As I recall, the whole 6000 line of HP systems were subject to some kind of recall due to systemic failures.
Sounds to me like you either have bad RAM, or possibly a bad northbridge chipset. Either way, make this HP's problem.
I keep getting STOP blue screen errors on my HP pavilion dv6000. I've tried doing startup repair and memory diagnostic scans and disk checks. I still keep running into the MEMORY_MANAGEMENT or PAGE IN NON PAGED AREA errors as well as the STOP errors.
What can I do to remedy the situation?
If you need more information, please let me know!