Update!
electronics Master Control Board test
This is the heart of a DELL XPS 730 case, the Master Control Board (MCB). Has like double the size of an Apple iphone. This unit controls all the case LEDs, 3 ventilation fans, LED indicators and the power button. It's connected to the motherboard via the PWR BTN, HDD LED, PWR LED and USB plugs for the digital control.
This board needs also a power connection and as always DELL has made some kind of own plug for it.
Luckily it shares the same plug pattern a standard ATX motherboard power plug. Also it shares one special wire from the ATX power plug, that no other plug on a normal PSU has. So the best way to make an adapter for it was to create Y-wires from the ATX extension, since it has every voltage order it needs.
Of course it needs to be trimmed.
So we got ourselves some cable. (this is 100 meters of cables... and needed like 10-14 meters for my needs :P )
I needed all those pins to be taken out of the ATX power extension and 10 more.
Y-cables like these had to be created.
Took me all day...
But I wasn't even finished.
The open wire spots had to be covered up. So shrink hose and cable sleeving did the job.
Unfortunately I didn't have enough sleeve length to cover all 34 cables up. I'll finish the job when I've ordered some more.
The finished MCB power plug.
Making everything ready for a first rough functionality test. This is the original XPS 720 front panel and power button upside down.
First test results were positive, everything worked just fine! :)
Then I tested one of the LED units. Glowing in 100% RGB (white) - default setting when no color tone has been set yet.
Now I have to finish the restly cable stuff like the LED indicators, main LEDs and sleeving of course, to cover up the not so nice spots on the cables. :)