Mobo w/ P4 12V and a 8-pin CPU power and a "power signal connector"

y11971alex

Reputable
Jan 29, 2015
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4,510
I've got a board with both a P4 12V (4 pin) slot and a 8-pin CPU power slot; however, the power source has only a conjoined cable with 2x P4 12V connectors.

How can I solve this situation, which requires a total of 12 pins when I've only got 8?

The power signal connector is listed as mandatory for the mobo, but I can't seem to find this peculiar 5-pin cable that plugs into the slot right next to the main ATX power supply.