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385 Posts
in the past used old IBM/HP/Compaq computer power supplys to drive windsheild motors. they had a hard switch wired from the case to the power supply to turn on and off. In some cases 386 computers even had a hard rod that push a button inside the power supply No problem. Grabbed a few "newer" old Emachines computers and noticed that their aint no stink'n hard switch but all the wires now runs into the mother board and the case switch runs into the motherboard too. Plus "shut down" turns off the power supply without a physical button push. So when the power supply is hookedup correctly to the motherboard, it powers up. Remove it and attached to prop... just sits there and keeps the prop from falling over. (dead weight)
So I'm thinking that one of the wires that goes to the motherboard acts like some type of trigger to a relay in the powersupply? [email protected]#$%, just when i thought things would be cheap and easy, i find myself looking at adds for Battery chargers! [email protected]##$%.
HELP! How do I turn this thing on?
View attachment 6912
.....please....
So I'm thinking that one of the wires that goes to the motherboard acts like some type of trigger to a relay in the powersupply? [email protected]#$%, just when i thought things would be cheap and easy, i find myself looking at adds for Battery chargers! [email protected]##$%.
HELP! How do I turn this thing on?
View attachment 6912
.....please....