The impossible problem of no display and no usb power. Try me, I tested everything.... help!!!

[Alex_Labgon]

Sooo, i just take a quick look of the snapshot that Speccy took.
I found quite a lot of info that I’m not sure if it would be quite right to be publish on ethernet.
Either way, if something is really important tell me and all give you the info of the snapshot

Bad pc
PSU: 750W 80 plus - corsair
Motherboard: ASUS ROG b550-F
SSD: M.2 NVMe 1.4 Samsung 980 250Go
HDD: Seagate 1To
RAM: Corsair Vengeance LPX 16Go DDR4 3600
Case: NZXT H710i White
Thermal paste: Graphite Pad by Innovation Cooling
CPU: AMD Ryzen 7 3800X 8cores
CPU cooler: AMD’s CPU included fan → LED Wraith Prism
GPU: ZOTAC RTX 3060 OC 12Go GDDR6
(Same as the first post)

My good pc
PSU: EVGA supernova 500W 80 plus gold
Motherboard: ASUS ROG b550-F
SSD: M.2 NVMe 1.4 Samsung 980 500Go
HDD: Seagate 500Gb
RAM: Corsair Vengeance LPX 16Go DDR4 3600
Case: Corsair SPEC-05
Thermal paste: Graphite Pad by Innovation Cooling
CPU: AMD Ryzen 5 3600X 8cores
CPU cooler: AMD’s CPU included fan
GPU: ASUS GeForce GTX 1660 Super OC 6Go EVO

[PeterOz]

There is nothing in speccy that can give away who or where you are.
It might show your first name - might not

[Bruce]

people baulk at the IP addresses contained in Speccy.
these are of no use to us as they are LAN IP’s (inward facing), rather than WAN IP’s (outward facing).
in Speccy, I would see your PC is on 192.168.1.20 and your default gateway is 192.168.1.1 (as examples).
these do nothing if I was a hacker trying ‘to get in’.
Speccy doesn’t even show your ISP’s WAN address which would be the only thing I can ping.

[PeterOz]

Try 1 stick of ram only in slot B1
If no bios try another stick in B1
Pic attached

[Alex_Labgon]

Hey Peter, thanks for the tips.
Unfortunatly i tried playing with the RAM multiple time and even only on RAM in “B1”
It hasn’t work…

[PeterOz]

Last option I can think to do is flash bios

[Alex_Labgon]

i checked asus support website yesterday and followed the step to flash my bios
and it didn’t work

Im burn this PC lol

I cant think of the problem could be now

[Alex_Labgon]

Im only running CPU, GPU, PSU, MB, RAM, and the two pin powerswitch of the case
bare minimum
I get no warning beeps
but I’m thinking of testing the cpu cause the PSU, MB are new, and I swap gpu with my PC and his gpu work in my pc
reseating ram and swaping it make nothing but they work all in my pc
I can only imagine the cpu to be the problem now idk
I might have to restest it

[PeterOz]

Flash of the bios did not work or
Bios update worked and no difference to booting

[Alex_Labgon]

I flash the bios using a usb key and the flash bios button on the mb
the flash bios led had light up
but the problem persist

also weird that the MB he had first (before I replace it with the same model but new to troubleshoot) is in my PC without any change and work good

[PeterOz]

swap psu
I know yours is new BUT

[Alex_Labgon]

Well when the problem occur, he had a 650W psu

After all the testing I though it would be the psu

I bought a 750W psu and install it myself and still nothing

[PeterOz]

24 pin power or 8+4 pin power

[Alex_Labgon]

MB power?

[PeterOz]

Yes ATX Power