Connector question

[Brazos]

My Ausus mb has a 24 pin connector plus a 4 pin connector. I have two power supplies. One has 24 pin plus an 8 pin connector (plus 6 pin sli connectors, esata, etc) The other power supply has a 20 pin plus a 4 pin connector (plus others).
Do I need a power supply that has a 24 pin plus a 4 pin? If so - what spec is that?
I've looked for online guides but no luck.
Thanks in advance.

 

[jonnyGURU]

Let's make sure we're clear on what connectors are what.

For the motherboard, there is 20-pin power connectors and 24-pin power connectors. MOST 24-pin power connectors consist of a 20-pin and a 4-pin that can be attached and detached so they can be used in both 20-pin and 24-pin motherboards.

4-pin power connectors power the CPU. So do 8-pin power connectors. Often times, an 8-pin can be split to make two 4-pin connectors.

The power supply that has a 20-pin and a 4-pin: If it's REALLY old, it may have just that and may be made for motherboards that are pre-24-pin. This PSU may not be good to use in a modern system because it probably has most of it's power on the +5V and certainly no PCIe connectors. If the PSU has a 20+4-pin, it HAS TO HAVE a 4-pin as well. The two are always found on the same PSU. It's part of the standard.

The power supply that you have that has a 24-pin and an 8-pin: I almost guarantee you that the 8-pin on that PSU splits in two. You typically don't see a power supply with an 8-pin that DOES NOT also have a 4-pin for the CPU.

 

[Brazos]

When I get home I'll ck my psu with the 24 / 8 pin connectors and see if the 8 can be split into two. If not just slip half of it onto the mb's 4 pin connector? I agree with you - I thought it was strange to have a 24 pin psu w/o a 4 pin connector.
Thanks for the help.

 

[mpilchfamily]

If the 8 pin doesn't split then i hope you have room to the side of the connection to allow the other 4 pins to hang off.

 

[Brazos]

Well the 8 pin didn't split but there was enough room to get 1/2 of it on the mb's 4 pin connection. Machine working fine.
Thanks for the help - don't think I'd be brave enough to do that without advice!