Opus 320 - ATX, BTX, 24 pin, 20 pin... huh?

**Nola111** · 02-01-2008, 11:04 AM

So I ordered a 320 watt PSU direct from Opus, and when you add it to your cart, it gives you the choice of "BTX - 24pin" or "ATX-20pin" (the mp3car store does not give any options?). I had ordered a microATX motherboard the same day, so I chose the "ATX" option since it seemed logical. So of course I get my motherboard today and it's 24 pin.

I have not received the 320 yet, but I'm going to go ahead and assume that it's going to have 20 pins when it gets here. So why was the 24 pin option called "BTX?" I assume the 20 pin connection from the Opus will not run my motherboard? But why is there no option in the mp3car store?

Confused.

**Nola111** · 02-01-2008, 11:22 AM

Just read the manual online and it only mentions including a 20-pin cable. I also quite often see pics of motherboards with a 24-pin socket with 4 of them covered up by a yellow sticker.

I thought I was pretty well-versed here, but I'm apparently slightly confused. Perhaps my questions will be answered when I actually receive the PSU. Sounds like I might need to send it back and exchange it for "BTX" though.

**DarquePervert** · 02-01-2008, 11:53 AM

20 to 24-pin adapter.

**Nola111** · 02-01-2008, 12:05 PM

Thanks DP. Are you saying that's what I need, or are you saying that the Opus comes with this?

**DarquePervert** · 02-01-2008, 01:08 PM

That's what you need if your motherboard has a 24-pin ATX connector.

**Nola111** · 02-01-2008, 01:22 PM

Ok.

**jdc753** · 02-01-2008, 04:02 PM

The guys at OPUS seem to be pretty reasonable people. I would think you could give them a call or send them an email and see about getting a 24pin cable.

I just ordered a 320 and saw the same thing, I knew I would need 24pin though as I think its the standard now. I also had no idea what BTX was thought. I got it a few days ago but sadly it was a 250w instead of a 320, however on the PSU board it has a 24pin and then on the mobo side it has a 20 pin with a 4 pin addon and then the second 4 pin piece. I am thinking now maybe yours will come the same way and you will be all set.

**Nola111** · 02-05-2008, 01:39 PM

jdc, you are right. Mine came with that too, so I'm good to go.

**jdc753** · 02-05-2008, 02:37 PM

Great good to hear. I'm still anxiously awaiting my 320 to arrive so I can get my "case" all mocked up and ready to install into my truck.

Enjoy your PSU.