A8N SLI-premium + EPS12V

http://en.wikipedia.org/wiki/ATX
The ATX form factor has had five main power supply designs throughout its lifetime:

* ATX — 20 pin connector (Used for all of pentium range)
* WTX — 24 pin connector (Xeon and Athlon MP)
* AMD GES — 24 pin main connector, 8 pin secondary connector (some dual-processor Athlon)
* EPS12V — 24 pin main connector, 8 pin secondary connector, optional 4 pin tertiary connector (Xeon and Opteron) defined in SSI specification
* ATX12V — 20 pin main connector, 4 pin secondary connector, 8 pin tertiary connector (Pentium 4 and mid/late Athlon XP & Athlon 64)
o ATX12V 1.3 — guidance for the −5 volt feed was removed. This was only used by legacy ISA add-in cards.
o ATX12V 2.0 — 20 pin main connector, 4 pin secondary connector (Pentium 4, Core 2 Duo, and Athlon 64 with PCI Express)
o ATX12V 2.1 — One 20-pin connector, one ATX12V 4 pin connector. Many power supply manufacturers include a 4 plus 4 pin, or 8 to 4 pin secondary connector instead, which can also be used as the secondary EPS12V connector.
o ATX12V 2.2 — One 24-pin connector, one ATX12V 4 pin connector. Main Power Connector changed from 20 pin to 24 pin to support PCI-Express requirements.
 
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