Hi Guys, I want to make a 6 pin PCIe cable to run from a modular Silverstone Strider ST1000's x 2 quad PCIe 6 pin connectors straight to the two 6 pin PCIe connectors on a Radeon 6870. I know the top row are yellow and the bottom row are ground (depending on which way up), do the cables crossover pins at all? I.e. Unlike an extension, which runs pin to pin i.e. has no crossover of pins - do I need to be aware of for example a yellow or black cable coming from say pin 1 on the the PSU side and into pin 2 on the Graphics? Or do I look at this as a simple exercise in pin to pin connectivity? Also, depending on which logic is right or wrong, it would be nice to understand better the pin configuration for say 8 pin PCIe to 6+2 PCIe...but for now all I want to know is how to wire up a modded straight 6 pin to 6 pin PCIe cable. Kind regards, Adrian
Making modular cables can be a very different exercise to making extension cables. The issue being is there's no set industry standard for the terminal layout on the psu's end. Therefore it's next to impossible to say for sure with out having the psu + cable handy to check. The safest way to build modular cables is to have one handy as a guide. Take the 6 or 6+2pin modular cable that came with your psu, strip of any sleeving that came pre-installed and have a look at how each wire is housed in there corresponding connectors.
I'd use a multimeter to electrically check for 12v and ground coming from each of the pinouts on the PSU and design my wiring based on that. Once I'd wired it all up I'd recheck the voltage on the free end before plugging it into my graphics card though. If you don't have a multimeter then get one or if you must make something that can tell you which pin is 12v and which is 0v. A led with a 470ohm resistor attached would work but it is not as faultless as a multimeter. Any of the 12v wires can go to any 12v on the PCI-E connector and the same goes for the grounds.
For the Pci-e cables you don't have to worry as there are just 12v and ground. To make female - Female cables like those in silverstone cables you connect pin 1 to pin 1.
Noobie Hey guys I am new to cable modding the closest I've done is replacing the LEDs on my case fans but i also need a 6 Pin to 6 Pin cause I lost one of my two modular cables, don't know how i managed it but when i got my new graphics card it just wasn't in the box . I'm having to use a 2 molex to 6 Pin cable which just looks ugly so more to the point will i have to make the cable from scratch or can i just buy an extension cable and put a male 6 Pin plug on it? and will the female socket on the PSU be the same as the connection to the graphics card or should i get a multimeter like Tealc says? I think i know what colours go where. Diagram. ________ |1Y|2N|3Y| |4B|5R|6B| Y=Yellow N=Nothing B=Black This is the extension I'm after http://www.specialtech.co.uk/spshop/customer/product.php?productid=13167 R=Red I really dont wanna have to make one from scratch and have too sleeve it an all any help would be much appreciative. Thanks
6 pin pci-e connectors dont have Red wires or missing pins. They should be three yellow and three black for 12v and ground respectively. You'd expect modular pin outs on a PSU to be logical but I wouldn't assume such. Verify your existing lead's wiring and which wires go where before hooking up the extension. It's not hard to do and you don't actually need a multimeter as you can verify continuity of a lead with a 3V lithium battery, a paperclip and an LED, although the multimeter method is easier. If you don't have a multimeter then get one, they are super useful.
In this circumstance you'll have to make a cable either from scratch or modify an off the shelf cable by cutting off the existing male terminal and crimping on a new female. Preferably for you is to find a 6pin extension cable with 2x female connectors, then rehouse the terminals to suit, unfortunately such cables aren't easy to come by. Male and female minifit-Jr crimp terminals and their corresponding connectors are not interchangeable, you can't install a female terminal into a male plug and vice versa. Even if you some how managed to force it to happen the female terminal is designed to sit ontop of the male terminal, trying to connect 2x male terminals together isn't going to work.
