2 | +12v | Power +12v |_______________________________________ | 3 | Sence | Sense |_______________________________________ All the female connector plugs in my case read "2510" on the bottom and some funky three letter acronym with an arrow on top indicating how to insert in the motherboard. The PSU's fan female conector plug reads "5051" on the bottom? So before I connect this to My motherboard I want to my sure I wont Fry anything. BTW: The only free slot left on the mobo(for the fan) is the PWRFAN1 slot under the CPU one. What to you guys think? All I have to do is plug an play ground to ground and +12v to +12v could any thing go wrong even if I missmatch plugs in the wrong connector? We only buy hardware to run software on it.

Yea its fine. I prefer to connect case fans directly to a psu molex connector and not to the mobo itself. If the fan siezes , the overload could damage the mobo. They make adapters and splitters to add fans .

I think you misunderstood my question, this fan does not have a molex connector, its striaght from my old power sluppy unit. I canablized it so I could use the fan, and connect it to my motherboard to use as a case fan. My origanal question was if I could in fact connect it to My mobo being as it does not have three pin holes to connect the three pins on the mobo it only has two?