SPEEDLINK SL-6910-SSV-01 PECOS 420W ATX Power Supply Unit User Manual

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20+4-pin MAIN power connector – motherboard
4-pin +12V AUX/P4 power connector – 12V AUX/P4
5-pin SATA power connector – SATA hard drives,

SATA CD-ROM/DVD drives/writers

6-pin PCI Express power connector – PCI Express graphics cards
4-pin peripheral device connector – IDE hard drives, CD-ROM drives/writers,

DVD drives/writers, AGP graphics cards

4-pin floppy connector – disc/floppy drives

First, connect the main power connector (1) on the power supply unit to the mother board.

Some motherboards require a 20-pin connector, others a 24-pin connector. For this reason the

Pecos 420W has a 20-pin connector with an additional 4-pin connector. This 4-pin 20 to 24-pin

combo connector extender must not be plugged into the 12V AUX/P4 socket. It should either be

plugged into the 24-pin extended ATX socket or, if an ATX 20-pin socket is present, must be left

unplugged.
There is a dedicated 4-pin +12V plug (2) for the 12V AUX connector which is easy to identify as it

only has two black and two yellow cables.
The 5-pin SATA power connector (3) is a very flat, black connector which is used to connect the

power supply unit to a SATA hard drive or SATA CD-ROM/DVD drives or writers.
The 6-pin PCI Express power connector (4) is intended for PCI Express graphics cards. Certain

AGP graphics cards as well as IDE hard drives and CD-ROM and DVD drives and writers require