Help please! Sata slot originally not welded to a sata connector on mobo

Hello,
on the motherboard of my Acer L100 I have only 1 sata connector where the unique hard drive is connected but next to it there is a place that is very similar to it and look like a second sata slot that the 7 pins have been left as 7 dots of weld with 2 others bigger that can be for fixating or ground.
Watch it with a green arrow that design it :
http://i456.photobucket.com/albums/qq286/yamsala/slotSataNonSoude_fleche.jpg

There is about the same thing next to the unique sata power slot where there is 5 dots of weld that look like a second sata power slot that have not been welded to any connector :
http://i456.photobucket.com/albums/qq286/yamsala/slotAlimSataNonSoude_fleche.jpg

On the diagram of the motherboard in the sata controller there is the inscription "sata II conn *2" that maybe indicate that there is a second sata slot :
http://i456.photobucket.com/albums/qq286/yamsala/AcerAspireL100_C51S01MainboardschematicASL100.png

My question is :
Is this little site that look like a second sata slot is a real sata slot and functional with whom we can re-weld every corresponding 7 pins to a sata connector and connect it to a second hard drive ?
In an other way : Is the sata chipset controller of this mother board can control this presumed second sata ports ?

Thank you for your help.

 

It would be hard to say. If the connector was left out, they might have also left out small caps or resistors along the trace path. That means even if you were to install a connector yourself, it wouldnt have a complete connection between the drive and chipset.

 

Try this website http://forum.desktopreview.com. If the 2nd SATA connector is not installed on the motherboard it was probably not added for a reason. It could be missing more than just the plug, additional parts on the motherboard as well.

 

Thank you for your help.

If the sata connector was left out it can be because it's a mini PC and there is no place inside for a second hard drive (I use this mini PC opened with the hard drive outside) so the guys of Acer wanted to save money on not soldering to it a connector because they thought nobody would want to ad it a second sata hard drive....

An other idea I have is that if there is a missing of additional parts on the motherboard to control this supposed second sata port, if I connect to it a second hard drive, his electrical or physical connection to the controller will be probably simply not established without any other effect so I can even try, I think the risk is moderated.
If you are one of the builders of a motherboard and you put on it a sata controller that control only one sata port and you put on it a second sata slot, toward what in the motherboard do you put the connections of this slot ? It is logical to think that those connections are simply cut with the motherboard, that mean that if you connect to it the thing that is supposed to be connected when this sata slot is activated it just happen nothing.

Do you really think a motherboard can be damaged because a sata hard drive is connected to a sata slot not activated or not functional ?

For this try I will use an external good power connector for the hard drive and of course be absolutely precautional on soldering the sata connector.

 

No, the possibility of damage would happen when you try to solder the SATA connection to the board; if the slot is not activated or functional because there are no lines to the SATA controller, then it won't matter. Now if there are lines, and the fact that there's now an extra device on the motherboard confuses the BIOS to the point where it won't POST, that's something else, but I doubt there would be actual damage just because of that.

 

Did anyone try to add the connector?