Threadripper build won't boot.

[johnkristian]

Hi

 

I've just put together my new threadripper 3960x build.

Other relevant HW:

Asus ROG Zenith II Extreme

Corsair Vengeance LPX DDR4 3200MHz 64GB (4x16GB)

7 year old Corsair AX1200i.

Nvidia GTX 1060 (temporary).

 

The PC turns on, and starts to go trough post codes.

After a few seconds, the pc shuts down, and the PSU shows a red status led.

It does not cut all the power to the mainboard. Built in RGB lights on the mainboard are still lighting up.

If I try to start it again, the same thing happens, but the pc shuts down even faster, and so on.

PC does not output anything on the screen .... it seems to randomly shut off while doing memory training.

 

I'm really at a loss here if this is a PSU or a mainboard / cpu issue.

The PSU has been used -very- little the 7 years I've had it, it's mainly been on the shelf.

I can't find any reliable information about the status LED and what it means.

But, the self test mode runs OK, IF I unplug all the cables (but does not run if motherboard cables are plugged in.... but I don't know if it should either).

 

I've tried to reseat the CPU and ram, with no change.

Everything that's not needed on the mainboard / power is disconnected.

 

Here is a video of what's happening:

https://www.dropbox.com/s/4wfn20x5ngmvwmr/2020-07-27 23.31.25.mp4?dl=0

 

Can somebody help?

[Poet129]

11 minutes ago, johnkristian said:

Hi

 

I've just put together my new threadripper 3960x build.

Other relevant HW:

Asus ROG Zenith II Extreme

Corsair Vengeance LPX DDR4 3200MHz 64GB (4x16GB)

7 year old Corsair AX1200i.

Nvidia GTX 1060 (temporary).

 

The PC turns on, and starts to go trough post codes.

After a few seconds, the pc shuts down, and the PSU shows a red status led.

It does not cut all the power to the mainboard. Built in RGB lights on the mainboard are still lighting up.

If I try to start it again, the same thing happens, but the pc shuts down even faster, and so on.

PC does not output anything on the screen .... it seems to randomly shut off while doing memory training.

 

I'm really at a loss here if this is a PSU or a mainboard / cpu issue.

The PSU has been used -very- little the 7 years I've had it, it's mainly been on the shelf.

I can't find any reliable information about the status LED and what it means.

But, the self test mode runs OK, IF I unplug all the cables (but does not run if motherboard cables are plugged in.... but I don't know if it should either).

 

I've tried to reseat the CPU and ram, with no change.

Everything that's not needed on the mainboard / power is disconnected.

 

Here is a video of what's happening:

https://www.dropbox.com/s/4wfn20x5ngmvwmr/2020-07-27 23.31.25.mp4?dl=0

 

Can somebody help?

Try testing every stick of ram individually.

[Dimondminer11]

17 minutes ago, johnkristian said:

Hi

 

I've just put together my new threadripper 3960x build.

Other relevant HW:

Asus ROG Zenith II Extreme

Corsair Vengeance LPX DDR4 3200MHz 64GB (4x16GB)

7 year old Corsair AX1200i.

Nvidia GTX 1060 (temporary).

 

The PC turns on, and starts to go trough post codes.

After a few seconds, the pc shuts down, and the PSU shows a red status led.

It does not cut all the power to the mainboard. Built in RGB lights on the mainboard are still lighting up.

If I try to start it again, the same thing happens, but the pc shuts down even faster, and so on.

PC does not output anything on the screen .... it seems to randomly shut off while doing memory training.

 

I'm really at a loss here if this is a PSU or a mainboard / cpu issue.

The PSU has been used -very- little the 7 years I've had it, it's mainly been on the shelf.

I can't find any reliable information about the status LED and what it means.

But, the self test mode runs OK, IF I unplug all the cables (but does not run if motherboard cables are plugged in.... but I don't know if it should either).

 

I've tried to reseat the CPU and ram, with no change.

Everything that's not needed on the mainboard / power is disconnected.

 

Here is a video of what's happening:

https://www.dropbox.com/s/4wfn20x5ngmvwmr/2020-07-27 23.31.25.mp4?dl=0

 

Can somebody help?

Ah classic bad mount on threadripper. Try reseating the CPU and see what happens. Because threadripper is such a large cpu it can have issues with memory and mounting 

[johnkristian]

Well, I tried with NO ram inserted .... same thing happend. 
But I can try. 

[johnkristian]

Just now, Dimondminer11 said:

Ah classic bad mount on threadripper. Try reseating the CPU and see what happens. Because threadripper is such a large cpu it can have issues with memory and mounting 

Read again. I have reseated it.

[Dimondminer11]

1 minute ago, johnkristian said:

Read again. I have reseated it.

oh sorry. Hmmmmm.

[johnkristian]

Tried with a single ram stick, two times, with two different sticks. No change.
The only thing that makes me unsure if this is a PSU error or not, is that the PSU doesn't cut off all the power.
But I don't have enough experience with the 1200i PSU to conclude about anything.

