20-pin ATX PWR connector in a 24-pin EATXPWR slot?

[Noel 4,571]

I am putting together another machine for me honey and I have an older Enermax 486W ATX PS that is fine as far as total watt rating goes, with a 20A 12v rail, and the board I am using has integrated intel graphics. She plays no games, so this is fine. The board is an ASUS P5Q-VM. Does anyone know if it is safe to use the 20-pin off the PSS to connect to the 24-pin mainboard slot? The extra 4-pin +12v ATX connector on the PS fits on the female socket on the mainboard no problem. I've searched the web and found some guidance, but it didn't sound definitive enough for me to risk it. What do you know? There are adaptors for sale, but as far as I can tell it really doesn't add the add'l 12v supply from the PS, so it seems pointless, but I don't truly understand it either!Thanks in advance,NoelQX9650 w/ Retail HSF|ASUS P5E3 Premium WiFi|4GB Muskin Ascent 7-6-6-18 1T DDR3-1600|EVGA 8800GT|Seagate SATA 2 x 2|Seagate Cheetah 15K.x|XP Pro SP2|Vista 64--maybe never to be installed

[flilotUK 0]

I have my 20 pin ATX PSU connecctor plugged into the first 20 pins of the 24 pin socket on my motherboard, with the seperate 4-pin CPU connector near the CPU with no problems. (My motherboard is an Asus M2N-SLi Deluxe).