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Questions about GIGABYTE products => Motherboards with Intel processors => Topic started by: netlemj on March 04, 2021, 05:45:32 pm

Title: Z390-UD
Post by: netlemj on March 04, 2021, 05:45:32 pm

Why does my new motherboard have a 4 pin and 8 pin cpu power socket but my PSU only has an 8 pin? Can I use just the one, do I need both and can you use a spare molex with an adaptor to feed the 4 pin socket?

Title: Re: Z390-UD
Post by: shadowsports on March 05, 2021, 03:23:20 pm

Greetings,
You only need one.  Just use the one your PSU has a connector for.  12v 2x2 or 12v 2x4

(https://i.imgur.com/Uwrsyyq.png)

Title: Re: Z390-UD
Post by: dmdilks on March 06, 2021, 12:16:31 am

They did that so if you were OC you could plug in another power plug. Some PSU come with a 8 pin and 4 pin CPU plugs.

But why it is really a over kill. The 4 pin power plug carries 150w and the 8 pin plug carries 300w. The only reason motherboards all started to go to 8 pin plugs was to make it standard across the board.

Server boards had a 8 pin plug a lot longer then non server boards. A lot server boards had the 2 CPU's so that is why they had one 8 pin socket.

Plus here is one that at one time boards only had a 20 pin plug and not CPU plug.

Most CPU's today like the 10th gen are at 65w or 125w.