Splicing a PCIE cable

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have an naxt hale82 550w modular psu, the pcie cable is setup as such
psu first 6 pin second 6 pin
[][][][]_______[][][]________[][][]
[][][][]-----------[][][]-------------[][][]

wondering if i can safely splice it such that the second connector is wired in between the psu connector and the first 6 pin? i'm running a sapphire radeon 7870 ghz oc edition. i think this is fine, but anybody who's done a similar splicing or definitively knows, please let me know, thanks guy.
 
Solution
nukemaster
Well think of it this way. at the power supply the wire coming out(from the modular connector) has to provide upto 150 watts(at 12 volts) to power 2 x 6 pin's so splitting it from the start does not change that limit(technically shorter the better).

Now it also seems you have flat cables(newegg images), you may be able to just pull the second connector back flat and the back forward to the card and still keep things clean if you have any worries.
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nukemaster

nukemaster

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Nov 23, 2004
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It sounds like you just want to move one connector. I do not see why it would not work. The same power is running.

Can you give more detail.

So you want it to look like a Y cable with the PSU and 2 PCI-E cables. As long as your connections are secure it should not cause an issue, but it is very warranty voiding.
 
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the warranty was voided the day i got it haha, and yes, essentially instead of the second one coming from the first connector, i just want to have a Y connector from the psu to both 6 pins, just wanted to make sure from someone more knowledgeable than i haha, a good solder job should do it?
 
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nukemaster

nukemaster

Titan
Nov 23, 2004
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Well think of it this way. at the power supply the wire coming out(from the modular connector) has to provide upto 150 watts(at 12 volts) to power 2 x 6 pin's so splitting it from the start does not change that limit(technically shorter the better).

Now it also seems you have flat cables(newegg images), you may be able to just pull the second connector back flat and the back forward to the card and still keep things clean if you have any worries.
 
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Solution
nukemaster

nukemaster

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Nov 23, 2004
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Any time.

Remember to mark off any wires you are cutting and soldering to avoid a short or sending power the wrong part of the plug(things do not like reverse polarity and that it self would most likely short since everything in the computer shares the same ground[negative]).
 
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if you don't mind, could you explain that a little further? i shouldn't have to worry about shorts if it's not plugged in right?
 
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nukemaster

nukemaster

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Nov 23, 2004
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Correct. I had a mistype in my last message "mark" off(or label) wires :)

I am just ensuing that you label all wires before working.

The PCI-E has ground and 12 volts. If you happened to mix them up, nothing bad would happen until you connected it to a video card. Since the video card no doubt has a path to ground via the slot having things backwards would cause a short and again, most electronics do not like reverse voltage.

Many devices with external power supplies have protection against this kind of thing, but I do not think a computer will(the power supply will shut off in any short, but some damage could be done to traces on a board).

My message was just one of caution when modding.
 
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ahh ok, got it, last question then, while doing my cpu 8 pin connector i didn't put the same cables back in the same pin location, although i inspected it and made sure all wires were identical, chances this could be a problem? all wires run the same path from psu end to cpu end, but chances this could be a problem? i tried looking around online, couldn't seem to find a definitive answer and you certainly seem to know what you're talking about, cheers
 
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nukemaster

nukemaster

Titan
Nov 23, 2004
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Yes it should.

A short from green to black in the ATX connector can start the power supply(do not leave hardware connected, just maybe a hard drive and some fans to give the power supply a slight load as some shut off when too little load is applied).

At this point you can use a multi meter to conform all your connections as well.

No worry about extra posts :)
 
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