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January 25th, 2026 00:35
Dell XPS 13 9350 Lunar Lake (258v) with constant crashing using TB3 eGPU (JHL7540/DSL6540) (WHEA Event 17)
I have been having consistent windows crashing with WHEA_UNCORRECTABLE_ERROR when trying to play games/run 3d benchmarks using my Thunderbolt 3 External GPU Enclosure using the JHL7540 Thunderbolt controller (Same issues on my other eGPU using the DSL6540) I have tried both an AMD and NVIDIA gpu in the enclosure with the same exact instability. Event Viewer shows a constant stream of WHEA 17 Correctable Errors while the eGPU is idle, which consistently leads to a crash when trying to run a game or benchmark.
The only fix I have found so far is running bcdedit /set {current} pciexpress forcedisable in CMD, which completely fixes the crashing. But this "fix" also disables sound, NPU and sometime iGPU so is far from ideal.
Hope someone can help me find a more ideal solution as the one that works now makes the device unusable.
Alfie173j
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January 25th, 2026 23:28
My laptop is the same model as urs, and I used to suffer from the same issue. In short, change ur enclosure to something that equips with asm2464pd controller. Lunar lake laptops generally have serious compatibility issues with intel thunderbolt 3 controller. No way to fix but upgrading the enclosure to USB4 / TB4 controller. Hope this helps
HNaam
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January 26th, 2026 09:47
@Alfie173j I have confirmed that atleast 2 other Lunar Lake devices work perfectly with the older TB3 controllers (Surface pro 11 for business & MSI Claw 8 AI+). Both battery powered devices so I highly doubt they have ASPM disabled globally, there must be some vendor driver or BIOS configuration that is fixing the issue.
Also why do I have to accept a newer device being less compatible with Thunderbolt devices than my 4 year old Dell 9315 which ran this same eGPU flawlessly.
Dell needs to investigate this issue and provide some sort of firmware/driver fix