mobo fan pins on fubar compaq

[diroga]

after wasting an hour with online chat support i come to you O knowledgeable people. below is the pin configeration on my mobo for a fan. it is not the normal modern day 3 pin next to eachother with a plastic backing. it is just 4 pin spots in a row with three pins sticking out.

1 2 3
[pin][blank][pin][pin]

my question is what are the pins? this is what i think

1 = speed control
2 = positive
3 = negitive/ground

what do you think? i'm trying to rig up a fan for that wierd pin config.

 

[Praetor]

1. You can prolly verify with a DMM although i think you are correct
2. What motherboard are you talking about?
3. Does the plastic connector thingy look like a floppy power connect?