Motherboard does not have 12v 4 or 8 pin connector

Shrinetom1 · Dec 21, 2016

I have the Asrock N3150M, and it does not have the 4 pin connector for my PS so the desktop does not function how does a newer motherboard not have this attachment and how do i get around this and make the pc work?

Multipack · Dec 21, 2016

If it doesnt have one it doesnt need one!

clarkjd · Dec 21, 2016

There is something else going on here other than the connector issue. Have you tried to upgrade the CPU or something?

Shrinetom1 · Dec 21, 2016

Multipack :

If that is the case why does the back usb obtain power and nothing else? Is it possibly wired wrong or am i getting issues elsewhere?

Multipack · Dec 21, 2016

Yes elsewhere. Check this first http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems

Shrinetom1 · Dec 21, 2016

Multipack :

clarkjd :

Shrinetom1 :

Multipack :

After reading and re-checking my PC everything seems to be in working order well plugged in wise but step 2 of that link is the complete opposite of what you said or does step 2 get negated for my motherboard not carrying that port. http://www.asrock.com/mb/Intel/N3150m/ is the link to my board if that helps processor is included in it so i didn't think that was the issue1 any thoughts let me know! thanks for the time!

Shrinetom1 · Dec 21, 2016

clarkjd :

From my understanding since the CPU is on the board I figured that wasn't the issue for the moment http://www.asrock.com/mb/Intel/N3150m/ thats my board if that helps at all, i can link the power supply as well if they may help?

Multipack · Dec 21, 2016

The 4 or 8 pin 12v connector provides additonal power to the CPU. If your board only supports CPU's that dont require extra power, it wont have a connector. The 24 pin power cable powers your system.

Did you check for bent pins in the cpu_socket?

Shrinetom1 · Dec 21, 2016

Multipack :

i just did, everything seems in order nothing appears off set. connects very smoothly. I'm fairly sure its wired 100% correctly as well the one minor thing i've thought could be wrong is the power switch connector facing the wrong way or something along those lines but I've tried every which way possible for that as well.

Multipack · Dec 21, 2016

You removed cooler and cpu?

Shrinetom1 · Dec 21, 2016

Multipack :

it seems i misunderstood that I thought you meant the 24pin slot. I did not remove the CPU purely because I don't think I'm tech savy enough to do it myself.

Multipack · Dec 21, 2016

Did you install it yourself? If you did, you are savvy enough to uninstall it. If not, RMA your motherboard.

Shrinetom1 · Dec 21, 2016

Multipack :

I did not, it came pre installed if that makes sense, just did a budget pc off newegg had a few buds overlook the components all should be working together just fine, so you're thinking i got a defective motherboard/CPU? or am i just lost in the set up

Multipack · Dec 21, 2016

Well you can try two things. One, make sure you have your monitor plugged into the correct video output (not the motherboard one if you have a graphics card) and two, connect an internal speaker and listen to the diagnostic beeps.

I presume you have wired it correctly. If you havent then yes it could be that, but am going on the presumption you did.

Shrinetom1 · Dec 21, 2016

Multipack :

Ok so last thing I promise (hopefully) of all things allowing the PC to start up correctly would be having the monitor hooked up into the motherboard? cause i do currently but I'm on my way to pick up a dVi to VGA converter the second you said that. just curious if my hopes should be higher or lower.

Multipack · Dec 21, 2016

If you have a graphics card, the motherboard video output will be disabled.

Shrinetom1 · Dec 21, 2016

But that wouldn't be the cause of no lights coming on in general and all that i assume?

Multipack · Dec 21, 2016

Did you connect the front panel header cables? Check they are all connected properly. I thought you said you had power but I think you mean the USB charging ports were just working. Unless you connected the power/reset buttons to the board correctly it wont power on. Thats the only other thing I can think of.

Shrinetom1 · Dec 21, 2016

I believe its all connected correctly, and yea the usb ports from the motherboard do work so i assumed it had power? Besides that it wasnt the graphics card idea.

Multipack · Dec 21, 2016

The USB ports provide power when its off on a lot of boards, as long as PSU is connected and on. I think you may have the front panel leads the wrong way around but still. Ok, try disconnecting all of the front panel leads and jump it to see if it powers up.. https://www.youtube.com/watch?v=FuPZlliGqBw

Shrinetom1 · Dec 21, 2016

I can safely say all the front panel leads are connected 100% correctly ive checked way too many times with the manual. But the jump start seems funky not having that MB he has

Multipack · Dec 21, 2016

You don't need the exact same board really. Its just a case of bridging the circuit. I just thought there may be an issue with your power button, s there seems to be power going through the board itself.

Ok, if you dont fancy that, then there's not much else left to try, as you arent getting the board to turn on. It should do that at the very least. Basically means either your PSU or board are dead. And from the sounds of it it isnt your PSU.

Motherboard does not have 12v 4 or 8 pin connector

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