New PC build just dead

CaptainRAVE

CaptainRAVE

CaptainRAVE

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Joined
21 Nov 2004
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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
 
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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?
 
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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.
Click to expand...

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


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

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.
 
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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.
Click to expand...

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.
Click to expand...

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.
 
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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.

Click to expand...

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.
 
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Ok, so I disconnected the gpu, sound card and some of the USB inputs and it posted! I’m now getting lights and LEDs. I did read a post earlier regarding someone having a BIOS issue with USB case connectors…

Time for food and then a process of elimination! Thanks for your help all, will report back.

Life!
 
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Seems to be the USB 3.2 Gen Type-C connector causing it! I’m assuming there’s a bios update or some such. Wow.

I feel like I need RGB along the bottom, although those are expensive fans to replace, but one thing at a time! I do have a light strip along the bottom I guess.
 
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xaldub said:
I'm assuming those cables are for your front panel/chassis USB ports ? Is it an older case with 3.0 or 3.1 gen ports ? That shouldn't be an issue ... normally.
Click to expand...

NZXT H9 flow.

Apparently…
2x USB 3.2 Gen 1 Type-A
1x USB 3.2 Gen 2 Type-C

Makes sense, the board says it supports Gen 1 type C. My bad.
 
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Nate75 said:
Annoyingly I am now pricing up that case!

I built a new machine about a year ago but re-used the case.

Thinking now I would like this one lol...
Click to expand...

I was torn between the Hyte Y60/70, Lian Li O11 Vision/Dynamic and the NZXT H9 Flow/Elite. Ended up with the H9 flow and very happy with it. Picked it up for £150 and think it was pretty good value. Was still rocking an old and small ex display Anidees case that was a pain to work with and had terrible cooling.

Not too bad all in all:


I just have a vibration somewhere that I need to find.
 
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wookiee87 said:
that particular connector is keyed one way, if you install it wrong you can damage the small plastic tab inside on the motherboard side and create a ground short which will stop any pc from powering on. Did you plug it back in and flip it the other way or leave it unplugged?
Click to expand...

Have left it so far, but I’ll be back in the case tomorrow for the reason below that I just came to update this thread with.

I can’t explain why it occurred to me this morning when I started work, but I realised my RGB ‘intake’ fans are the wrong way around, probably explaining my slightly higher than expected idles. In other words, I have bottom intake x3 and front, rear and top exhaust x7 :D. I had a lot more on my mind at the time of ordering them.

Finding a ‘reverse’ fan kit that looks good on the front (without the fan bars across) and with decent RGB is surprisingly tough, but I’ve settled with these. Looked at a few Lian Li offerings, but couldn’t settle on any. Had a few other options, but didn’t like the RGB arrangement. So settled on these:

www.overclockers.co.uk

Phanteks D30 Reverse Airflow 120mm DRGB PWM Fan Triple Pack - Black

Order Phanteks D30 Reverse Airflow 120mm DRGB PWM Fan Triple Pack - Black now online and benefit from fast delivery.
www.overclockers.co.uk www.overclockers.co.uk

Not to everyone’s taste, but I like them and they’re better than all but the Lian li’s that I’m not sure I can justify £45 a fan on. I may well use my current ‘intake’ fans, that are actually RGB exhausts when positioned in the designed way on top of the case.

It’s a pretty minor issue, but having not built a pc in ages I want this one to be right. It’s bound to help with a few degrees in the case too.

Got them in just before tomorrows shipping window closed, they are now on the way, good work OcUK :)
 
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All sorted. The USB connector that was causing the original issue is no longer causing an issue. The new fans are now installed in the correct orientation and are also now detectable in Fan Control unlike the last lot. They also look even better, I'm almost tempted to add a set on the bottom.

wookiee87 said:
that particular connector is keyed one way, if you install it wrong you can damage the small plastic tab inside on the motherboard side and create a ground short which will stop any pc from powering on. Did you plug it back in and flip it the other way or leave it unplugged?
Click to expand...

I think you are right, it wasn't that obvious on the connector, but turning it around seems to have worked.

ooStevo said:
I see you've fixed it, what was the actual problem then? (Cba to read the whole thread)
*Did you get a Corsair case sticker with yours? I never got one. Spending £100 on a PSU they could at least have put a bloody sticker in there lol.
Click to expand...

See above. No, don't think I got a sticker.



Now for some gaming!
 
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CaptainRAVE said:
They also look even better, I'm almost tempted to add a set on the bottom.
Click to expand...

I couldn’t resist :D (usually run them in purple though)

I’ve settled on leaving the sound card in for now, but reducing the wiring by replacing the led strip on the bottom with another set of the Phantek fans. Love these things. I’ve also finally sorted the fan profiles, what I thought was registering as the exhaust fan in FanControl was in fact the CPU fans, oops. A bit of fiddling later we got there. Now for some Helldivers!



No wonder it was idling at 50C after gaming. The fan curve had the CPU fans off at that temperature.
 
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