• Now's your chance win big! Join our community and get entered to win a RTX 2060 GPU, plus more! Join here.

    Pi Cast Episode 3 streams live on Tuesday, August 4th at 2:30 pm ET (7:30 PM BST). Watch live right here!

    Catch Scharon on the Tom's Hardware Show live on Thursday, August 6th at 2:00 pm ET (7:00 PM BST). Click here!

Question 1st build no response

idk159

Prominent
Apr 10, 2019
18
0
510
0
Hello, 1st time builder, i tried turning on my pc after completing my build (checking to see if i could reach bios). Nothing happened i got no response (none of my fans spun, monitor didnt detect hdmi cable plugged in), only my mobo led light turned on after a short delay.I thought my psu may be faulty so i tried the pin method (psu,case fan and pin) and my psu and case fan spun normally. Now im confused on what is faulty, my psu or mobo, or maybe something else ( maybe i did something wrong like my cabling). If it helps after turning my pc off my mobo led light turned off after a delay.

My parts: https://pcpartpicker.com/list/pTgvJb
I can provide any pics needed
 

Juular

Upstanding
Mar 14, 2020
449
91
290
16
Does your motherboard have 'Ryzen 2000 ready' sticker on the box ?
Also, that PSU is ancient, are you sure you've linked the right one ?
 

idk159

Prominent
Apr 10, 2019
18
0
510
0
@Juular The seller who i got the motherboard from said the bios version was the latest so it should be compatible. Would that prevent my psu,case and cpu heatsink fan from turning on.

My exact psu model is a Corsair CX400 cmpsu, my build is a very budget one, hence no gpu only apu. So i bought a used antec case, which the psu came with.
 

idk159

Prominent
Apr 10, 2019
18
0
510
0
So could the ancient psu be the problem, because the cables the psu had were a problem tbh.
Here are some pics of how i connected the cables to my motherboard if this could perhaps provide an insight.

 

idk159

Prominent
Apr 10, 2019
18
0
510
0
Because the psu i have doesnt really have any other cables i could use, im guessing this is starting to look like a psu problem. Forgive my low/limited knowledge but would something like cables really prevent my system and fans from starting? Would taking a picture of all the cables my psu has help by any chance?
 

bignastyid

Titan
Moderator
Good chance that motherboard is fried now. Pci-e and CPU power are opposite polarities so you just shorted the CPU power connector. The pins are also shaped different to try and prevent what you have done and would have required alot of force or modification to even plug it in.

The CX400 maybe old but it most definitely has a 4+4 pin cpu power connector.
 
Because the psu i have doesnt really have any other cables i could use, im guessing this is starting to look like a psu problem. Forgive my low/limited knowledge but would something like cables really prevent my system and fans from starting? Would taking a picture of all the cables my psu has help by any chance?
That's not how it works, I'm afraid. You don't just shove whatever connector wherever. The PSU has multiple output voltages and in some cases, reversed polarity. You're lucky if you didn't fry your motherboard.

That PSU should have had a four pin to plug into that port. The 6-pin you're using is supposed to go into a discrete graphics card.
 

Juular

Upstanding
Mar 14, 2020
449
91
290
16
  1. Place that PSU in a plexiglass box as a antique piece of hardware to show off.
  2. Get a new PSU.
  3. Connect it right this time. Pray that you didn't fry this motherboard already.
  4. If motherboard still doesn't work there's a good chance you did fry it. But there's also slight possibility that the culprit is the RAM or you just didn't connect case front panel connectors right, you can try to just short PWR_BTN or PWR_ON jumper with a screwdriver without connecting it first, that's essentially what a button on the case does.
 

idk159

Prominent
Apr 10, 2019
18
0
510
0
Well thanks for the help guys ill get a new psu. If my mobo led still turns on does this mean i have a favourable chance that my mobo didnt get fried
 

Zerk2012

Polypheme
Ambassador
Because the psu i have doesnt really have any other cables i could use, im guessing this is starting to look like a psu problem. Forgive my low/limited knowledge but would something like cables really prevent my system and fans from starting? Would taking a picture of all the cables my psu has help by any chance?
You should have a 8 pin connector that splits into a 4 +4 pin.
 

idk159

Prominent
Apr 10, 2019
18
0
510
0
@Zerk2012 Ah damn, i assume you mean this, which i left unconnected.

If i use the 4+4 pin connector now and my fans dont work and the system just doesnt function. Do i assume the mobo is fried? Also can i use either side of the 4 + 4 pin connector?
 
Last edited:

idk159

Prominent
Apr 10, 2019
18
0
510
0
Yes it was suggested to me above, sorry if my terminology is off im quite the newbie.
Edit: Nvm i missread what the person meant.
 

idk159

Prominent
Apr 10, 2019
18
0
510
0
Final question, would it be alright for me to just buy a new mobo and still use the same antique psu. But of course this time i do the cabling write and dont fry it. Or is it strongly advised i also buy a new psu.
 

Zerk2012

Polypheme
Ambassador
@Zerk2012 Ah damn, i assume you mean this, which i left unconnected.

If i use the 4+4 pin connector now and my fans dont work and the system just doesnt function. Do i assume the mobo is fried? Also can i use either side of the 4 + 4 pin connector?
Yes that is what you should used split it in half and it will only plug in one way and one side of it. You probably fried the board or might even fried the CPU.
 

ASK THE COMMUNITY

TRENDING THREADS