excaliburlives Posted November 30, 2019 Report Share Posted November 30, 2019 Hello, i'm trying to finish up this Millennium Falcon mod i'm working on. I soldered a wire to the #39 pin to the negative leg of my led and the other leg of my led to the 12v and the 5v wires on my molex connector and light comes on but never blinks. It just stays on constant What am i doing wrong? Quote Link to comment Share on other sites More sharing options...
Benur75 Posted November 30, 2019 Report Share Posted November 30, 2019 I have done the same, and my blue 5v led is nearly always shining. Do you use a sata to ide adapter ? bye Quote Link to comment Share on other sites More sharing options...
KaosEngineer Posted November 30, 2019 Report Share Posted November 30, 2019 The nice thing about using a DeLock 61702 IDE-to-SATA adapter. It has a 2-pin header to connect a hard drive activity LED. Quote Link to comment Share on other sites More sharing options...
KaosEngineer Posted November 30, 2019 Report Share Posted November 30, 2019 15 hours ago, excaliburlives said: Hello, i'm trying to finish up this Millennium Falcon mod i'm working on. I soldered a wire to the #39 pin to the negative leg of my led and the other leg of my led to the 12v and the 5v wires on my molex connector and light comes on but never blinks. It just stays on constant What am i doing wrong? You would not connect the LED's anode to both the 12V and 5V lines. You'd be shorting the PSU's 12Vdc and 5V output levels. Only 1, 5Vdc or 12Vdc, is needed and a properly sized current limiting resistor. Quote Link to comment Share on other sites More sharing options...
excaliburlives Posted November 30, 2019 Author Report Share Posted November 30, 2019 (edited) I didn’t have it plugged in at the same time. 1st the 5v and then the 12v, same results. I tried my 1tb Sata drive and when it didn’t blink I tried the stock ide drive. Still no flashing, just a steady light. Are you guys saying I should tap into the ide/sata adapter? Edited November 30, 2019 by excaliburlives Quote Link to comment Share on other sites More sharing options...
excaliburlives Posted December 1, 2019 Author Report Share Posted December 1, 2019 Do i need a special LED? Quote Link to comment Share on other sites More sharing options...
KaosEngineer Posted December 1, 2019 Report Share Posted December 1, 2019 Do you have a current limiting resistor in series with the LED? LED IDE connector / / pin 39 -------------|◄-------/\/\/\--------- +5Vdc k a 220 Ohm k = LED cathode short lead / flat side of the lens casing a = LED anode longer lead (more positive voltage side) Quote Link to comment Share on other sites More sharing options...
excaliburlives Posted December 1, 2019 Author Report Share Posted December 1, 2019 Yes, that’s how I have it setup. Quote Link to comment Share on other sites More sharing options...
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