[SOLVED] Peripherals (keyboard, mouse, monitor) not working

[Oxymiocysu]

Hey guys,

I was away from home for a month and left my PC off the entire time. When I got back home I turned my PC on and let it idle for about 5 minutes while I got settled in. After 5 minutes, without any activity on the PC, I heard an audible click sound and the entire PC turned off.

When I tried turning the PC back on the system had power, component lights were on, but no peripherals were working and the fans weren't spinning.

I tested the peripherals on my laptop and all worked fine there.

I replaced the motherboard and had to get a new CPU and water cooler to fit. After doing that the fans started working but still nothing with the peripherals. I tested each existing sticks of ram individually thinking maybe it would be one of those, no luck there either so I tried brand new ram. Still nothing. Removed the sound card in case that was somehow the issue, it's not. Removed the GPU and tried the monitor on the new integrated port with the same result.

This is practically a brand new system. The only things that haven't been changed are the PSU, chassis fans, and case.

When I turn the PC on everything seems fine, no beeping. You can hear the water cooler start, all fans are running (including PSU), neither the CPU or motherboard get hot.

After all this, could it just be the PSU?

CURRENT COMPONENTS -
MB - Prime H370-plus (BRAND NEW)
CPU - Intel i5-9600K (BRAND NEW)
CPU COOLING - LIQMAX III (BRAND NEW)
GPU - ASUS GTX 1070 8GB
RAM - GAMMIX D30 - 16 GB DDR4 (BRAND NEW)
PSU - Corsair AX-1200 bronze
Everything is compatible.

 

[rgd1101]

motherboard have the bios version to run i5-9600k?

 

[Nerdy Nerd]

Sounds like PSU to me as you seemed to have did a detailed technical run though. It could be something shorting but I think PSU, so try that. Often times when PSU goes out, it takes out other components like the motherboard, which sounds like it might be the case.

 

[Oxymiocysu]

Update - I did just buy and install a new PSU and same issue still. What now?

 

[MeO123]

Seems like fried/damaged ports on MOBO... but you said it was same for GPU, are you connecting via DVI or HDMI? Did you tried to connect GPU in diffrent MOBO?

 

[Oxymiocysu]

I tried with two different motherboards with and without the card, same result.
I'm using DVI, why?
It's not just the graphics that's the issue, the keyboard and mouse are also not responding.

 

[rgd1101]

again, did it have the bios version to run 9th cpu?

 

[MeO123]

I am just asking if you checked components on diffrent mobo like CPU GPU PSU etc... that could eliminate what cause problem... for me is faulty mobo, and if it's on warranty you should replace it.

 

[Oxymiocysu]

I can't get to the BIOS at all, so I'm not sure.

The only 'old' components left at this point are the drives and GPU. Everything else has been replaced within the last 5 days.

 

[rgd1101]

take the mobo to a shop to get it flash to the latest
or
replace the mobo with one that work with 9th gen right out the box with z390 chipset

 

[Oxymiocysu]

Thanks, I'll take it in today and get it flashed. That makes complete sense.

 

[Oxymiocysu]

Update - Flashing was the key, thanks! I decided to use the extra parts to make another PC.