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Wire Length? Can I add?

post #1 of 10
Thread Starter 
Is it ok to cut wires say fan/psu (not sata) to get them longer? how to reconnect? double skidded crimps?
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post #2 of 10
Quote:
Originally Posted by dwmcfall View Post
Is it ok to cut wires say fan/psu (not sata) to get them longer? how to reconnect? double skidded crimps?
Maybe for a fan, definitely wouldn't recommend it for a psu. Just google the type of extender you need, they make extenders for pretty much every psu connector.
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post #3 of 10
Crimps?... what is this the middle ages?

Jokes aside, Always solder and shrink-wrap.
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post #4 of 10
Soldering together is always the best.

What cables exactly?
    
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post #5 of 10
Thread Starter 
well I am not sure, but I am starting from scratch with new everything and am trying to put together all the parts i need in advance. I am sure I am going to run into a couple things where there will not be enough cable to run it like I would prefer.
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post #6 of 10
Unless you have the proper tools, I would not recommend modifying SATA, IDE, or USB data cables since they require certain types of cable and/or are a pain to work with (e.g. USB uses shielded cable and IE is 40 pins).

Other than that just about all the power and signal lines (e.g. power switch, fan wires) can be extended/shortened without any trouble. The only exception is in the case of CCFL lighting; I do not recommend modifying the AC wiring from the inverter to the lamp(s) since this more often than not degrades the performance.

For any wiring modifications, I recommend soldering and covering the solder joints with heatshrink tubing to prevent shorts; I would advise against crimp butt splices since they are bulky and not as reliable as soldering since wires can often be pulled out of the crimp connector (especially if the wrong size connector is used). When extending wires, be sure that the piece you're splicing in is at least the same gauge as wire being extended.

If you do not feel comfortable with soldering, then your best bet would be to simply purchase readily available extensions.

The other thing to note is that modifying the wiring of the PSU itself will often void it's warranty.
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post #7 of 10
I had to extend the SATA and Molex cables because of how i was going to route them

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post #8 of 10
I have to extend the psu cables in my case.
The first PSU I put in the case. I got an old PSU and chopped the wires off close to the PSU, then I chopped the plugs off the new PSU and grafted the longer wires on. Don't forget to slide the heatshrink over the cables before soldering them together;-) Stick the stripped wires end into each other, then twist them together while holding the wires inline[not explained very well?]. This worked fine.

Next upgrade needed another PSU, this time I got some new molex sockets[RS stock them] and after chopping the wires off the old psu I added the molex sockets. All I have to do now when I change PSU is plug it in.

I have extended USB sockets with patch cable, I ran benchmark software and the USBs seem to work flawlessly. The USBs in question have been in regular use since oct 2008. But they are not very neat looking.

Everyone is saying Crimps! NO. That's my thought on it as well. But soldering isn't allowed on planes as solder wire snap, if you wire a bike or car you will come across the same problem sometimes, if you soldered connection. Crimping seems to be the way to go, but they don't use crappy insulated crimps[if I had a car with electrical problems to repair and spotted crimps or scotch clips that was invariably the fault] I have a machine to wire and have bought un-insulated crimps and tooling, but the wire I have done so far I also soldered them!
Edited by integerspin - 5/23/11 at 9:01pm
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post #9 of 10
i extended my previous PSU wires of the 4-pin ATX cable myself...without even soldering and shrink..just cut the wire, insert a same wire which i cut from an old molex connector or PSU and just attached the 2 sides together and tied with duct tape...will probably solder it soon though for 100% safety..
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post #10 of 10
Quote:
Originally Posted by Heartl3ss View Post
i extended my previous PSU wires of the 4-pin ATX cable myself...without even soldering and shrink..just cut the wire, insert a same wire which i cut from an old molex connector or PSU and just attached the 2 sides together and tied with duct tape...will probably solder it soon though for 100% safety..
This practice is not recommended for a number of reasons and should be reserved as an emergency fix and done correctly as soon as possible.
First and foremost, Just twisting the wires together does not provide a good connection and can often result in a point of higher resistivity, which can easily overheat when subjected to high current loads. Soldering, or good crimp terminals/splices are the way to go; I also like the splices with a blade that cuts through the insulation jacket to make contact with the conductors, where you simply insert the wire and compress it with pliers to make the connection.
Second, some brands of duct tape (and I'm not referring to the aluminum tape) can be semi-conductive, which could result in electrical problems. Electrical tape is designed to be non-conductive and is a better choice if you have to tape or don't have heatshrink available.
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