Hi everyone,
I’m having a serious stability issue with my ASUS ROG Strix G614J (i9-13980HX + RTX 4070 Laptop GPU + 16GB DDR5), and after days of testing I’m still stuck. I could really use some expert advice.
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► How it started
A few months ago I switched from Armoury Crate to G-Helper to control fan curves and performance modes.
Performance felt strange after that, so I played for a while with CPU Boost enabled in G-Helper.
After some time, games started crashing and the system began acting unstable:
• weird clicking issues in Windows (UI stops responding)
• black screens on boot (fans spin, LEDs turn on, then system shuts off)
• occasional Windows freezes
• internet browers (edge, chrome) crashing
Switching back to Armoury Crate didn’t fix the issue.
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► The symptoms
What’s strange is:
✔ When I use only the iGPU, everything is perfectly stable.
No freezes, no crashes.
✔ When the RTX 4070 is enabled, League of Legends crashes:
• sometimes after 5–10 minutes
• sometimes after 30–60 minutes
• sometimes the client crashes, sometimes the game itself
• occasionally Windows UI becomes unresponsive
• rare black screens during boot
• random Windows freezes
✔ Other games (so far tested only briefly) have not crashed yet
But I haven’t played them for long sessions, so I’m not 100% sure.
The issue appears most consistently in League of Legends, but I’m certain something deeper is wrong on the hardware or PCIe level.
Even after clean driver installs, PCIe settings changes, and BIOS toggles, the issue remains.
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► What I have tested so far
✔ RAM tests
• MemTest86 (multiple passes) → 0 errors
• tested both RAM sticks individually → crashes still happen
✔ GPU tests
• FurMark stress test (30+ min) → stable
• OCCT VRAM test (30 min) → 0 errors
• but OCCT behavior is strange: tests sometimes run mainly on iGPU even when selecting RTX only
✔ Driver tests
• Used DDU in Safe Mode
• Installed Nvidia driver without GeForce Experience / Nvidia App
• Reset graphics settings
→ Crashes still happen when RTX is active
✔ MUX / GPU mode
• Tried: Optimus / Standard / Ultimate / dGPU only
• In dGPU only: RTX usage still fluctuates strangely, iGPU sometimes shows activity
• Performance doesn’t fully switch over reliably
✔ Storage check
• CHKDSK scheduled (no filesystem errors)
✔ Temps
GPU and CPU temperatures are normal.
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► Windows Event Viewer error
I randomly saw this warning when the RTX 4070 is active:
WHEA-Logger
Event ID: 17
A corrected hardware error has occurred.
Component: PCI Express Root Port
Error Source: Advanced Error Reporting (PCI Express)
Device:
PCIVEN_8086&DEV_A700&SUBSYS_14D31043&REV_01
| | | FRUId | {00000000-0000-0000-0000-000000000000} |
| | | UncorrectableErrorStatus | 0x0 |
| | | CorrectableErrorStatus | 0x1 |
| | | HeaderLog | 00000000000000000000000000000000 |
| | | PrimaryDeviceName | PCI\VEN_8086&DEV_A70D&SUBSYS_14D31043&REV_01 |
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► What I think might be happening
Based on the WHEA-Logger Event 17 and the fact that the iGPU works perfectly, I suspect a PCIe communication problem between the CPU and the RTX 4070, such as:
• faulty MUX switch
• unstable PCIe link
• broken GPU power rail / VRM
• damaged PCIe controller inside the CPU (HX chips are sensitive, and I used Boost for weeks)
• motherboard-level PCIe routing issue
But I’m not sure.
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► Any help appreciated
If anyone has seen similar PCIe / WHEA Event 17 issues on ROG Strix laptops or with the 13980HX, I’d love to know what solved it.
I’m trying to determine whether this is:
• a GPU failure
• a motherboard failure
• a CPU PCIe controller issue
• or something software-related that I overlooked
Thanks in advance for any insights.
