Hey every body,

I posted this qeuestion in general hardware too without getting to many responces hopefully I get better here.

I have an old, i think somewere between 200-300 watt power supply unit, that powered my old PIII. I caneblized it so I could take out the 2pin, 80mm fan that was in it, and use it as a case fan. 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?

I tray the same thing on my
Asus A7V8X-X, from my old PSU i take out 2pin, 80mm fan and tray to hook it up to the 3pin CHA_fan connector on mob,and then at once my CPU_fan was barely moving some 500-RPM like it hasn`t got enough power even when I diconect old PSU-fan.
In the end I had to bay the new CPU_fan and directly hook it up to PSU.

my point is: if you don`t know what are u doing, DONT DO IT!!!

Life is the pain, get over It!!!

Hey Till,

I'm glad you posted your personal experiecnce on this matter. What was your CPU's RPMs before you hooked it up?

It sounds like Your mobo was not to happy after you connected that fan. How eles did it effect your motherboard. Was any thing fried? Did you have to replace your mobo?

I'm just curious, I don't intend on hooking it up anymore, after all I can buy a case fan for like $3.00 without putting my system at risk.

It was about 2300 RPM +/-10% at 12V,then it was oround 500rpm with only 3V power from mob.Other than that I have no problem with my mob and nothing was fried.
I also had to buy case fan for $5.00 and put it on my CPU.

Asus A7V8X-X
AthlonXP 2000+/OC 1800Mhz (9*200Fsb)1.75V
512MbPC2700
HDD 80G-Western Digital

Life is the pain, get over It!!!