New PC build just dead

CaptainRAVE · 10 Apr 2024 at 18:51

So I’ve spent all afternoon putting it all together. Thought ok, let’s plug it in and switch on with just the PSU to see if it powers up and…nothing!!! Zero signs of life.

Have tried two different power cords and outlets. PSU was working before moving it to this PC. Have I borked my relatively new PSU? What have I missed?

I’ll double check the motherboard power connection. I was at least expecting some lights or something?

Annoyingly I don’t have another PSU to test.

Edit:
7800X3D
ASUS B650 plus WiFi MB
Corsair DDR5 vengeance RAM
7900XTX
RM1000e PSU

throwaway4372 · 10 Apr 2024 at 18:54

check psu switch is on
check case power switch is wired correctly
post hardware specs
post photos of build

MissChief · 10 Apr 2024 at 18:55

Bad or misconnected power button or front panel connector? ? Top PCI-E cable connected?

CaptainRAVE · 10 Apr 2024 at 18:59

I’m just surprised there is zero life, not even standby hums or anything. Can’t think what I have missed.

Have I broken something? I’ll check I haven’t missed a cable. What’s the minimum I need to do to get signs of life from the PSU?

If I put my ear up to the PSU I can hear a very faint clicking.

I’ve worked out where the lights are on the MB. Surely all it needs is the main power connector in order to show signs of life?

Quartz · 10 Apr 2024 at 19:10

CaptainRAVE said:
So I’ve spent all afternoon putting it all together. Thought ok, let’s plug it in and switch on with just the PSU to see if it powers up and…nothing!!! Zero signs of life.

Did it work outside the case?

CaptainRAVE · 10 Apr 2024 at 19:11

Quartz said:
Did it work outside the case?

It worked before I took it out of the last PC.

Gray2233 · 10 Apr 2024 at 19:12

Make sure the CPU lead above the hsf is connected properly, it there's two sockets for it you may need both plugged in.

CaptainRAVE · 10 Apr 2024 at 19:16

Gray2233 said:
Make sure the CPU lead above the hsf is connected properly, it there's two sockets for it you may need both plugged in.

I’ll try both. I’ve only plugged in the 8 pin.

Edit: not sure I have a 4 pin connector?

Edit 2: nope, nothing. It’s increasingly looking like something is dead, I’m just not sure what.

freddie64 · 10 Apr 2024 at 19:24

CaptainRAVE said:
I’ll try both. I’ve only plugged in the 8 pin.

Edit: not sure I have a 4 pin connector?

Edit 2: nope, nothing.

Think you should be fine with just the 8 pin.

throwaway4372 said:
check case power switch is wired correctly

Agree with this, such an easy thing to get wrong.

CaptainRAVE · 10 Apr 2024 at 19:32

freddie64 said:
Think you should be fine with just the 8 pin.

Agree with this, such an easy thing to get wrong.

It’s an NZXT case that comes with a connector that as far as I can tell is plugged in correctly. It matches up with the 4 pins on the top of the connector and 5 at the bottom.

Zero signs of life to be seen. Not even the leds that would indicate an error, nothing.

freddie64 · 10 Apr 2024 at 19:38

CaptainRAVE said:
It’s an NZXT case that comes with a connector that as far as I can tell is plugged in correctly. It matches up with the 4 pins on the top of the connector and 5 at the bottom.

Zero signs of life to be seen. Not even the leds that would indicate an error, nothing.

Try without the connector just in case.

CaptainRAVE · 10 Apr 2024 at 19:45

freddie64 said:
Try without the connector just in case.

I’m not sure if there’s any other way to connect it?

Quartz · 10 Apr 2024 at 19:49

If memory serves the front panel connector block is not formally standardised and some are different. You should be able to test without the connector fitted by using a screwdriver to touch the pins.

Nate75 · 10 Apr 2024 at 19:58

Might be worth trying as it's quick, and seen this work at work.

Swap out the kettle lead and use a different power socket.

CaptainRAVE · 10 Apr 2024 at 20:01

Nate75 said:
Might be worth trying as it's quick, and seen this work at work.

Swap out the kettle lead and use a different power socket.

Tried a different lead and socket.

Quartz said:
If memory serves the front panel connector block is not formally standardised and some are different. You should be able to test without the connector fitted by using a screwdriver to touch the pins.

Just tried that, nothing.

I’m starting to think the PSU somehow got damaged during the move. Surely I’d at least be seeing some kind of LEDs or noise from somewhere?

Tempted to order an new PSU. Worst case scenario I can return it.

throwaway4372 · 10 Apr 2024 at 20:28

Some thoughts:
- could be a dead motherboard
- are motherboard standoffs fitted?
- triple check the case power button is connected to the right place, I can't tell from the pics

freddie64 · 10 Apr 2024 at 20:33

Was going to sugest you may need this breakout cable, but seeing as the screwdriver trick did not work, maybe not.

You could try jump starting the PSU to see if there is any signs of life.

xaldub · 10 Apr 2024 at 20:38

Are you able to remove panels from the case to see if the PSU fan is turning when power is switched on ? More likely the mobo is DOA, however.

CaptainRAVE · 10 Apr 2024 at 20:47

freddie64 said:
Was going to sugest you may need this breakout cable, but seeing as the screwdriver trick did not work, maybe not.

You could try jump starting the PSU to see if there is any signs of life.

Helpful. So I did that and the PSU fan and RGB fans that were connected spun up! So PSU fine?

I’m going to have to take everything off the motherboard aren’t I. Thoughts? Must be the motherboard surely.

xaldub · 10 Apr 2024 at 20:53

From looking at your mobo manual there are 4 LEDS on the top right for checking the CPU, DRAM etc during boot process. None of them light at all, even briefly ? Also, have you tried with just one RAM module. Shouldn't be that, but memory can do funny things sometimes ...
I'd try reseating the 24 pin ATX power supply cable ( at both ends ) and the 8 pin.