12v CPU connectors

[LeeroyHighhill]

hey everyone,
i'm in the process of building my first PC and i noticed the mobo has both a 8pin and a 4pin and i've been reading some on here to
see if they both need to be plugged in to work right and i keep seeing different things like yes they both do or no not unless your
doing crossfire or sli so....my question is do i really need both or will it work off just the 8pin please someone let me know this is all
i'm lacking to be done with it.

CPU- AMD FX9590
GPU- AMD R9 280X
MOBO- ASUS crosshair v formula-z
RAM- AMD R9 2400 gamer series

[xANDers]

Hi) On such configuration it is necessary to include 8 and 4.

[MeanMachine]

Hi LeeroyHighhill
The 4pin socket at the top of your MB is required to assist the CPU in higher OCs, especially with the FX-9590.
The 4pin EZplug is used to assist your GPU. Don't confuse the two.

[blppt]

"my question is do i really need both or will it work off just the 8pin please someone let me know this is all "

Its always possible that *somebody* might get the 9590 stable with just the 8-pin connector, but I was never able to do it. Connect both for peace of mind, as recommended above.

[AMD_FX_9370]

The extra 4pin near the memory sockets does absolutely nothing in my rig have tested with and without. Pretty sure it just supplies more power to the cpu/nb. Would come into play when using LN2 and all out overclocks.