8pin powercable on P5BDLX, necessary?

[Big SturL]

This question has probably been asked numerous times before, but I'ma go ahead and ask again.

I'm building a system for "friend" of mine, composed of the following components:
Asus P5B DLX Wifi
Intel E6400
PowerColor X1950XTX
Corsair Twin2X P6400 C5
2x Samsung Spinpoint 250GB
NEC DVD-burner

I have found a case, the Antec TX1050B-EC, which also comes with a 500W psu (which I'm also wondering is any good). I don't know whether this comes with a 8pin power connector or not, but if it didn't, would that matter?

[Grinch]

it will use either 4pin or 8 pin

on the Antec TX1050B-EC need to know what the 12V rails are like...

[Big SturL]

Jah... What I'm most curious about is whether 8PIN is neccessary or not. Will it bring any performance gains?

[Big SturL]

Bump.

Hasn't anyone got a somewhat clear answer to this?

[tommo123]

kinda curious about this myself.

using 1 4pin at the mo

[-n7-]

It is not necessary.

Mine came with the second 4 pins covered with a cap & no instructions on that, so i left it alone.

[Lestat]

its not necessary but the 8-pin add's extra needed rails to the mobo for a stable vcore etc etc.

if you have a psu with an 8-pin use it if not,, then you dont have a choice.