Question New build won’t boot, no power indication

[Reel9898]

Hi. This is my second ever build so I’m still a noob.

I’ve tried everything in here https://gamesreq.com/troubleshootin...entifying-issues-with-psu-motherboard-or-cpu/

I’m building with the x870 ice, Ryzen 9 9950x cpu, Corsair h150i elite capellix aio, Corsair vengeance DDR5 6400 32gb (I have two 32gb sticks but trying to boot with one), Kingston kc3000 m.2. 1tb and Corsair RM1000x psu. No gpu as I’m waiting for 5000 series to release.

I’m getting nothing when trying to boot, no lights, no debug codes, no display. I’ve done everything on a grounded esd mat whilst wearing a wrist band. I’ve tried inside and outside the case. The standoffs are correct and nothing is touching the back of the motherboard when it’s in the case. I’ve reseated the cpu, no film on it anywhere. I’ve reset the cmos several times and tried the reset button on motherboard and Q-flash on the IO. Even tried a new cmos battery.

Currently plugged into motherboard are the 24 pin, 2x 8 pin atx (I’ve tried one), cpu fan header and hdmi.

I’ve tested my psu with a tester and all voltages are correct. I can’t try a different cpu or ram as I don’t have any but I would expect the leds to tell me if there was a fault with them. I’ve also tried letting it memory train for around 5 mins but there’s no sign of life.

Any help would be appreciated as right now it seems like the board is dead and I’ve already sent one back for the same reason. Any questions I’ll reply asap.

Manual for motherboard https://download.gigabyte.com/FileL...1005_e.pdf?v=9141322d8c7b97a3f236a50024bdf1d9

 

[boju]

Same thing with previous board, makes me wonder if it's something simple missed like case power button connector not connected to the correct motherboard pins?

The cables used came with Corsair yeah? No other cables from a different psu in the mix?

 

[Reel9898]

Same thing with previous board, makes me wonder if it's something simple missed like case power button connector not connected to the correct motherboard pins?

The cables used came with Corsair yeah? No other cables from a different psu in the mix?

It’s currently outside the case so I’m using the onboard power button and also trying the power pin short

Cables are original with new psu

 

[boju]

Only other thing i can think of atm, besides being unlucky a second time with doa board, is checking modular power cables are fully plugged both ends.

 

[Reel9898]

Same thing with previous board, makes me wonder if it's something simple missed like case power button connector not connected to the correct motherboard pins?

The cables used came with Corsair yeah? No other cables from a different psu in the mix?

Only other thing i can think of atm, besides being unlucky a second time with doa board, is checking modular power cables are fully plugged both ends.

Yeah I’ve tested each cable and tried every connection. But thank you. I’ve emailed support but it’s gigabyte sooooo.

 

[Reel9898]

Photo of the board and the psu tester with 24 and 8 pin plugged in

https://imgur.com/a/zw5J4q4

View: https://imgur.com/a/zw5J4q4

 

[Reel9898]

Could anybody offer any suggestions please?

 

[Ralston18]

Use a multimeter to test the PSU.

FYI:

https://www.lifewire.com/test-a-pow...to,is properly set for your country. See More.

AND

https://www.lifewire.com/power-supply-voltage-tolerances-2624583

Any voltages out of tolerance make the PSU very suspect.

Plus I noted in the posted image some "L.L" readings which likely indicate a PSU failure.

From the first link:

" If any voltage reads "LL" or "HH" or if the LCD screen doesn't light up at all, the power supply isn't working properly; you need to replace it."

 

[Darkbreeze]

I’ve tried everything in here https://gamesreq.com/troubleshootin...entifying-issues-with-psu-motherboard-or-cpu/

Forget that nonsense, it's almost less helpful than AI answers. Try all of these.


Double check all of the no-POST checkpoints, FIRST.

"No POST", "system won't boot", and "no video output" troubleshooting checklist

"No POST", "system won't boot", and "no video output" troubleshooting checklist This checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to effectively troubleshoot your problem. 1.Did you...

forums.tomshardware.com

Manual test PSU. PSU testers are usually really not helpful other than to determine the unit can power on and that no-load voltage is present. Does not mean it "works" or doesn't have protection problems.

Bench test motherboard.

How To - Motherboard bench testing

Finding the problem through bench testing If you are here then it’s likely you have encountered a serious hardware issue and have been unable to resolve it using the standard no-POST troubleshooting procedures. If you have not yet attempted to resolve your issues using the no-POST...

forums.tomshardware.com

 

[Darkbreeze]

Any help would be appreciated as right now it seems like the board is dead and I’ve already sent one back for the same reason.

And, did they EXPLICITLY TELL YOU that yes the board was bad and here is a brand new one, or did they just send you back the same board? Did they even SAY anything, because having gone through MANY, MANY RMA processes in the past I know for a fact that often they don't tell you a damn thing, they just send you back a replacement or the same board with no information as to any findings. Sometimes, often in fact, they'll just send you another board that might have the same or different/worse problems that is supposedly "refurbished" or "tested". In my experience, these kinds of replacements are NOT "refurbished" or "tested". I've seen at least ten or twenty, conservatively, cases on this forum alone where the "replacement" board was either also no good or was in fact the same exact board.

If what you got returned was not in a brand new condition, shrink wrapped motherboard box with no signs at all that it has ever been opened or used, I would be very suspect of this fact.