6 pin power cable 8 pin motherboard

Posted on 2014-03-14
Last Modified: 2016-05-13
Hi, I have just purchased a new MB and CPU.
My power supply only has the usual ATX power and a 6 pin cable for the CPU.
It's an 8 core AMD and an asrock 980 MB.

any advice would be appreciated
Question by:fhandley
LVL 35

Accepted Solution

Dan Craciun earned 125 total points
ID: 39928610
You're sure the 6 pin cable is for the CPU? Cause on all PSU's I've seen, the CPU cable has 4 or 8 pins.

Those with 6 pins are for video cards.

LVL 15

Expert Comment

ID: 39928612
Please take a look at this page. I think it can be useful:

Hope it helps. Regards.
LVL 35

Expert Comment

by:Dan Craciun
ID: 39928615
You need an adapter, such as this:

Or a new PSU.

Simple, centralized multimedia control

Watch and learn to see how ATEN provided an easy and effective way for three jointly-owned pubs to control the 60 televisions located across their three venues utilizing the ATEN Control System, Modular Matrix Switch and HDBaseT extenders.

LVL 92

Assisted Solution

nobus earned 250 total points
ID: 39928633
just to be sure - post a picture of the connector
but i agree with Dan  - 4 or 8 it is

here it says you need an 8-pin connector (use the picture in full front) :

so you probably need an adapter - if you PS can handle the load
post the model, and calculate the power needed here :      

adapter :
for sata connectors :

Molex :

Author Comment

ID: 39928727
So I've tried with just the 4 pin connector which most blogs agree wont create any smoke.

I'm getting no post beeps or display on my monitor, I'll head down to the shop an get a molex adapter tomorrow and see how I go.
LVL 70

Assisted Solution

garycase earned 125 total points
ID: 39928831
Is your primary ATX power connection from the power supply the 24-pin connection this motherboard requires?    You need to have BOTH that AND the 8-pin EPS connector or you won't be providing the required power for the board.

Also, be sure your video card doesn't require an auxiliary PCIe power connection (THAT is what your 6-pin connector is) ... and if it does, connect it as well.

If you elect to use an adapter to provide the 8-pin EPS power, be sure it's combining two different PSU outputs ... some of these simply split the 4-pin output into 8-pins -- and this does NOT increase the available power on that line from the power supply (and likely won't work).    Personally, I'd buy a power supply with an 8-pin EPS power output.
LVL 92

Assisted Solution

nobus earned 250 total points
ID: 39928918
>>  So I've tried with just the 4 pin connector which most blogs agree wont create any smoke  <<  not directly no - but you may see something charring, or burning in a few months time.
Do it properly - buy the adapters you need, or buy a PS with the proper outputs

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Management Engine Interface 4 63
is freezing possible in ssd? 4 69
SFTP Client- Server problem 6 35
Want Win 10 Pro to search like Server 2010 or 2012 27 114
This article is a cursory discussion of Intel SpeedStep Technology (SpeedStep) and Enhanced Intel SpeedStep Technology (EIST).  The goal is more to illuminate what these technologies are and are not.  The detail of how each technology works is not a…
Like many organizations, your foray into cloud computing may have started with an ancillary or security service, like email spam and virus protection. For some, the first or second step into the cloud was moving email off-premise. For others, a clou…
The viewer will learn how to successfully create a multiboot device using the SARDU utility on Windows 7. Start the SARDU utility: Change the image directory to wherever you store your ISOs, this will prevent you from having 2 copies of an ISO wit…
Finding and deleting duplicate (picture) files can be a time consuming task. My wife and I, our three kids and their families all share one dilemma: Managing our pictures. Between desktops, laptops, phones, tablets, and cameras; over the last decade…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question