Puzzling motherboard issue - cannot post

[XB]

hi,

Wondering can anyone help.

I am currently using Asrock X570-i motherboard with Ryzen 7 3800X + 2 x 16gb 3200mhz CL14 + RTX 3080 Ti FE.
I suspect one of my ram channel is spoil cuz system cannot post when I insert both Dram. It just goes into the on/off mode cycle.

Anyway I tested with one ram each and was able to log into windows, where system shows 16gb of ram and I was able to activate XMP for that single slot in bios. Both ram was tested out like that and both worked individually. Oh by the way bios is updated to latest for the Asrock.

So that's why I suspect one of the channel is spoil (the one further away from the CPU). I wanted to RMA but I will need a new motherboard to replace the Asrock while its away for few months.

So I got a Asus ROG Strix B550i, transfer everything over and powered on....yellow led and cannot post. Everything is working, fans, GPU is spinning, lights etc. Transfer my system back to Asrock and system work with single 16gb ram.

I brought the B550i to service ctr and bios was updated to latest (2407 I think) and technician was able to go into bios. So new board was fine and in working condition.

I went back home and try it out on my system.. same result.. with yellow led. Try with one ram, change new PCI-E 4.0 riser cable to try, try on older 2400mhz 4gb ram x 2. All fail.

I borrowed a brand new Asus X570i board to try and the result is the same: yellow led and cannot post into bios at all.

Both new motherboard is working
Both my ram is ok
GPU working (with Asrock motherboard)

What can be the cause/s of this problem? Can enlighten me please? Million thanks

 

[soltrdc]

Yellow LED on which indicator?

 

[XB]

Yellow LED on which indicator?

On both Asus ITX motherboard which indicate its DRAM issue.

Boot - Yellow Green led
VGA - White led
CPU - Red led
DRAM - Yellow led

 

[wwenze]

Looks like CPU memory controller spoil

 

[XB]

Looks like CPU memory controller spoil

On both the new Asus ITX board?

 

[wwenze]

On both the new Asus ITX board?

In your CPU

 

[XB]

In your CPU

But I can post and go into window with the same CPU on the Asrock board...

 

[soltrdc]

why not just borrow another CPU to try and see whether indeed is the CPU?

 

[wtfh4x]

But I can post and go into window with the same CPU on the Asrock board...

With one stick of ram though. Your initial problem also didn't occur with one stick of ram.

 

[86technie]

- Ensure the RAM you are using is compatible with the motherboard.

https://www.asrock.com/mb/AMD/X570 Phantom Gaming-ITXTB3/#MemoryMS

Some RAM sticks may not be compatible.

- Send the RAM for checking.

 

[tsteo77]

It's a really strange problem...maybe it's due to 7th month ghost festival.

 

[XB]

In your CPU

I think wwenze , might be right.

I google and came across similar issues like mine reported on various forum.

 

[XB]

- Ensure the RAM you are using is compatible with the motherboard.

https://www.asrock.com/mb/AMD/X570 Phantom Gaming-ITXTB3/#MemoryMS

Some RAM sticks may not be compatible.

- Send the RAM for checking.

My ram is on the QVL list of the Asus X570i. I did try with a slower older DDR4 2400 mhz ram and its the same result.

Asrock I can XMP for the single slot ram.. so both ram is working.

 

[XB]

why not just borrow another CPU to try and see whether indeed is the CPU?

Might be hard to borrow. I was thinking of going SLS and get one of the repair shop to verify / confirm my CPU is faulty.

 

[XB]

It's a really strange problem...maybe it's due to 7th month ghost festival.

Thats my tot initially too...haha. Juz suay lah

 

[XB]

So I went SLS to check out my CPU and both set of rams at PC Care & Solution. Nigel tested with a B550 board and all my items work and posted into bios.

Come back home and slot everything back onto the Asus X570i and same ****...cannot post. Try it out on the new Asus B550i same issue. This time its showing white led light, indicating its VGA.

Transfer back to my Asrock X570i - same issue, only 1 slot of ram work but at least can load into windows.

I am at wits end....

 

[kimsix]

So I went SLS to check out my CPU and both set of rams at PC Care & Solution. Nigel tested with a B550 board and all my items work and posted into bios.

Come back home and slot everything back onto the Asus X570i and same ****...cannot post. Try it out on the new Asus B550i same issue. This time its showing white led light, indicating its VGA.

Transfer back to my Asrock X570i - same issue, only 1 slot of ram work but at least can load into windows.

I am at wits end....

for mitx can bring the boards to nigel test?

tiagong sometimes, casing and board touch and got short possible? or your heat sink washer not install probably? you use mitx casing?

i think asus boards need to connect a fan to main cpu fan header to boot

 

[86technie]

So I went SLS to check out my CPU and both set of rams at PC Care & Solution. Nigel tested with a B550 board and all my items work and posted into bios.

Come back home and slot everything back onto the Asus X570i and same ****...cannot post. Try it out on the new Asus B550i same issue. This time its showing white led light, indicating its VGA.

Transfer back to my Asrock X570i - same issue, only 1 slot of ram work but at least can load into windows.

I am at wits end....

Which parts did you bring to SLS?
CPU, RAM and motherboard?
Graphic card?

If you are using RTX 3080 Ti FE,
- What is your power supply?
- Have you tried without PCI E Raiser cable?
Some cable may not work due to quality issues.
- Have you tried posting with another graphic card?

 

[SkyShroud]

Boot with only cpu, ram and gpu
The rest don't connect

 

[soltrdc]

I am at wits end....

tiagong sometimes, casing and board touch and got short possible? or your heat sink washer not install probably? you use mitx casing?

Try this. I encountered before where due to a faulty (short circuit) RGB hub, the system can't boot.