PowerSpec G765 (9800X3D / 5080) – random hard freezes and instant reboots at idle, 2 days old
Picked up a G765 from Micro Center this week. Getting hard freezes and sudden resets, almost always at idle or light load (never while gaming so far).
Specs:
- Ryzen 7 9800X3D, Gigabyte B850 Gaming WiFi6, BIOS F11b (AGESA ComboAM5PI 1.3.0.0a)
- 2x16GB TeamGroup T-Force Vulcan DDR5-6000, running XMP 1 (not EXPO)
- RTX 5080 (Gigabyte), driver 32.0.16.1742
- T-Force TM8FFE002T 2TB NVMe
- Stock PowerSpec PSU (unbranded?)
- Windows 11 26H2
Symptoms:
- Two failure modes: (1) full hard lock where the clock freezes, no mouse/keyboard, have to hold power; (2) screen goes black and it drops straight to the BIOS splash and reboots
- ~5 incidents in the first 10 hours, including one ~60 seconds after boot and one overnight while idle
Logs:
- Every event is Kernel-Power 41 with BugcheckCode 0
- No minidumps (dumps are enabled), no WHEA errors, no nvlddmkm/TDR events, no disk/NVMe errors, no problem devices in Device Manager
Tried so far:
- Reseated both RAM sticks, the GPU 12V-2x6 and the 24-pin
- BIOS: Power Supply Idle Control set to Typical Current Idle. This cut it to one reset in ~15 hours (3 AM, idle), but it didn't fix it
- Next: disabling XMP to run at 4800
Questions:
- Anyone else with a G765 / B850 Gaming WiFi6 seeing idle resets? Did a BIOS update, RAM swap or PSU swap fix it?
- Is the XMP-only T-Force kit a known issue in these builds?
- Does anyone know which OEM makes the G765's PSU and its wattage/rating?
- If XMP-off doesn't fix it, did Micro Center swap the unit or repair it?
Obviously the thing is under warranty but I'm trying to avoid a return/exchange if it's something I can fix.
Thanks!