4 works 8 doesn't...

2smoothbooth · 1 Feb 2011 at 17:48

UPDATE: Nothing really to do with 4/8 pin I figured out its the power supply...My Asus P8P67-M refuses to boot to bios with either a Corsair 450w VX power supply or a (brand new) Coolermaster 550w 80plus power supply BUT...if I use a cheap nasty Ace 400w psu it boots every time without fail. Obviously it is not ideal having a £12 psu powering my system and I am mythed as to why this is happening. Anyone encountered a problem like this before? I don't really want to RMA as I hear Asus aren't the quickest but i'm not sure what else to do. I have just updated the bios to the latest version and still nothing....

Ch3m1c4L · 1 Feb 2011 at 18:03

you using the right 8pin? It will be the 4pin + 4pin most likely. You might be using the PCI-E one, although I've never tested to see if they fit or not so meh.

2smoothbooth · 1 Feb 2011 at 18:08

haha its plenty of meh. I definitely have the right cable in its an 8 pin that splits into two 4 pin, pci-e I believe is 6 pin..

Ch3m1c4L · 1 Feb 2011 at 18:53

PCI-E 2.0 is 8 pin

But yea, if its splits into 2x4pin then its def the ATX 12v cable. I have no idea why it wouldn't work, unless its faulty. Hopefully someone else will come in and let you know though.

Baldbloke · 1 Feb 2011 at 22:00

Does it work with one OR the other, just not both? Are the cables correctly oriented when you insert them? E.g all black cables nearest the outside edge of the motherboard.

Boozebeard · 1 Feb 2011 at 22:16

pci-e is usually 6 pin + a separate 2 pin actually.

saintdefender · 1 Feb 2011 at 22:40

Strange, my AX1200 has a full 8 pin (as in no detached) connector fitted into it, and it works sound : /

Ch3m1c4L · 1 Feb 2011 at 23:16

Boozebeard said:
pci-e is usually 6 pin + a separate 2 pin actually.

that's not the standard, that's just what some PSU's use for compatibility. PCI-E 1.0/1.1 is 6pin, PCI-E 2.0 is 8pin.

2smoothbooth · 2 Feb 2011 at 18:25

I have never encountered this before it looks asthough its either getting too much power or too little?? I know these boards have anti surge protection so i'm wondering if that has anything to do with it..