Side quest. Help, my GPU is choking.

[Lenovich]

Hello, fellow adventurer! I have a side quest for you! It is an interesting challenge. Reward: + 1 rep + 2 technical skills

 

For one week, I must put my PC between furniture. There is no way to move the PC. I cannot remove the glass panel. (pets)

In this corner, the GPU stops. Help me, this is only GPU in village!

Ive done:

New GPU drivers

Open the glass panel a little.

I cannot do:

Replace the thermal paste.

Measure the VRM temperature.

Measure airflow

I can do:

Turn on or off the fans.

Remove fans 

Place fans in other places.

[Whatisthis]

Run hwinfo in the background with logging enabled and do whatever you’re doing that causes you to run into issues. Post the log file (should be a csv file) here.

[TeraSeraph]

I don't see any reason it should stop? have you tried using the computer while it isn't in such a confined space to see if it's indeed the thermals?

[Lenovich]

On 7/8/2023 at 4:46 PM, Whatisthis said:

Run hwinfo in the background with logging enabled and do whatever you’re doing that causes you to run into issues. Post the log file (should be a csv file) here.

 

000.CSV

[Whatisthis]

37 minutes ago, Lenovich said:

 

000.CSV 67.94 kB · 1 download

Your power supply is bad. 
 

Your 12v line is dropping under 10v. That will cause a crash every time.

[Lenovich]

14 hours ago, Whatisthis said:

Your power supply is bad. 
 

Your 12v line is dropping under 10v. That will cause a crash every time.

I just tested all lines with a multimeter; all +12 is normal. Then I started disconnecting all 12V fans, and finally I found the issue. You're not going to believe it. Built-in PC Case RGB lights cause a drop to +10V; without connected lights, everything is fine.

[Lenovich]

now the PCI-e line shows 11.7V–11.8V, which is nominal.

[Whatisthis]

1 hour ago, Lenovich said:

I just tested all lines with a multimeter; all +12 is normal. Then I started disconnecting all 12V fans, and finally I found the issue. You're not going to believe it. Built-in PC Case RGB lights cause a drop to +10V; without connected lights, everything is fine.

That’s the first I’ve seen that happen. Glad you found the root cause. Maybe a short in the rgb? That would drop the voltage.

[TeraSeraph]

1 hour ago, Lenovich said:

I just tested all lines with a multimeter; all +12 is normal. Then I started disconnecting all 12V fans, and finally I found the issue. You're not going to believe it. Built-in PC Case RGB lights cause a drop to +10V; without connected lights, everything is fine.

Wow, never would have called that. But then again RBG ram gives people a lot of headaches and errors.

[Lenovich]

9 minutes ago, TeraSeraph said:

Wow, never would have called that. But then again RBG ram gives people a lot of headaches and errors.

All four fans are connected. on the +12V line is 12.05V. tested RGB connector, it has a 1,2 MOm resistance.

[Lenovich]

On 7/16/2023 at 10:04 PM, Whatisthis said:

Your power supply is bad. 
 

Your 12v line is dropping under 10v. That will cause a crash every time.

 

I was wrong. found a real problem. Bad 24-pin PSU connector.

[TeraSeraph]

Just now, Lenovich said:

I was wrong. found a real problem. Bad 24-pin PSU connector.

That's a rare problem to have.