@barnun posted:Hokie71,
From what limited number I've seen, the 4 pin square plug is most likely +12v (x2) & Grd (x2). The 6 pin I've not ran across. Have you considered just putting a volt meter on it? Also, not sayin' they don't exist, but I'd be very surprised if you can find a prefabricated breakout board for your Dell supply. Hope this helps.
bd
Thanks all, great link on the pinouts too. I plugged the dell supply in and tested this morning and as barnun suggested the 4 pin is 12v x2. the 6 pin is 12 volts x2 and a 5 volt. I do plan to recycle these two old computers (less hard drives) at either staples or best buy this week. Looks like I will use the 20/ 24 pin supply which came from the HP computer and give the Dell away if anyone wants to pay for shipping on the for sale forum.