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What type of cable for PC power cabling?

post #1 of 34
Thread Starter 
I've started to mod my case a little but i'm struggling to find the right type of wire for things like the sata and molex connectors. I will probably buy a pack of sata connectors like this but i need the right wire to go with it I assume. I went to my local electrical shop but they were pretty useless tongue.gif

I dont want to buy any pre-sleeved cables as id like to do it all myself just for general experience and to tailor it to my pc case and how id like it. I've seen quite a few sleeving tutorial but they either sleeve existing wires or just dont say the exact type of wire.

Thank you for the help smile.gif
post #2 of 34
I'm going to take a guess and say 18AWG. Haven't wired done my own but looked into it a while back.
post #3 of 34
Thread Starter 
Well i've seen lots of things like 18AWG or 22AWG but never anything definitive. I assume single core wire would be useless as it dosent have the flex a "multi-core" would if thats even what its called (not very knowledgeable on wires).
post #4 of 34
18awg stranded tinned copper

Pretty standard stuff. It's also known as hook-up wire. Auto parts stores, Lowes, Radioshack, etc... would all have what you needed.
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post #5 of 34
I believe 18awg is standard psu wiring. I know you won't have a problem using it.
Quote:
Originally Posted by Atomoxic View Post

if thats even what its called (not very knowledgeable on wires).
Stranded verses solid thumb.gif. You want to be using stranded because of the flexibility.
    
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post #6 of 34
Thread Starter 
Ok thank you. I did some searching around ebay and found this. From the pictures the size of the cable looks pretty similar to whats in the comp atm.

Could be a stupid question but is the 17amp rating ok to run my PCI-E connectors off?
post #7 of 34
Quote:
Originally Posted by Atomoxic View Post

Ok thank you. I did some searching around ebay and found this. From the pictures the size of the cable looks pretty similar to whats in the comp atm.
Could be a stupid question but is the 17amp rating ok to run my PCI-E connectors off?

The wires you linked are 3mm outside diameter. This is far too big. If you are going to sleeve and/or crimp your own wires you need to look for 2.0mm or 2.2mm outer diameter, with inner core 0.75 mm2. Since you linked ebay UK, I link a UK vendor of 2mm wire. http://www2.conrad-uk.com/goto.php?artikel=602851

Regarding maximum current. The ATX specification was very safe when it designed those wires and connectors. I recently read a discussion about this. It turned out, for example, that the PCIe 6-pin wires only need to carry about 2 amps, while the PCIe 8-pin live wires carry maximum just over 4 amps.
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post #8 of 34
Thread Starter 
A big help thank you. And i assume the same wire will be fine for making some sata rails out of these things?
450
post #9 of 34
Yes, the same 18 AWG wire should be used throughout your PSU. Some manufacturers seem to skimp on this, though (usually on a wire or 2 on the 24 pin from what I've read).
post #10 of 34
Thread Starter 
Great thank you. Ill order the parts and get on with my mod smile.gif
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