Question 2 CPU headers on msi b450 gaming pro carbon?

[florianwahl2]

Hi, the MSI B450 Gaming Pro Carbon has two Pins for CPU (as you can see on the image). My PSU doesnt have 2 CPU cables, only a 4+4 Pin. Do i need both cables and a new PSU or is this just for hardcore OC?
https://drive.google.com/file/d/1QyEl65O2yAjrz_tVFgaoPjUhwpDRJthB/view?usp=sharing

 

[drea.drechsler]

Whether you actually need them for power delivery may be doubtful but some motherboards won't boot unless all sockets are populated with connectors. You could probably get by with a splitter / adapter cable if it turns out that's one that does.

Something like this:
https://www.newegg.com/p/N82E16812423180?Description=atx cable&cm_re=atx_cable--12-423-180--Product

 

[kanewolf]

When in doubt, check the manual -- it says "Make sure that all the power cables are securely connected" My emphasis on ALL ...

 

[florianwahl2]

thanks a lot. i will try without first and get a splitter when it doesnt work. On my friends board (not a msi one but a similar am4+) it worked finde with one 8pin cpu connector

 

[drea.drechsler]

thanks a lot. i will try without first and get a splitter when it doesnt work. On my friends board (not a msi one but a similar am4+) it worked finde with one 8pin cpu connector

Sounds like a plan 👍

By the way, I would STRONGLY suggest NOT using this adapter option if you do happen to be planning on extreme overclocking attempts. But for a 'normally' overclocked Ryzen, even a 2700, 8 pin power delivery is really quite adequate.