[SOLVED] 18 pin to 24 pin?

[Madec1533]

Hello out there! I am trying to power a second graphics card but my 1200w power supply doesn't have enough pcie ports. I bought a second 500w power supply to power just the gpu and a 24pin adapter cable for dual power supplies. The 1200w psu has a 18pin power port however so will not work with the 24 pin adapter. Any advice at all would be extremely appreciated!

 

[lvt]

Can you explain more in details?

The 1,200W PSU is the main PSU and the 500W is auxiliary PSU for the GPU, right?

What was the 24-pin adapter used for? The motherboard?

 

[--SID--]

I am trying to power a second graphics card but my 1200w power supply doesn't have enough pcie ports.

What make and model 1200w PSU? A quality 1200w PSU used to have 8 PCI-e connectors!

I bought a second 500w power supply

Make and model?

The 1200w psu has a 18pin power port however so will not work with the 24 pin adapter.

I guess the pinout is different. You have to measure the pinout on the 18p connector and compare it to the pinout of the 24p connector.