POST Failure, New Open Case Build

[KensaCalamari]

My new PC build is failing to post and show any display output. I'm relatively sure it's not my monitor since the monitor works with my laptop using the same HDMI cable. Read through the stickied post about no post situations and I'm pretty sure I've covered all the bases, I've done the following troubleshooting steps:

- Updated BIOS to latest (F37B), from A620I AX Gigabyte Mobo. I did this first when I realized that the motherboard needed to be updated in order to support 9000 series Ryzen CPUs. Thought this would fix the error but no luck.

- After updating the BIOS (twice) I shorted the CMOS pins together while the PC was unplugged to do a CMOS reset.

- Tried HDMI and Displayport from Dedicated GPU, neither has display output. HDMI from the motherboard for integrated graphics has no luck either.

- Reseated RAM, PCIe Riser and GPU

- Did stuff in the stickied post, like trying one RAM stick, ensuring every power cable is connected, PSU should be plenty powerful for at least a POST, tested iGPU, cable securely connected, ect.

 

I think the biggest hint is this: It's been stuck in a boot loop forever. Whenever I turn it on, fans power up and the LEDs on the power button light up, but after about 2 minutes it randomly shuts down, then reboots back again. This behavior persisted even after two BIOS updates. I thought this was just RAM training, but it keeps occurring consistently in roughly 2 minute intervals, so I doubt it would be that.

Specs:

Ryzen 9600X

RTX 5080 PNY OC Edition

A620I AX Mini ITX AM5 Motherboard

2x16GB DDR5 RAM, Patriot Signature Line Series, 4800 MHz

Vetroo 850W SFX Power Supply

Xtia Xproto L case (v2)

[Sawa Takahashi]

Did you try to boot with ouly the PSU, the CPU and the RAM ? Remove everything else even the SSD and the PCIe riser cable.

I you can't reach the BIOS screen with that config, then you have a problem with one of the components (or the motherboard). If you can boot into the BIOS, then you can add one component then try to boot until you find the faulty component.

Good luck !

[podkall]

See if your motherboard came with speaker:

 

 

Because if you can plug in speaker, there's a chance it might be giving error code, if it gives error code it's usually that area's fault or somehow related with that area.

 

4 hours ago, KensaCalamari said:

tested iGPU

So the PC doesn't boot with iGPU either?

 

4 hours ago, KensaCalamari said:

integrated graphics has no luck either.

I see, so it's either power, RAM, CPU/MB, BIOS or something related to those components.

 

4 hours ago, KensaCalamari said:

trying one RAM stick

Did you wait for approx 2 minutes when trying single stick?

 

4 hours ago, KensaCalamari said:

ensuring every power cable is connected

And all connections securely and well seated?

 

(power and RAM either clicked or felt it was all the way seated?)

 

4 hours ago, KensaCalamari said:

Updated BIOS to latest (F37B), from A620I AX Gigabyte Mobo. I did this first when I realized that the motherboard needed to be updated in order to support 9000 series Ryzen CPUs. Thought this would fix the error but no luck.

What USB dongle are you using? Was the file in the USB at the very top no folder?

 

I'm guessing you followed the instructions how to use and put the file in USB.

 

• Did the motherboard confirm that the BIOS update was a success?

 

Did you try different BIOS version? Maybe F36?