help Fatal1ty AB350 Gaming-ITX/ac & R7 3800x compatibility

[cTurtle98]

I am upgrading my sff pc.

 

I have the ASRock Fatal1ty AB350 Gaming-ITX/ac motherboard and a ryzen 5 1600

https://www.asrock.com/mb/AMD/Fatal1ty AB350 Gaming-ITXac/index.asp#Support

 

I am trying to upgrade to the 3800x

the 3800x is on the cpu support list

 

this is the bios information for the mobo

 

so I updated the bios to to p5.7 and made sure the system posts with the 1600 installed and it does

then i replaced the cpu with the 3800x and when I press the power button the cpu fan turns on for a second and the gpu fan turns on then the cpu fan turns off but the gpu fan is still on. the heat sync got hot enough without the fan running that I unplugged it because it was painful to touch. 

 

so I put the 1600 back in and it posts almost instantly.

then I clear the cmos with the jumper and unplug and replug the battery and put the 3800x back in.

same outcome.

 

so then I updated to bios 6.0

booted the 1600 and it posts and goes into my OS

put the 3800x in and the fans stay on this time but still no post.

just half speed fans and no video for half an hour till i unplugged it.

 

so then I put the 1600 back in and upgraded the bios to 6.5

it posts with the 1600 and gets to the OS

I put the 3800x in and this time it keeps the fans at full speed but still no post.

left it like this for half an hour and still no post.

 

this motherboard doesent have any form of postcodes.

theres no speaker header, theres no status led

there no mention of debug in the manual

 

I dont have another motherboard to test the new cpu.

I was going to buy the x570 itx tb3 from asrock and then it went on sale at newegg and by the time I got off work and could get on to buy it it was sold out.

I really want x570 and thunderbolt so I can make my sffpc portable with a dock for my desk

 

is my cpu bad?

does asrock's QVL cpu list lie?

any advice how to test further?

[mariushm]

Put the 3xxx cpu and leave the pc do its thing for up to 5 minutes , even if it seems like nothing happens or that the board reboots.

If no luck after more than 5 minutes .. .maybe reset bios (remove battery and unplug power supply from mains) and try other things.

 

[-rascal-]

32 minutes ago, cTurtle98 said:

I am upgrading my sff pc.

 

-- SNIP --

 

The motherboard supports the 3800X, and the VRM can handle the CPU at stock settings.

 

Are you using the heatsink that came with the Ryzen 1600, or the using the heatsink from the 3800X?

Keep in mind the Ryzen 1600 is a 65W TDP chip, while the 3800X is 105W.

 

Have you check that the BIOS actually got SUCCESSFULLY updated?

Are you able to get into the BIOS and confirm that you are on version 6.0, 6.5, etc?

[cTurtle98]

1 minute ago, -rascal- said:

 

The motherboard supports the 3800X, and the VRM can handle the CPU at stock settings.

 

Are you using the heatsink that came with the Ryzen 1600, or the using the heatsink from the 3800X?

Keep in mind the Ryzen 1600 is a 65W TDP chip, while the 3800X is 105W.

 

Have you check that the BIOS actually got SUCCESSFULLY updated?

Are you able to get into the BIOS and confirm that you are on version 6.0, 6.5, etc?

I forgot to take a picture after the update to 6.5 but it had the same outcome

boots into the BIOS and the OS with the 1600 installed and the new BIOS installed

 

I am using the noctua NH-L9a cpu cooler

[-rascal-]

8 minutes ago, cTurtle98 said:

I forgot to take a picture after the update to 6.5 but it had the same outcome

boots into the BIOS and the OS with the 1600 installed and the new BIOS installed

 

I am using the noctua NH-L9a cpu cooler

 

Oh okay, cool.

Does the system remain stable while idling in the BIOS?

 

So the Noctua NH-L9a....remember how I said the 3800X is a 105W TDP chip...

I am wondering if the 3800X is just overheating, and throwing the system into safety shut-off mode.

Quote

....

While it provides first rate performance in its class, it is not suitable for overclocking and only recommended for CPUs with up to 65W TDP (Thermal Design Power). 

....

 

Are you able to try with the included cooler that came with the 3800X?

[cTurtle98]

so I switched which hdmi port on my gpu I was plugged into and now its booting

 

I was using the middle one before

 

it used to just output to whatever one was plugged in bot now it only wants to output to the bottom one

[cTurtle98]

26 minutes ago, -rascal- said:

 

Oh okay, cool.

Does the system remain stable while idling in the BIOS?

 

So the Noctua NH-L9a....remember how I said the 3800X is a 105W TDP chip...

I am wondering if the 3800X is just overheating, and throwing the system into safety shut-off mode.

 

Are you able to try with the included cooler that came with the 3800X?

 

so I got the system to boot by plugging into a different gpu output for whatever reason

 

I an running a `pacman -Su` and its only at 50c

[-rascal-]

8 minutes ago, cTurtle98 said:

so I switched which hdmi port on my gpu I was plugged into and now its booting

 

I was using the middle one before

 

it used to just output to whatever one was plugged in bot now it only wants to output to the bottom one

 

5 minutes ago, cTurtle98 said:

so I got the system to boot by plugging into a different gpu output for whatever reason

 

I an running a `pacman -Su` and its only at 50c

 

Some fine troubleshooting there.

That is just weird, why that would happen...

 

The PCI-E slot lanes are provided by the CPU...

It might have something to do with minor changes between 1st-Gen and 3rd-Gen Ryzen, and that motherboard's topology / trace-routing.

Who knows...