to be set and linked to other parts in specific manner otherwise the span class news dt 26 09 2010 span nbsp 0183 32 pinout of dell optiplex power supply connectorpower supply model hp 150ss ps 5231 the plug is an atx 20 pin plug but it s in patible with atx standards different pinout no 3 3v p div class b factrow b twofr div class b vlist2col ul li div class b sritem b srtxtstarcolor 2 5 5 span class csrc sc rc1 role img aria label star rating 2 5 out of 5 data tag item customratingitem span class sw st span span class sw st span span class sw sth span span class sw ste span span class sw ste span span div class b sritemp 2 div div li ul ul ul div div div li match the cabling on your power supply s motherboard connector to the diagrams to determine what type you have some dell supplies are wired like the dell diagram others are standard atx so it s worth a quick check dell does not.
publish specs for wiring its always been proprietary and undocumented any wiring diagrams posted on the web are from users not dell i need electronics circuit diagram for power supply used on dell xps generation 3 4 and 5 power supply model nps 460bb manufacturer of power supply unit newton power ltd so the ds2501 in the dell ac power adapter contains the identification info of the power adapter the dell laptop reads the identification info during startup of when it s connected while started power for the memory device es from the laptop which is the same ac adapter identification wire indicated as a parasite power circuit this is a conceptual circuit diagram of the power train of a typical atx puter power supply unit this schematic does not show the control circuitry that s why you see all mosfet gates and transistor bases are open for clarity the parts responsible for miscellaneous.
auxiliary functions such as current limit fan control and ov