GB200 Xid 150/154: Uptime and Firmware Checks
Check GB200 Xid 150/154 against uptime, firmware and reset timing. Distinguish the documented MSE uptime defect from post-reset communication failures.
NVIDIA documents an extended-uptime NVLink management microcode defect corrected in DGX GB200 NVL72 release 1.3.6. Xid 150/154 alone does not establish that defect or rule out hardware problems. Check the installed stack and whether the event follows long uptime or a reset.
- Root cause
- Unconfirmed until firmware applicability, actual event details and timing distinguish a documented defect from other faults.
- Recommended fix
- Preserve diagnostics before restarting or flashing firmware.
- How Denpex helps
- Denpex investigates GB200 Xid 150/154: Uptime and Firmware Checks using the evidence you provide or your connected workload collects. Earlier rank, host or application evidence is needed to distinguish an initiating failure from a downstream report.
What this failure is
An investigation of GB200 driver hangs with MSE-related events, using uptime and release-specific evidence to distinguish documented defects.
Is this what broke your run? Paste your log.
You're reading about GB200 Xid 150/154: Uptime and Firmware Checks. Paste your own traceback and relevant evidence for an investigation of your workload, with a next action or a specific missing fact. A reference entry does not establish your cause. No account or card for the free diagnosis. Review data handling before submitting sensitive logs.
Before uploading, review cloud data handling and local options.
Upload your log file. Large files are processed in your browser. Only selected evidence is submitted when you run diagnosis.
Why it happens (the mechanism)
The 1.3.6 release notes describe overflow handling in VBIOS NVLink management microcode after approximately 60 or more days. A separate post-reset MSE communication race is documented in the 1.3.10 and 2.0.0 notes. Similar event numbers do not make these the same failure.
What you'll observe
- A workload loses progress while the host records Xid 150 and a recovery-action event.
Common symptoms and what they mean
Check possible explanations against the incident evidence. A matching symptom alone does not establish its cause.
| Symptom | Possible explanation |
|---|---|
| MSE-related Xid 150 and Xid 154 with relevant uptime or reset history | Unconfirmed until firmware applicability, actual event details and timing distinguish a documented defect from other faults. |
Which systems are affected
- DGX GB200 NVL72 configurations matching the cited release advisories; other platforms require their own vendor release mapping
How to confirm this is the problem
Use this checklist to test the hypothesis against a small reproduction. No single line proves the root cause, so preserve the preceding events and compare one variable at a time.
- ✓Record the full Xid sequence, host and GPU identity, current firmware/driver stack and uptime before recovery.
- ✓Compare extended-uptime onset with release 1.3.6; separately check whether events occurred immediately after a GPU reset.
- ✓Read the actual Xid 154 action and the platform procedure. Its presence alone is not a cartridge replacement instruction.
Root cause
- Unconfirmed until firmware applicability, actual event details and timing distinguish a documented defect from other faults.
The fix and how to prevent it
The fix and the prevention pattern
The error explanation stays free. A free account adds available remediation guidance and saved history. Check the evidence and prerequisites before applying any recommendation to your workload.
Sign up free. Unlock the full analysisNo credit card. Daily allowance follows verified trust tier. Instant access.
Why the recommended fix works
Matching the documented defect and platform bundle avoids confusing an uptime defect with a different MSE failure or using a reset as proof of healthy hardware.
Diagnose this failure in VS Code
Select the traceback or open the failed terminal, then run Denpex locally to inspect matched failure patterns, supporting evidence and next checks without uploading the log. Verify recommendations against your workload before changing production.
Install the free VS Code extensionRelated failures to investigate next
Frequently asked questions
Questions engineers and on-call staff commonly ask about this failure.
Does Xid 154 prove the GPU must be replaced?
Is 1.3.6 the required firmware version on every GB200 server?
Don't just read the fix, diagnose your run
The encyclopedia explains documented failure patterns. Denpex investigates your logs, configuration and stack, shows the supporting evidence, and asks for missing details when needed.
Related Reliability errors
Sequence Length Imbalance Causing Distributed Training Stragglers
Reliability · high
Silent Data Corruption from GPU Hardware Faults Causing Loss Spikes and Model Divergence
Reliability · critical
NIXL Firmware Page Registration Fan-Out Triggers Host OOM Kills on HGX H200 and B200
Reliability · critical
MTTF Scaling Inversely with GPU Count in Large ML Research Clusters
Reliability · high