Silverstone st85zf question

[umaneko]

Hi, I have a Silverstone st85zf and a 8800GTX, question is that which pci-e connector should I use to connect to an 8800gtx ? I know it sound silly but for the 8800gtx requirement it needs combine Amps of 30, so I wonder if I use connector 3 and 4 would be a wise choice. As each rail has only 18A.

Rail layout information -

PCI-E #1 & #2 = +12v4
PCI-E #3 = +12v2
PCI-E #4 = +12v3

Should I use PCI-E 1and 2 or 3 and 4

 

[Bbq]

3 and 4.