4+4 Pin PSU cable doesn't match 8 pin socket

[TheYetiWakes]

I've got a Silverstone FSX 600w PSU and an Asrock Z170 gaming ITX motherboard but I'm slightly confused by the psu cables.

It's both 8 pin on the psu and 8 pin on the motherboard but the cable that came with the psu is 8 pin one end (the square and rounded pin shrouds match the psu socket perfectly) but the other end is 4+4. However, the rounded and square male shrouds don't match up with the socket even when used together and are in a different layout to the normal 8 pin socket.

Now the motherboard states you can use 4 pin connector by just using half the socket but I just need some clarification. Should I just put half the socket in that does fit along pins 1 to 5 on the board or still put both 4 pins into the socket. (The other 4 pin plug does fit as rounded shrouds will fit into the square sections) and I've seen when searching this it's so they are backward compatible?

http://www.playtool.com/pages/psuconnectors/connectors.html#eps4plus4

It just seems a bit wrong to put sockets on against configuration? Is it correct like this?

 

[Tradesman1]

The 4x4 should fit next to each other as shown in your link, then should plug into the mobo 8 pin connector with the outer extention of the 4x4 plug going over a slight protrusion in the 8Pin mobo connector

 

[TheYetiWakes]

Not sure what you mean by going over a slight protrusion?

The eight pins on the plug will fit into the socket on the motherboard but the main problem was the square and rounded profiles on the plug doesn't match up with the square and rounded profiles on the socket. Some links have said this is ok and to ignore and some have said it's not correct and they should match.

 

[Tradesman1]

The mobos 8pin connector will has a slight protrubance on one side or the other of the 4pin line (long side of connector) which the 8Pin (4+4) clips over

 

[maxwellmelon]

ok i look at pictures of the connector on your psu. yes the one connector they didnt design it with the squares on it but it doesnt matter as people have said. just use both. the one plug is keyed correctly after that one is in the other sec 4 pin cannot be installed on the incorrect side of the 8 pin connector so it wont mater that they didnt put the square ends. just use both connectors.

 

[TheYetiWakes]

Tradesman1

Yeah I realise they have a clip on one side that it clips over, that's not what I'm worried about. It's fact that layout configuration on square and rounded pins that is there to stop plugging wrong cable in isn't correct.

Maxwellmelon

In your opinion then it's fine to connect correct 8pin socket into psu and then connect both of the 4 pin ones the other end into the motherboard to make a 8 pin connector even though all of the square and rounded layout pins dont match?

 

[Tradesman1]

Should be fine

 

[maxwellmelon]

yes in my opinion it is fine to connect the two 4 pins together.

the one side is stilled keyed correctly which prevents a user from installing it on the incorrect half of the 8 pin connector. the psu maker must have figured that this was enough of a key and went chep on the second connector using a generic plug instead of buying the correct matching one.