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Studio 1558, BSODs, lockups
Got a refurb Studio 1558 that was having lockups that didn't generate any dumps or error reports, just power faults and unclean shutdown on reboot. Wiped it and did a clean install of Win7, installed all the drivers, but problems persisted. Flashed to most recent BIOS, started getting bluescreen errors and minidumps in addition to the lockups (may I was actually able to get them now?). Those are attached.
Drivers are the most recent available up on Dell's Site, most recent graphics on ATI discrete card. Windows Update is current, also running MSE as AV. At one point I thought Creative X-FI MB Software was causing problems, but uninstalling had no effect. Memtest did 10 passes, no errors. Primed and used other burn ins for over 12 hours each, all calculations came back clean. Lockups tend to happen while playing flash videos, although it's happened twice while gaming, three times during browsing.
Going to get in touch with Dell in a bit and see what they say about possible hardware problems. As far as I can tell only ntoskrnl and ntkrnlmp are throwing errors, not any drivers, so I might have some kind of odd hardware errors somewhere.