8 pin ATX + 4 Pin ATX = 12Pin ATX???

[mathew_13]

Okay so I recently just bought the MSI M7 ACK (GREAT MOBO). But the ATX is weird on this thing. Next to the CPU it has an 8 Pin with a 4 Pin next to it. I don't know if you need both or if you just need at least an 8 pin or a 4 pin. I looked online and couldn't get ANY answers. I just put a ticket in for MSI but they take way too long to answer. So I figured id come here. The computer runs just fine but I did hear without the extra 4 pin you cant OC the i9 7900x. Idk if its true or not I haven't really tried because I'm kinda scared lol... If this is true, where can I find a 4 pin ATX chord that can be added to my corsair CX850M or where can I find myself an 8Pin +4 Pin ATX cable because I've looked for days and still cant find anything. Thank you in advance!

 

[InvalidError]

The 8-pin alone should be good for 300+W. That's enough for just about anything short of extreme LN2 overclocking.

 

[mathew_13]

The 8-pin alone should be good for 300+W. That's enough for just about anything short of extreme LN2 overclocking.

Okay thank you, so what would be the point of having the extra 4Pin?

 

[raisonjohn]

The additional 4-pin gives your motherboard more 12V lines for extreme OC'ing in case the 12V lines on the 8-pin will find itself insufficient.

Sadly, your current CX850M PSU only has 1 ATX12V/EPS connector, a 4+4 pin (or 8-pin).

In order for you to plug in both the 8-pin and the 4-pin of your mobo for extreme OC'ing, you need a PSU that has at least 2 ATX12V/EPS connectors (usually, both 4+4 pins), which usually comes with 2 separate cables (plugs in to separate female socket on the PSU itself). Some examples of such PSUs in the Corsair line up are the: AXi/AX series (all), HXi series (all), some HX series (HX850 and HX1050 only), the RM850i, some RMx series (RM1000x and RM850x only), and some TX/TXM series (850W and 750W only).

You plug the 4+4 on the 8-pin and just half of the other 4+4 (leaving the half 4-pin unattached) to the 4-pin of your motherboard.

 

[mathew_13]

The additional 4-pin gives your motherboard more 12V lines for extreme OC'ing in case the 12V lines on the 8-pin will find itself insufficient.

Sadly, your current CX850M PSU only has 1 ATX12V/EPS connector, a 4+4 pin (or 8-pin).

In order for you to plug in both the 8-pin and the 4-pin of your mobo for extreme OC'ing, you need a PSU that has at least 2 ATX12V/EPS connectors (usually, both 4+4 pins), which usually comes with 2 separate cables (plugs in to separate female socket on the PSU itself). Some examples of such PSUs in the Corsair line up are the: AXi/AX series (all), HXi series (all), some HX series (HX850 and HX1050 only), the RM850i, some RMx series (RM1000x and RM850x only), and some TX/TXM series (850W and 750W only).

You plug the 4+4 on the 8-pin and just half of the other 4+4 (leaving the half 4-pin unattached) to the 4-pin of your motherboard.

Okay, am I really at a disadvantage here without it? Like nothing significant right?

 

[raisonjohn]

Unless you are doing extreme overclocking, you won't need that additional 4-pin ATX12V.

 

[mathew_13]

Unless you are doing extreme overclocking, you won't need that additional 4-pin ATX12V.

Thank you so much! I'll see if I can OC a little bit!

 

[InvalidError]

The 8-pin alone should be good for 300+W. That's enough for just about anything short of extreme LN2 overclocking.

Okay thank you, so what would be the point of having the extra 4Pin?

As I already wrote: stupidly extreme overclocking.

 

[mathew_13]

The 8-pin alone should be good for 300+W. That's enough for just about anything short of extreme LN2 overclocking.

Okay thank you, so what would be the point of having the extra 4Pin?

As I already wrote: stupidly extreme overclocking.

Perfect, thank you man