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Sudden reboot under load.

Dear all,

It is my first time writing on this forum. I bought a pre assembled desktop pc to which I added a second hand graphic card. The relevant specs are: CPU: intel 8700K, GPU: msi armor gtx 1080ti, RAM: 16 GB, PSU: 650W gold rated. The GPU drivers are the latest from NVIDIA 416.81. I was not pleased with the performance or noise of the stock cooler of the GPU, so I attached a Arctic accelero 4 cooler on it. Unfortunately I did not realize mine is an extended PCB (have not dealt with desktops in a long time) and is not supported by the cooler. The die cooler is properly pasted and working, but the back-plate supposed to cool the other components could not be fastened properly. So I made an half hack by adding some heath sinks to the exposed VRM and VRAM chips under the cooler.

The computer works normally and can play light games, but when I try something heavy, like the new tomb rider or the Witcher 3, it shuts down after a while, order of 10 minutes. It does not produce graphical artifacts or performance dips, solid 60 fps at 4K, the PC just suddenly reboots. The core temps look very ok: 50 C for the GPU and something 60 for the CPU, fans are blowing.

How to I know f it is the VRAM overheating and not something else like the power supplier? Did I damage something permanently or I can save it reinstalling the old cooler?

Note that I run some CUDA codeand I can allocate up to 99% of the free memory (so around 10.4 GB removing what is used by the display), and write/read to it with a bandwidth of around 8.5 GB/s, so the VRAM seems to still be there.

I am more of a software than hardware dude, so any help to analyze or solve the situation will be very much appreciated! Cheers!


EDIT: int the event log, the failure is reported as this critical error:


Log Name: System

Source: Microsoft-Windows-Kernel-Power

Date: 18/11/2018 21:45:08

Event ID: 41

Task Category: (63)

Level: Critical

Keywords: (70368744177664),(2)

User: SYSTEM

Computer: DESKTOP-TRR31LG

Description:

The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

Event Xml:

<Event xmlns="http://schemas.microsoft.com/win/2004/08...>

<System>

<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />

<EventID>41</EventID>

<Version>6</Version>

<Level>1</Level>

<Task>63</Task>

<Opcode>0</Opcode>

<Keywords>0x8000400000000002</Keywords>

<TimeCreated SystemTime="2018-11-18T20:45:08.191914400Z" />

<EventRecordID>3941</EventRecordID>

<Correlation />

<Execution ProcessID="4" ThreadID="8" />

<Channel>System</Channel>

<Computer>DESKTOP-TRR31LG</Computer>

<Security UserID="S-1-5-18" />

</System>

<EventData>

<Data Name="BugcheckCode">0</Data>

<Data Name="BugcheckParameter1">0x0</Data>

<Data Name="BugcheckParameter2">0x0</Data>

<Data Name="BugcheckParameter3">0x0</Data>

<Data Name="BugcheckParameter4">0x0</Data>

<Data Name="SleepInProgress">0</Data>

<Data Name="PowerButtonTimestamp">0</Data>

<Data Name="BootAppStatus">0</Data>

<Data Name="Checkpoint">0</Data>

<Data Name="ConnectedStandbyInProgress">false</Data>

<Data Name="SystemSleepTransitionsToOn">1</Data>

<Data Name="CsEntryScenarioInstanceId">0</Data>

<Data Name="BugcheckInfoFromEFI">false</Data>

<Data Name="CheckpointStatus">0</Data>

</EventData>

</Event>

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4 opmerkingen:

Hi,

Try disabling the auto restart setting and check if there is an error message being displayed if it goes to shutdown which may give a clue as to what happened.

You will have to manually restart the computer after it shuts down

Also check in Event viewer for any events listed when this problem occurred, Critical, Error and Warning.

If you have Win 10 right click on Win start button, left side of Taskbar and select Event Viewer from the drop down box.

door

already done, there is no BSOD, just a sudden restart. I will check the events, thanks!

door

added the log of the error to the question.

door

Hi,

Just wondering, what is the listed 12V current (Ampere) output(s) from the PSU?

The specs for your graphics card state that a 600W PSU is required (I realize that you said that yours is a 650W so it should cope even though it is up towards to upper limit) and that it uses 250W which roughly works out at 20A on a 12V output supply feed.

You said that you "added a 2nd graphics card" (is it the GTX1080?). What are the power requirements for the 1st card (or is it onboard video?) that presumably is still installed in the PC?

Is the PSU able to handle both cards being installed, (even though one may not be using max power) along with the rest of the PC requirements? You may have to add up the power requirements (or use) of all the hardware in the PC and see if the PSU can handle it.

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under load its either the heat of your system (the system temp console can show you all of this) or a failing componant (short, RAM, something not plugged in a socket correctly) if it boots and runs then chances are that the PSU is fine (depends how it sounds when in use along with temp). with the limited infdo avaliable, i would say take it all apart (what you are comfortable doing) and chech everything is seated correctly and ensure that air is getting to places that need it.

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1 Opmerking:

The temperatures are fine, around 60 degrees for both CPU and GPU. It does immediately reboot without issue.

I noticed it happens much less frequently, but still happens, if I plug the PC directly to the wall rather than a multi socket, though I have used the same socket with 1000W appliances without issues.

The PC came preassembled aside from the GPU, that looks seated correctly. Ram is also plugged correctly, and I have run CPU only computations using all of it. How do I check if it is the RAM or VRAM? Could a overheating VRAM cause the issue? Though is it not supposed to cause glitches and artifacts rather than abrupt failure? I also run some GPU only test running CUDA code at 100% utilization, albeit for less than 5 minutes.

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giobaldu zal eeuwig dankbaar zijn.
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