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ThorinOFlag for United States of America

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New Optiplex 740 keep hard locking for some reason

I have a new Optiplex 740 that I did a fresh install of Windows 7 Enterprise on. For some reason it just randomly hard locks, just becomes totally unresponsive. I am hoping someone can help me figure out the cause, below is more information.

Also most of the time when I leave for the day I lock my system. When I come by the next day in the morning I normally have to pull the power plug and start back up. I have configured all the power savings to never or least power saving.

- Nothing helpful in the event viewer
- All Windows Updates installed
- Updated Nvidia drivers (from Nvidia not Dell)
- Dell diagnostics are clean (didn't run the extended tests)
- All other drivers are the Windows 7 default ones
- Dell keyboard and mouse, no speakers or other USB devices
- Additional PCI NIC (Realtek RTL8139/810x Family FE)
- Run CCleaner to cleanup registry problems
- Running Trend Micro OfficeScan 10.5
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i_t

open up and see if the capacitors are bloating.  We've had this happen on a few of our dell orders.
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sfossupport
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SOLUTION
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nobus
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BIOS upgrade resolved the problem. System was also actually a 780.
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ASKER

Come to find out the BIOS update did not resolve the issue. The culprit was the 2nd NIC I had in my desktop. Since removing it I have not been locking up.