View Full Version : PSU Molex cable colours
14-11-2005, 11:23 AM
So I bought myself a 450W PSU on Friday. Thought I would be smart and got some of those Vantec cable sleeving kits as well. Now, being a bit doff and not planning ahead too far I forgot to take note which cable goes where on the Molex plug. Had a look at one on the other cable I hadn't worked on yet and saw that it's either Yellow-Black-Black-Red or Red-Black-Black-Yellow depending on how you hold the plug.
Now the problem I have is the two black cables in the middle. Does it really matter which one goes where as long as the Red and Yellow are in their correct positions?
14-11-2005, 11:37 AM
I think thats ground so it shouldn't matter so long as its going to gnd again. Check out these google image results for more info:
14-11-2005, 12:10 PM
Yea i had the same problem, pluged them back in the wrong way and blew my HDD and DVD-RW. ;-(
14-11-2005, 12:33 PM
The black wires dont matter - they all connect to the same spot inside the powersupply. Use your Heatshring sparingly and DONT use a lighter to shrink it. Use a hair dryer or heat blower. A Lighter/Matches leave dirty black marks on your nice new sleeving job.
14-11-2005, 12:59 PM
So just to be certain. If the correct sequence is Red-Black-Black-Yellow, the two black wires can be switched around without any problems as long as the Red and Yellow wires are in the correct place? If so then I should be fine.
@Obelix: My blow-dryer wasn't hot enough so I borrowed my Dads heat gun. I was a bit afraid in the beginning. That thing gets really hot! :) Looks cool when it's done tho. :cool:
14-11-2005, 01:36 PM
ive slleved my power supply and changed my molexes to the red 1's
make sure that the yellow wire is on the right.
so if u look at it from the top so it will be red-black-black-yellow (with the cut-off edges on the end)
15-11-2005, 12:57 PM
What also works well with heatshrink is gently rolling a soldering iron over tube (as long as your soldering iron has a cone at the end)