Question Realbench stops working

Nico_202

Prominent
Feb 20, 2019
19
0
510
has anyone else had this issue?
I am overclocking my i5 8600k, and running Realbench 2.43, and when I run it in stress test I opens a third window (LuxMark v2.1) this has a pane that lists only my GPU (and not my CPU), and after about 2-3 minutes I get a windows error (Luxmark-x64.exe has stopped working). Real bench continues to run and completes without finding any instabilities.
so my question is, is the overclock stable, and the program at fault, or is the overclock unstable?
if I run RealBench with the check-box next to my GPU UN-CHECKED, it complies correctly also
Thanks
 

Nico_202

Prominent
Feb 20, 2019
19
0
510
CPU: intel i5 8600k
Mobo: Gigabyte Z390 Aorus Pro
Ram: 32GB Corsair vengeance LPX 2166 MHz
SSD: Corsair MP150 M.2 NVMe 480GB (System) Sandisk Ultra 480 GB SSD (Data)
GPU: Gigabyte RTX2060 OC Gaming Pro
PSU: EVGA 1000w SuperNova G3
Case: Cooler-master Mastercase H500 Mesh
Cooling: Cooler-master ML240L