[johnkristian]

And please, watch the video.

[Flubbles]

I am still betting the CPU is the problem.  I would try reseatting it at least dozen times before moving on.  Threadrippers are known for being a pain to get a good connection.

[johnkristian]

Hm. 
I kinda doubt this is the issue -this time-
I KNOW all the youtubers and all forum users love to point this out.

And I know this is a favoured issue on large CPUs like threadripper and epyc.
Don't get me wrong, but I don't want to reseat the CPU more than necessary, I'm afraid to damage the pins on such an expensive motherboard.

However. 
IF this was the problem, shouldn't the time it takes for the PC to shut off be the same? Not twice as fast the second time?
And the red PSU led ... ? 

[johnkristian]

Hold on. 
Reseating the CPU one more time now 

 

[johnkristian]

So.
I reseated the CPU 3 more times.
I also found a Kingston value ram KVR21N15S8K2/16 kit I poped in there, just for the heck of it.

 

No change.

[III_ELITE_lll]

1 hour ago, johnkristian said:

So.
I reseated the CPU 3 more times.
I also found a Kingston value ram KVR21N15S8K2/16 kit I poped in there, just for the heck of it.

 

No change.

Does your board support your cpu out of the box?

[Kilrah]

BIOS up to date?

[johnkristian]

9 hours ago, III_ELITE_lll said:

Does your board support your cpu out of the box?

Yes.

[johnkristian]

5 hours ago, Kilrah said:

BIOS up to date?

Can't update bios when the pc won't boot, can I?

Am really sceptical about trying the flashback function, since the pc shuts off pretty quickly.

 

There is just one bios update for this board since it got released.

[III_ELITE_lll]

21 minutes ago, johnkristian said:

Can't update bios when the pc won't boot, can I?

Am really sceptical about trying the flashback function, since the pc shuts off pretty quickly.

 

There is just one bios update for this board since it got released.

This is a stupid question but do you have all your hardware installed?

[johnkristian]

So.
I have an update.

After trying a different PSU, the board doesn't shut off, so my AX1200i will be thrown ower my hedge this evening.
However. With the new PSU, the post sequence gets all the way to the end, with only a "post error" message on the display.

This guy has the -exact- same problem as I have, and even got his card RMA'ed an the second card he got showed exactly the same issues:
Part 1 (THIS IS NOT ME).

Part 2:

 

Since the PC now doesn't shut off, I've updated the BIOS/UEFI to the last version via the flashback button. No change.

 

I've changed out EVERYTHING except the CPU now.
Here is a video of the post sequence with the new PSU:
https://www.dropbox.com/s/7wggdk2iat29qjo/2020-07-28 16.49.02.mp4?dl=0

If you google this, it's a very common problem, and I haven't found anyone that has really solved this, except a very few (weird) exceptions. 
I've found threads where even asus support has given up.
So for me, this motherboard seems like a trash card. But Linus tested it, Anandtech has tested it ... it's asus flagship threadripper board, it SHOULD work.

[johnkristian]

3 hours ago, III_ELITE_lll said:

This is a stupid question but do you have all your hardware installed?

What do you mean? When trobleshooting something like this, it's best to run the card so bare as possible. So that's what I do.
I've only connected power cables and a GPU when troubleshooting this.

[III_ELITE_lll]

7 minutes ago, johnkristian said:

What do you mean? When trobleshooting something like this, it's best to run the card so bare as possible. So that's what I do.
I've only connected power cables and a GPU when troubleshooting this.

Ok that’s what your s’pose to do but I was wondering if you had all the necessary things plugged in and installed or it might not work. 

[johnkristian]

Well, yes, of course. 
It's been a while since my last build, but I'm not a complete noob  
I'm also one of those that use the manual frequently if I'm unsure.  

[johnkristian]

Just now, Rogerzz said:

• Motherboard standoffs installed in correct places?
  YES
   
• All cables firmly seated?
  YES
   
• Monitor connected to GPU?
  YES
   
• Double check front panel connections
  YES 
   
• Make sure no wires are touching the motherboard
  YES 
   
• Cleared CMOS?
  YES, also flashed it to newer version with flashback.

 

Have you even read the thread?  

[johnkristian]

7 minutes ago, Rogerzz said:

Check for bent socket pins.

Yes. Many times. Pins are flawless. 

[johnkristian]

I found that at least 3 pads on my CPU reflects light a little different, but they seem fine anyway.

Video:
https://www.dropbox.com/s/t8urp5zyqcp5w82/2020-07-28 03.18.12.mp4?dl=0

 

[johnkristian]

Just now, Rogerzz said:

I had the same issue on my current build, I had to take the motherboard out the case and test it with the stock cooler and it worked. That's really the last thing you can do.

 

 

It's a THREADRIPPER. It doesn't have a stock cooler.