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Re: motherboard power connections
From my extensive experience trial and error can sometimes be the best solution here, never had any shorts with this solutution. plug the power supply onto the mboard then with a screw driver touch together two pins at a time on themboard following a the pins on the panel horizontally, when you touch together the right two pins your mboard will power-up then insert the on-off plug on those two pins 99.9% of the time they are plugged facing inwards (the writing on the plug faces towards the major part of the mboard) after that you can insert the led plugs by the same consept of trial and error. You must plug your harddriver to your board to find the hdd led because then it will flicker when found the power led will remain on constantly. with the resert button the 99.9% of the time the pins are directly below, above or adjacent to the power-on pins. when it comes to the usb pins check-
. . . . . . . . . they are in this order above if the spare pin is on the right. starting from left to right, starting with the top row insert - red - white - green - black. the same works for the bottom row.
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Download and install Leapfrog connect. If it doesn't download, there's an offline download option available. After installing it, connect your leappad ultra with the usb cable to the pc. power it on. it should get connected. If it doesn't maybe your anti virus software is blocking it. If this happens, go to your antivirus software settings and under firewall rules, select allow for leapfrog connect .exe. Then it should detect your leappad ultra. Go to left hand top corner , select My Products. Then select your leappad ultra. Then goto Settings on the right top corner and in the pop up, select Reset. It will take around 15 - 20 mins to reset it. All data will be erased.
Sounds like the board or processor has failed. You will have checked all the power connectors to the board? Usual fix is a new board, rather than trying to find which component on the board has failed.
There are actually adapters for SATA powered devices as long as you have the required SATA data cable connection to your motherboard. Click here to see an example of this item from ebay. All you would have to do is plug in the adapter into any free connection on your existing power supply and then plug in the SATA data cable both into your drive and the motherboard. There are actually SATA data cable adapters if you don't have that either, but i'll just stick to answering your question! (:
You can start the PSU manually with a paper clip.
Remove the 20 pin connector from the motherboard, leave the four pin power connectors attached to your various drives (this will provide a load on the power supply when it start up (provided it is not faulty).
Look at the 20 pin connector with the connector facing you.and the locking clip to your left.
The fourth pin from the bottom LH corner should be a green colour wire and the next two wires (5th & 6th pin) should be black and next to the locking clip.
Straighten a paper clip and insert it into the 4th pin and into the 5th or 6th pin (ie connect these wires together). These wires connect to the front panel switch to turn on your computer. You are testing the power supply only and since it is not connected to the motherboard the computer won't start.
Now connect the power unit to the mains and switch on the mains, if the power supply is OK the PSU fan should spin up and your hard disk should also spin up. If nothing happens the the PSU is faulty.
You can test the +5volts and +12volts supply on a 4 pin power connector with a multimeter. The red wire is +5volts and the yellow wire is +12volts and the black wires are negative (ground). The voltage readings should be within 5% of these voltages.
There are other voltages to be checked +3volts, -5volts, & -12volts. but these are not as critical.