Had an Intel DG33TL based Windows 10 PC give us some problems earilier this week.  After testing and swaping multiple things, turns out it might just be something on the mainboard.  It was giving memory errors, but memory checked fine using MemTest 86+ in other systems.  It would not wake up from sleep mode, Windows would just freeze, sometimes with artifacts on the screen.  Replaced the system with another DG33TL, basically same specs just 2.93GHz processor instead of 3.00GHz.  Office didn't have any documents or contacts to move over, just basically desktop PC used with in-house app and web surfing.  Easy swap, like those :)

We had another DG33TL board so we replaced the board using same memory, Intel E8400 CPU, CPU fan, 8gb DDR2 memory, SATA drive, case and power supply.  Only item different is the mainboard.  MemTest86+ ran 26 hours with no problems, so booted up Windows and no issues so far.  Sleep mode is working, had to re-active Windows but since it was digital license, simple click and it was done.  Still in the burn in phase, but everything looks good.  

Do not see any visible signs of issues with the other DG33TL board, was hoping for a bad cap but if there are any they don't look it.   Might remove the caps and check them but probably not really worth the time.  I think it has something to do with frequency.  Slower FSB processors are not giving any memory errors.  So far tried Intel Pentium E5400 and Intel Core 2 E4500, no issues.  Have an Intel Core 2 E8600 we can try just need to pull it.  Ahh the things we do when we have down time.