Wrong PSU?

[Belgar]

Hi guys,

 

Ive had a problem with my PC when one day it was working fine and next one wont turn on at all. I was really busy at work then so I put it in repair store. They said its psu problem, so I ordered new one, tried pluging all outside the case before putting it in and hell the same problem, wont do anything.

 

When I switch PSU to on, a few mobo leds will turn on but as soon I hit power button everything goes dark. Has anyone have any idea? 

 

The PC is brand new (6months) 

Corsair HX1200W

AMD R9 3900X

GTX 1080

Gigabyte aurorus master X570 wifi mobo

[Ankerson]

So it doesn't work with just the CPU and ram?

 

Have you tried to reset the BIOS?

 

Tried the backup BOIS?

 

Assuming all the power connections are plugged in and correctly...

 

Could be the MB went bad, that would be my 1st thought without actually being there and switching out the CPU and ram to a known working MB.

[Guest]

How did the shop confirm it was a PSU problem and not a motherboard problem?

 

Did they build the PC or only sell you the parts?

 

 

[Belgar]

1 hour ago, Ankerson said:

So it doesn't work with just the CPU and ram?

 

Have you tried to reset the BIOS?

 

Tried the backup BOIS?

 

Assuming all the power connections are plugged in and correctly...

 

Could be the MB went bad, that would be my 1st thought without actually being there and switching out the CPU and ram to a known working MB.

yeah I ordered new mobo will try tommorow, and yes all cables were plugged correctly, and I have 4 ram modules and tried every ram slot, so dont think its ram problem. If mobo tommorow wont work its probably cpu then.

[Belgar]

1 hour ago, jonnyGURU said:

How did the shop confirm it was a PSU problem and not a motherboard problem?

 

Did they build the PC or only sell you the parts?

 

 

no idea, they were super unprofessional tbh, wrote them an email today

[Guest]

You have no idea if they built the PC?

 

[Belgar]

1 hour ago, jonnyGURU said:

You have no idea if they built the PC?

 

oh damn, I read it wrong, kinda desperate. No they just had it for diagnosis, I built it myself

[Guest]

Ok.  What was the old PSU?   Another HX1200?

 

[Belgar]

4 minutes ago, jonnyGURU said:

Ok.  What was the old PSU?   Another HX1200?

 

yes

[Guest]

50 minutes ago, Belgar said:

yes

Do you have a DMM?  Can you jump the PSU and check the voltages? 

 

http://jongerow.com/PSU_test/index.html

[Belgar]

8 hours ago, jonnyGURU said:

Do you have a DMM?  Can you jump the PSU and check the voltages? 

 

http://jongerow.com/PSU_test/index.html

I have a brand new one so PSU is not a problem anymore

[Belgar]

Yeah new mobo arrived, switched it and its working, so wrong diagnostics, it was bad mobo

[Ankerson]

5 hours ago, Belgar said:

Yeah new mobo arrived, switched it and its working, so wrong diagnostics, it was bad mobo

 

That's what I thought it was from the beginning....