Client's 15 month old ProBook 4730s is blue screening every couple of days, but the errors are strangely inconsistent. SMART, HDD, and RAM tested extensively and no issues reported. Fancy BIOS has Burn In tests that ran 15 passes without issue before I used MEMTEST which ran 5 passes with no issues.
I'm struggling a bit for ideas as to how to proceed? Client would rather I didn't erase the machine and set up from scratch. They have half a dozen machines of the same series with no issues.
BlueScreenView screen shot attached. Any ideas would be appreciated.