Possibly dead CPU or PSU

[100kPureHandsome]

For some context before I explain what's happening, here's the specs of the PC,

- Ryzen 5 5600

- Gigabyte Aorus b550m pro-p (bios rev f15a)

- 16gb 3200mhz G skill aegis 

- ROG Strix 6700xt 

- Super Flower Leadex III argb 650W Gold

- win 11 education edition 64 bit (was free back when I was in school)

- WD black sn750 500gb

- Samsung 970 pro Evo 500gb

I've included the model of the PSU as I think it's possibly causing the issue. It was bought in mid 2021 whereas everything else was bought in mid 2022.

To keep things short,

- It turns on, but doesn't post

- fans spin, however no lights on the motherboard or anything connected to the motherboard (psu has its own RGB)

- I've tried rearranging the cables plugged into the PSU and it powered on once, prompting me to reset my fTPM (which possibly leads me to believe it's a CPU issue) but not again. 

- issue persists when I remove the CPU power cable

- I've had the motherboard replaced recently as I thought that it was the issue, however, behaviour has been the same pre and post repair

- when turning the power supply on at the switch, the LEDs on my CPU block and pump/res light up for a split second.

 

The two things I can think that might've caused a possible issue is that;

For a few months, I was running ~1.3V for a 4.6ghz OC on the CPU but I toned it down to stock after a bsod one day. I can't remember the error message since it's been a while. Didn't have any more until leading up to the issue. 

Secondly, I went on holiday for roughly a month and accidentally left the PC running Minecraft (not doing anything, game was just open) whilst I was away. 

I'll include a vid of what I'm trying to describe is happening. Vid can be found here. Let me know if there's any other info I should be including.

Thanks in advance,

Max

[YoungBlade]

Based on the described symptoms, and the fact that you already tried replacing the motherboard, I would guess this is either a CPU or a memory issue.

 

Did you already try booting it with a single stick of RAM installed, both sticks one at a time, to see if either work independently?

 

Unfortunately, that motherboard doesn't seem to have debug LEDs, which could narrow in on the problem. That's just unacceptable on a B series board, IMO. Not your fault - that's on Gigabyte.

[Beerzerker]

The board has a few LED's that show activity and if none are coming on that usually means a bad board.
However I doubt that's the problem here.
When it first starts booting you should see the CPU LED light up for a sec during POST and then light up the RAM LEDs.

If the CPU LED never comes on that would indicate a bad CPU or if the RAM LEDs don't or come on and stay lit that's either a bad stick/set of sticks or a bad CPU.
Could also be a set of sticks not compatable with the board you have too but that's highly doubtful because from what I'm seeing you've been using it before with the same basic specs (Same board make and model) at the very least.
However I'm also understanding this is a different/replacement board and so far the system has never worked since you've installed it - Correct?

I do not assume how much you know so here's what I found and what to look for with this and it identifies where these LEDs you need to check are.
I'm assuming you may have already noted this but if not, here it is for reference.
LEDs 6 and 8 are for your RAM channels/sticks and 7 is for the CPU LED itself.

[YoungBlade]

3 minutes ago, Beerzerker said:

The board has a few LED's that show activity and if none are coming on that usually means a bad board.
However I doubt that's the problem here.
When it first starts booting you should see the CPU LED light up for a sec during POST and then light up the RAM LEDs.

If the CPU LED never comes on that would indicate a bad CPU or if the RAM LEDs don't or come on and stay lit that's either a bad stick/set of sticks or a bad CPU.
Could also be a set of sticks not compatable with the board you have too but that's highly doubtful because from what I'm seeing you've been using it before with the same basic specs (Same board make and model) at the very least.
However I'm also understanding this is a different/replacement board and so far the system has never worked since you've installed it - Correct?

I do not assume how much you know so here's what I found and what to look for with this and it identifies where these LEDs you need to check are.
I'm assuming you may have already noted this but if not, here it is for reference.
LEDs 6 and 8 are for your RAM channels/sticks and 7 is for the CPU LED itself.

Those are LED headers, not debug LEDs.

 

[Beerzerker]

Just going by what was showed but you are correct about that.

The CPU LED is probrably the same way....... One reason why I don't care alot for Gigabyte, that's just CHEAP to make it that way.

[100kPureHandsome]

55 minutes ago, YoungBlade said:

Based on the described symptoms, and the fact that you already tried replacing the motherboard, I would guess this is either a CPU or a memory issue.

 

Did you already try booting it with a single stick of RAM installed, both sticks one at a time, to see if either work independently?

 

Unfortunately, that motherboard doesn't seem to have debug LEDs, which could narrow in on the problem. That's just unacceptable on a B series board, IMO. Not your fault - that's on Gigabyte.

I've tried with various ram Configs, such as using 1 stick, switching the order and using two other sticks to no avail.

At least 5000 series ryzen chips are getting cheap cause they're last gen so I might even upgrade if the CPU is dead.

[100kPureHandsome]

37 minutes ago, Beerzerker said:

Just going by what was showed but you are correct about that.

The CPU LED is probrably the same way....... One reason why I don't care alot for Gigabyte, that's just CHEAP to make it that way.

From what I know, have read and seen for myself, there's no debug LEDs. The most I've done is put a multimeter on the speaker pins and listened for conductance when turning the PC on, although I was getting slightly desperate by then so I'm not sure if that was even a valid test. And no, I didn't get any conductivity upon powering it on

Edited September 20, 2023 by 100kPureHandsome
Added a minor note