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‎07-05-2019 04:53 PM

HP Recommended
Product: Envy 700
Operating System: Microsoft Windows 10 (64-bit)

PC fails to power up.  Thought it might be the power supply and purchased an ATX450 supply.  No change.  Tested the power connection button to the mother board F-panel connector pins 3&4 black wires with OHM meter and button works.   Believe the motherboard is not signaling the power supply to power on.   Tested the original power supply main connector by shorting pin15 common and pin 16 PS-on# and the fan runs on  power supply.      Measured voltage only 3v.    Did same on new power supply and it has 5v and 12v.   But needs the connection pin 16 to common to keep the power supply going.    Haven’t tried forcing the PS -on connection to common while connected to motherboard yet.     Bottom line is the question :  what is between the power button front panel and the power supply turn on control?     Has anybody experienced this?

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