![]() I have purchased some tools, and I'm not completely useless at being handy, I've just never tried anything like this before. I wanted to get it powered before I try to tackle the HDD activity portion, but I would definitely appreciate any help there as well. I'd appreciate any help be it a suggestion, advice, or even a fully drawn out circuit with a part list (teach a man to fish, I know.). Applications: power for motherboards with single rail power from any voltage to any voltage, laptops, custom electronics with buck-boost DC-DC. Using a regulator seems to be the most reliable option, but I have no idea how to go about doing this, and what regulators (AC or DC - I assume DC) to use. I have been researching how to step down the voltage from 5v to 3v (I am assuming since 2 AAAs power it, it must run on 3v) and I have come across many confusing solutions from using resistors, diodes, transformers, and regulators. My ultimate goal is to tap into the harddrive activity LED out pin on my motherboard to activate the plasma disk to give the final impression that I can see the computer thinking.ġ) I have to convert the 2 AAA battery opperated plasma disk to run off the 5v molex leadĢ) I have to figure out how to make the HDD activity actually activate the diskģ) I have never made an electonic circuit. The power connector on the 3½-inch floppy drive, informally known as 'the Berg connector', is 2.50 mm pitch (distance from center to center of pins). I have a Cooler Master V8 cooler that I plan on adding a 3" plasma disk (the type behind the Borgs heads in Star Trek) to the top of. I am currently working on a project to customize my computer heatsink/cooler. kwchang007 New Member Joined Messages 3,962 (0.68/day) Location Severn, MD, USA. if you buy them retail (in a box, not OEM) they often have a warning sticker/pamphlet with them. Which wires do I need to align together when I connect the two molex cables (EX: yellow with red, black with black), and could re-assure me by telling me "yes that red wire on the 4 way splitter carries 12 volts.Hello everyone, this is my first post here, and I appreciate you taking the time to read this. WD are the only ones with both connectors, and they will either not power on until you remove one, or they will just die and never power on again. Does the yellow wire on the second picture molex cable connect to the red wire on the 4 way splitter, and can the 4 way splitter even carry 12 volts? I assume so since it is made for CPU fans, which are all mostly 12 Volt. Since I wanted to hook up the female molex connector (the isolated connector on the 4 way splitter) to the molex cable in the second picture, I have no clue which wire goes where. On the contrary, in the 4 way splitter, the red wire is unknown (12 Volt or 5 VOLT?) and the yellow wire is the fan speed control wire. I looked up and saw that on the second picture, the yellow wire is the 12 Volt wire while the red wire is the 5V wire. I wanted to connect the top female molex connector to a male molex connector as you can see here: ![]() Voltage, electric potential difference, electric pressure or electric. I was going to use this item to hook up all the fans into one input connector, but I quickly got stumped on something very small. The power connector itself is a Molex 8981 connector called the AMP MATE-N-LOK. ![]() I Have 2-Pin 12 Volt Small Fans (4 of them) that I would like to use for a little project of mine. ![]() ![]() Thank you for taking the time to read my question. ![]()
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