STOP 0x0000002E
DATA_BUS_ERROR
A hardware memory error was detected on the system bus — almost always faulty or mismatched RAM, or failing hardware.
Worth knowing: This is a hardware-signal code — software fixes rarely apply.
Likely causes, most common first
- Faulty RAM
- Failing motherboard or cache
- Hardware damage or incompatibility
How to fix it
1. Test the hardware moderate
- Run MemTest86 from USB for at least 4 passes.
- Test one RAM stick at a time.
- If RAM tests clean repeatedly, have the board/CPU checked.
The four parameters on the blue screen
Windows shows four hex numbers with this stop code. Here's what each means — our analyzer decodes them automatically from your dump file.
| Parameter 1 | Virtual address that caused the fault |
| Parameter 2 | Physical address |
| Parameter 3 | Processor status register |
| Parameter 4 | Faulting instruction register |
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