Upgrading PSU

[Vandorlot]

My friend is upgrading his psu from a seasonic focus plus gold 650 watt to a 850 watt seasonic prime platinum. Can he keep the cables from the old psu and just plug them into a new one?

[seon123]

In this case, yes. 

[Vandorlot]

Just now, seon123 said:

In this case, yes. 

What would make it not work in other cases? If it was different psu brands?

[seon123]

1 minute ago, Vandorlot said:

What would make it not work in other cases? If it was different psu brands?

That's correct in most cases. 

Some brands use different pinouts, depending on the model. I know that EVGA and Corsair does this. Some older Seasonic PSUs might also use a different pinouts from newer models. 

And in some cases, different brands can use the same pinouts for some models. For example, the BitFenix Whisper M and Corsair RMx. 

[Vandorlot]

1 minute ago, seon123 said:

That's correct in most cases. 

Some brands use different pinouts, depending on the model. I know that EVGA and Corsair does this. Some older Seasonic PSUs might also use a different pinouts from newer models. 

And in some cases, different brands can use the same pinouts for some models. For example, the BitFenix Whisper M and Corsair RMx. 

Do the M12II Evo and the Focus Gold + use different pinouts and how would I check this?

[seon123]

9 minutes ago, Vandorlot said:

Do the M12II Evo and the Focus Gold + use different pinouts and how would I check this?

Using Cablemod's compatibility list is a nice way to check. They have a lot of PSUs there. 

Just googling it is another option. 

 

Cablemod doesn't have the PSU listed, and I couldn't find it from a quick Google search.