Hi everyone,

I've previously been a fan of troubleshooting on Reddit, but after dealing with my PC randomly crashing for almost 10 months at this point, I am hoping that coming here to the Dell forums is "calling in the big guns."

To start off I have checked and verified that all Drivers, BIOS, and Firmware are up to date.

My issue is that after putting together my PC from mostly used parts (only my SSD and GPU power cable are new) I am continuously struck by an issue of my PC screen going dark on random occasions with my only remedy being to hold the power button and hard-shutdown (I never get a blue screen or error message.)

After the shutdown, my logs report nothing unusual other than "hard shutdown at this time by holding the power button." This issue occurs during very specific stress tests listed below, while gaming, and even during very idle operations like web browsing.

Why I am here on the Dell forums: Oddly enough my PC will not crash even during the most strenuous stress tests such as the one I did today running Prime95 + MSI Kombustor Furmark/Unigen Heaven/UnigenValley for almost a combined total of 2 hours - with no errors. The odd thing is, however, I can replicate the crashes 100% of the time by running the Dell SupportAssist GPU Stress Test.

Pre-built Dell T3610 .

• Intel® Xeon® E5-1650 v2 Processor (Six Core HT, 3.5 GHz Turbo, 12 MB)

• 4x4GB DDR3 1600 MHz and 1866 MHz RDIMM ECC/Non-ECC

• EVGA NVIDIA GeForce GTX 1060 3GB

• 685W Stock Power supply

I frequently have the exact same issue happen where seems like the GPU crashes mid game or sometimes even idle

• Monitors connected to Display Port and HDMI both lose signal

• Mouse and Keyboard are still powered however they lose connection (e.g. my Corsair Keyboard defaults to the onboard color configurations and the Caps Lock no longer registers with the light)

• Sound output still works (e.g. Spotify will continue playing music, will continue onto the next song)

• Video output only resumes after holding the power button and restarting the PC

While I have had this issue rarely while idle or low stress tasks like browsing the web, stress testing the PC has some interesting results

• Prime95 + Unigen Valley - Never Crashed on Extreme - Temps Maxed out near 72 degrees C

• Prime95 + Unigen Heaven - Never Crashed on Extreme - Temps Maxed out near 72 degrees C

• Prime95 + MSI Kombustor Furmark - Temps Maxed out near 72 degrees C

• OCCT GPU and CPU Stress Test - Never Crashed

• User BenchMark - Never Crashed

• League of Legends - Crashes very frequently (even sometimes on the launcher and getting ready to enter a game) - Temps have been very low during some of these issues

One way I seem to be able to replicate the issue with almost 100% certainty is running the Dell "SupportAssist" GPU Stress Test. It seems that this specific stress test hits the GPU exactly where it weak and causes the crash.

Based on these tests I have a hard time determining if the culprit could be my GPU, Power Supply, or neither. It is very confusing to me that I can run concurrent GPU and CPU stress tests with no issue yet crash idle and almost every time I try to play some video games.

I have also looked into the potential of the power supply being too small, however based on the below PSU calculator, I believe my stock 685W that came with the T3610 should be sufficient.

OuterVision PSU Calculator part list

Type Item

Motherboard	Desktop
CPU	1 x Intel Xeon E5-1650 v2 3500 MHz Ivy Bridge-EP
CPU Speed	3500MHz
CPU Vcore	1.2V
Memory	4 x 4GB DDR3 Module
Video Card Set 1	1 x NVIDIA GeForce GTX 1060
Core Clock	1506MHz
Memory Clock	2002MHz
Storage	1 x SSD
Storage	1 x SATA 7.2K RPM
Other Device	0 x USB 3.0 Device
Keyboard	1 x Gaming Keyboard
Mouse	1 x Gaming Mouse
Fan	1 x 80mm
Computer Utilization	16 hours per day
Gaming/Video Editing/3D Rendering Time	4 hours per day
Monitor	2 x LCD 27 inches
Load Wattage	411W
Recommended Wattage	461W
Amperage	+3.3V: 10.2A, +5V: 11.3A, +12V: 26.7A
Recommended UPS Rating	1000VA
Generated by OuterVision PSU Calculator 2019-10-11 02:29:50