[SOLVED] All LEDs turn on, PSU fan spins. Case/CPU/gpu fans don’t spin, monitor doesn’t detect gpu

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lolsashalol

lolsashalol

Jul 29, 2021
6
1
15
Hello,
I have just finished building a pc with these specs:

MB: B450M Mortar Max
GPU: Gtx 1660 ti
CPU: ryzen 5 3600x
PSU: Be quiet pure power 11 FM 650w
RAM: Delta T-force 16 Gb (8x2)
Case: NZXT H510

I connected all the cables, plugged the psu and attempted to boot. All the system leds/rgb turned on, but the cpu + gpu+ case fans did not. PSU fan was spinning.
https://imgur.com/ypVfG3x
View: https://i.imgur.com/ypVfG3x.jpg


I found something about having excess MB standoffs that may cause shorts on another forum. I indeed had one but after removing no changed happened.

I suspect two things:

1) I plugged the cpu power cable into the wrong slot in my PSU (I plugged it into the slot that says “P8 MB”, I am too afraid to fry my system to try “p8” slot that doesnt have MB label on it

2) I am missing some sort of connection I am not aware of. I found something about sata power on another forum, but I dont have that in my case (nor the cables for it)

Can someone help?
 
Solution
S
lolsashalol said:
I think i found that connection i was missing! Should the smaller connector also go into the PSU? Because i tried without and just noticed.

https://imgur.com/D0eSo4n
View: https://i.imgur.com/D0eSo4n.jpg


just making sure in case it will cause harm.
P.s. PSU’s i’ve used before had MB cables coming out of it already, so this one is confusing me a bit
Click to expand...
Yes, try putting the 20 pin cable into MB and the 4 pin cable into the bottom 4 pins of P8 MB. It's usually a 20+4 pin cable, that's why they are seperated.
If that doesn't work, see if your motherboard's BIOS is updated to support 3rd gen Ryzen CPU's.
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jay32267 said:
"I plugged it into the slot that says “P8 MB”,
This should be correct.


" I am missing some sort of connection I am not aware of. "

can you explain this a bit more?
Click to expand...
I think i found that connection i was missing! Should the smaller connector also go into the PSU? Because i tried without and just noticed.

https://imgur.com/D0eSo4n
View: https://i.imgur.com/D0eSo4n.jpg


just making sure in case it will cause harm.
P.s. PSU’s i’ve used before had MB cables coming out of it already, so this one is confusing me a bit
 
Upvote 0 Downvote
lolsashalol said:
I think i found that connection i was missing! Should the smaller connector also go into the PSU? Because i tried without and just noticed.

https://imgur.com/D0eSo4n
View: https://i.imgur.com/D0eSo4n.jpg


just making sure in case it will cause harm.
P.s. PSU’s i’ve used before had MB cables coming out of it already, so this one is confusing me a bit
Click to expand...
Yes, try putting the 20 pin cable into MB and the 4 pin cable into the bottom 4 pins of P8 MB. It's usually a 20+4 pin cable, that's why they are seperated.
If that doesn't work, see if your motherboard's BIOS is updated to support 3rd gen Ryzen CPU's.
 
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Solution
SlavfromBulgaria said:
Yes, try putting the 20 pin cable into MB and the 4 pin cable into the bottom 4 pins of P8 MB. It's usually a 20+4 pin cable, that's why they are seperated.
If that doesn't work, see if your motherboard's BIOS is updated to support 3rd gen Ryzen CPU's.
Click to expand...
Hahah thank you that worked. 5 hours of scratching my head over a 4 pin connector. Something i’ll remember for the rest of my life. Thank you!
 
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