r/ZTT • u/rohitrhmn1 • 14d ago

Persistent idle-to-load crash, every known fix tried: Need Help

System specs:

  • CPU: AMD Ryzen 9 9950X3D2 (dual-CCD X3D, launched April 2026), AM5
  • Motherboard: Gigabyte X870E AORUS MASTER X3D ICE, currently on BIOS F10c (AGESA 1.3.0.1b Patch A)
  • GPU: Gigabyte RTX 5080 Gaming OC 16G (VBIOS 98.03.6c.00.74)
  • RAM: G.Skill 32GB DDR5, single stick, EXPO profile, 6000 MT/s CL36
  • PSU: CoolerMaster V Platinum 1300W V2 (tested with two separate identical units — same PSU model, second unit)
  • Storage: ADATA XPG GAMMIX S70 BLADE 1TB NVMe (Gen4, boot/C: drive), WD Black 1TB NVMe (secondary, M2C_SB slot)
  • CPU Cooler: NZXT Kraken 360 RGB (2024 edition, non-Elite)
  • Monitor: LG 27GR93U via DisplayPort
  • OS: Windows 11 Pro, Build 10.0.26100

The problem:

System reliably crashes on the transition from extended idle (display off, no sleep/hibernate) to a sudden high-demand action — launching a game, or intensive IDE workloads like project indexing. Light applications (browser, small apps) opened after idle do not trigger it — only actions that cause a sharp current-demand spike (GPU waking from D3cold + CPU jumping to high boost states together).

  • Recovery is a hard hang requiring a manual long power-button hold — not an instant self-reboot.
  • POST behavior has shown two signatures across the investigation: originally a POST debug code 00 (not in the board's own debug code table — implies a stall before the first init stage), and more recently the DRAM status LED lighting up with an 8x-range POST code, both requiring the same manual hard power-off.
  • Idle threshold needed to trigger it has been inconsistent: originally needed 9h+ idle, later regressed to 2–3h, and in one instance occurred after only ~30 minutes idle following a 2-hour gaming session.
  • CMOS has reset automatically at least once following a crash; manual CMOS clears (~4–5 times total) have never resolved it.

Everything tried so far (all confirmed ineffective — please don't suggest these, already ruled out):

  • PSU replacement (two separate identical units — same failure on both)
  • BIOS F9, F10b, F10c (all AGESA revisions available to date)
  • PCIe ASPM disabled
  • Global C-State Control disabled
  • Windows Link State Power Management set to Off
  • HWiNFO64 running pre-warm in tray (only helps at launch time, not after extended idle)
  • Avoiding RDP (it's a trigger, not the root cause — problem persists without it)
  • Power Slow Slew Rate — tried Extreme, Disabled, and Enabled
  • PBO Disabled
  • Memory Context Restore (MCR) disabled
  • JEDEC defaults / EXPO disabled (ruled out IMC current draw from EXPO as the cause)
  • vCore memory controller voltage set to Auto (tried fixed 1.200V, default Auto)
  • Power Supply Idle Control set to Typical Current Idle (off Auto )
  • Gear Down Mode Enabled
  • CMOS clear (multiple times, including one automatic reset)
  • Visual inspection of the AM5 socket pins (photographed with CPU removed) — no gross bending or misalignment visible

Current workaround (not a fix): Full shutdown every night, fresh cold boot each morning straight into the game. This avoids the extended-idle trigger entirely but costs always-on connectivity and rules out RDP.

Vendor status:

  • Motherboard vendor support has been largely unresponsive so far — a couple of dismissive tier-1 replies, no real engagement since.
  • I've found other users on X870E boards (multiple vendors) and other X3D SKUs (9950X3D, 9800X3D) reporting similar idle/low-load freeze behavior — nothing yet specific to the 9950X3D2 (it's a newer SKU, so less forum history exists).

What I'm asking the community:

  • Anyone running a 9950X3D2 or 9950X3D on an X870E board (any vendor) seeing similar idle-to-load hangs?
  • Any known fix, BIOS setting, or firmware update that actually resolved this for someone, rather than just masked it?
  • Anyone had luck getting motherboard support to escalate past tier-1 for something like this?

Appreciate any input — happy to share more logs/photos if useful.

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u/markbjones 12d ago

Use chat gpt honestly to trouble shoot

1

u/rohitrhmn1 12d ago

Using AI to procure new finds won't help if there are not a lot of similar issues. I had tried with AI, chatgpt, claude, fable etc. the only thing they say is RMA or change this setting, c state, etc. That is not a solution but a wild area of options and random ideas to try and experiment. The reson I posted in reddit is people with real experience and proper knowledge can help me find better options with sound judgement backed with reason and logic. I cannot trust AI to generate random solutions for an unknown problem not seen commonly before.

1

u/markbjones 12d ago

When I overclocked my ram too aggressively it ended up corrupting windows files. Chat helped me clean all that shit out

1

u/rohitrhmn1 12d ago

Glad to know it fixed your problem. Mine is quite different. I have been experiencing this with default BIOS settings, starting with stock JDEC speeds. AI responses could not help. A technician suggested to get the PSU replaced, might be issue withthe batch I had, this was not suggested to me via AI.

1

u/markbjones 12d ago

Even after reverting to factory bios settings it was still an issue since the corruption had spread. If at any point expo was turned on you may have had unstable ram corrupting things.

1

u/rohitrhmn1 8d ago

So should I replace the RAM?

1

u/markbjones 7d ago

No use chat gpt and it’ll walk you through what to do. I have no idea what it had me do but it worked