(solved) Faulty Build up

[Erik]

my PC build up hasn’t gone well : tiny mother card leds indicates a CPU and RAM dysfunctions. I cannot switch the tower off unless I use the PSU rocker switch itself. And the vidcard is not working properly (« no signal » message on the screen. Might be related to the CPU bug, though).

Mobo : x670E PRO RS
Rizen 7900
Ram Fury beast DDR5 2x32

It’s the same build up’than Guy - I’m’not brave enough to spec the build myself so I copied his ;-)

I’ve tried to move/remove the Sdram from one slot to another , double checked CPU was correctly placed.

Any help appreciated, thanx !

[Guy Rowland]

I wish I could remember some of my glitches, Erik - this stuff goes out of my head so fast.

One starter question now I think of it - have you flashed the motherboard to the latest BIOS? You download it from the ASrock website and put it on a USB memory stick. IIRC the instructions in the manual are pretty good.

EDIT - just to add that the BIOS update can be critical, newer versions support more CPUs and RAM.

[Erik]

Thanx Guy!
I made a rookie error : didn’t plug the CPU cable to the PSU - no instruction about it on the printed manual. It’s from the MoBo to the PSU, actually.
A tad rusted since my last build up was more than 10 years ago.
Now comes the soft side of things, flashing Bios, transferring data and the like…

[Guy Rowland]

Ah! Good news, it's wonderful when it's something like an air gap! Keep us posted on how it goes.

[Erik]

Thank you Guy, I will.