Help with Cougar GX-S PSU

blu3shad0w · 12 Mar 2017 at 01:13

Hi

My Son has just bought a Cougar GX-6 PSU but it wont connect onto the motherboard.

The motherboard is ASUS Prime Z270-P

Had a look at the 8 PIN - 4+4 and it not matching what is on the mother board.

On the 8 sockets there is an arrangement of Square and like D bottom connectors, 8 in total.

For the following S= Square connector D = the D bottom shaped connectors

On the motherboard and the manual it has the following arrangement

DSSD
SDDS

On the PSU it has the following arrangement.

[DS][DD]
[SD][DD]

(Note the [] denotes the separation of the two 4 pin cables that make up the 8 pins

Is there a problem with the cable on the motherboard or was the wrong PSU ordered?

I have tried looking at the arrangement for the Cougar website or the manual but it does not show it.

Will the D shape fit into a S shape with out any problems, or is the one of the cables on the power supply configured wrong.

Don't just want to force the cable in case it damages the motherboard or the PSU cable.

Please can you advise.

cheers

Blue

mattyfez · 12 Mar 2017 at 11:56

Don't force them, something will go pop and damaged.

The plugs and sockets are industry standard, so it's highly unlikely the cable is wrong, are you 100% sure you're not trying to plug one of them in upside down?

Are you sure you're not trying to plug a graphics card power cable into the motherboard?

jjwf · 12 Mar 2017 at 13:12

mattyfez said:
Don't force them, something will go pop and damaged.

The plugs and sockets are industry standard, so it's highly unlikely the cable is wrong, are you 100% sure you're not trying to plug one of them in upside down?

Are you sure you're not trying to plug a graphics card power cable into the motherboard?

I would say that he's trying to plug a gc cable into the motherboard.

lee32uk · 12 Mar 2017 at 14:33

jjwf said:
I would say that he's trying to plug a gc cable into the motherboard.

A GPU cable is usually 6 + 2 though not 4 + 4.

mattyfez · 12 Mar 2017 at 14:48

Op could you post a pic of the plug and of the socket? The socket on the motherboard will be a standard socket, and so should the plug be, but a picture tells a thousand words, as they say.

jjwf · 12 Mar 2017 at 15:40

lee32uk said:
A GPU cable is usually 6 + 2 though not 4 + 4.

Yes they are, I once received a psu with a 4 + 4 instead of a 6 + 2.

blu3shad0w · 12 Mar 2017 at 19:16

Hi

Found this.

4+4 Pin +12 Volt Power Cable Connector

Motherboards can come with either a 4 pin 12 volt connector or an 8 pin 12 volt connector. Many power supplies come with a 4+4 pin 12 volt cable which is compatible with both 4 and 8 pin motherboards. A 4+4 power cable has two separate 4 pin pieces. If you plug the two pieces of a 4+4 power cable together then you have a 8 pin power cable which can be plugged into an 8 pin 12 volt connector. If you leave the two pieces separate then you can plug one of the 4 pin pieces into a 4 pin 12 volt connector and leave the other 4 pin piece unplugged.

If you look carefully at the image above then you can see the polarization of the pins which prevents you from plugging the cable in improperly. Some of the pins are square and some of them have rounded off corners. The motherboard connectors have matching square and rounded off corners to prevent the cable from being plugged in the wrong way. But if you look really carefully at the right half of this particular cable and then look at the 8 pin 12 volt cable pictured above you'll notice that they don't match. A regular 8 pin cable has four square pins and four rounded ones but the 4+4 cable shown above has two square pins and 6 rounded ones. The left half of the 4+4 matches the left half of an 8 pin cable but the right half is different. Hmmmm... And this isn't some bizarre cable either. I've seen plenty of 4+4s which look like this one. And then there are other 4+4 cables which look just like an 8 pin cable split in two (which makes sense). Since rounded pins fit into square holes in motherboard connectors, this particular cable will fit just fine into an 8 pin 12 volt motherboard connector. But both halves of this 4+4 will fit into a 4 pin 12 volt motherboard connector. You're supposed to use the left half of the cable shown above when plugging it into a 4 pin motherboard connector but the right half will also fit. As it happens, either half will work fine in a 4 pin motherboard because both halves of the 4+4 just provide 12 volts. The pinouts are the same for both halves so either one will work. I'm not sure why they make cables like this one because you'd figure a 4+4 cable would just be an 8 pin cable which splits in two. And you only need one half of a 4+4 cable to plug into a 4 pin motherboard. The other half is unused. But the kind of 4+4 cable shown above is pretty common so don't let it throw you.

From here.

https://www.moddiy.com/pages/Power-Supply-Connectors-&-Pinouts.html

So on that basis should the 4+4 be ok?

blu3shad0w · 12 Mar 2017 at 19:19

No, it not the graphic card cable, those are 6+2 or are marked with pci-e