DATA_BUS_ERROR (0x0000002E)
What is this error?
A parity error in system memory was detected. This is almost always a hardware error: faulty RAM, bad CPU cache, or motherboard memory controller failure.
Common causes
- defective RAM module
- failing CPU cache
- motherboard memory controller issue
- incompatible RAM for the platform
How to fix it
- Run memtest86 to identify faulty RAM module
- test with one stick at a time
- check CPU cache with IntelBurnTest
Too many steps? Crashless can diagnose this automatically — checks your drivers, temps, VRAM, and 400+ known error patterns.
Get free AI diagnosis Detailed analysis
Bug check 0x0000002E (DATA_BUS_ERROR) indicates a parity error in system memory. This is a hardware error — software cannot cause it. The error means data was corrupted during transfer between CPU and RAM. Causes: faulty RAM (most common), failing CPU cache (rare but possible on degraded Intel 13th/14th gen CPUs), or motherboard memory controller issue. Fixes:
- Run memtest86 overnight — this WILL find the faulty module if it's RAM,
- Test each RAM stick individually by removing all others,
- Try RAM in different slots to rule out slot issue,
- If memtest passes with individual sticks but fails with all installed, the memory controller may be overloaded — reduce to 2 DIMMs,
- If memtest passes completely, run Intel Processor Diagnostic Tool to check CPU cache integrity,
- Check if RAM is on motherboard QVL (Qualified Vendor List).
When to seek help
If this error keeps happening after trying the fixes above, it may point to a deeper hardware or system issue. Consider professional help if:
- The crash occurs across multiple games or applications
- You see the same error after a clean Windows install
- Your PC is less than a year old (could be a warranty issue)
- You smell burning or hear unusual sounds from your PC
Or let Crashless do the deep analysis for you -- our AI checks drivers, temps, event logs, and 400+ known patterns automatically.
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