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Changing molex to floppy

Last response: in Components
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July 28, 2009 8:21:31 PM

Hi guys,

I've got a SFF pc with a notebook DVD drive - it needs a floppy header to power it. The power supply I have for it has one more molex header than I need, and I have an old unused ATX power supply with a floppy header. I noticed that they basically use the same wires in the same configuration but with different pins, so would it be possible to take the floppy header from the old ATX power supply and use it to replace the spare molex header on the SFF power supply without cutting/soldering wires?

Thanks in advance for your help,
BrutalSpoon

More about : changing molex floppy

July 28, 2009 8:36:18 PM

fpsdominator said:
well i woulnt recommend putting the connector onto a molex cable...
Instead buy an adaptor like the one in the link.

http://www.xpcgear.com/floppy4pin.html


Thanks for that, although could you explain why it's not a good idea? Just so that I know for future reference.
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July 30, 2009 3:56:55 AM

brutalspoon said:
Thanks for that, although could you explain why it's not a good idea? Just so that I know for future reference.

The main reason is your risking shorting out the power supply and other stuff. i dont think its worth all the risks.
July 30, 2009 11:52:12 AM

fpsdominator said:
The main reason is your risking shorting out the power supply and other stuff. i dont think its worth all the risks.


Alright, thanks for that. I'll find myself an adapter like the one fpsdominator suggested. Thanks for all your help, everyone!
a b ) Power supply
July 31, 2009 1:21:45 PM

What you propose is quite reasonable, and you're right - floppy drives use exactly the same voltage supply lines as larger devices fed by Molex. There are two things to watch out for, though. First, how are your soldering skills? If you can't do the job well then fpsdominator has reason for caution. The other is wire size - the wires on a Molex are usually heavier, so there are both weight problems and size / ability to fit in considerations in putting a floppy connector on the end of 4 wires in place of a Molex.

The adapter from Molex to Floppy is an easy solution, and you should be able to find one at computer parts shops.
!