Issues upgrading ram in OptiPlex 755

molson3530

[H]ard|Gawd
Joined
Jul 25, 2004
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I am trying to upgrade the ram in my mother's OptiPlex 755 but cannot get Windows (Vista Business) to boot after adding the extra ram. It originally had 2x1GB DDR2 and I added an additional 2x1GB. All 4 sticks show up in bios and seem to be working properly. When I try to boot into Windows I get the screen that says there is a problem with startup and if I want to boot into safe mode, last known good config, or boot normally. Windows will not boot after selecting any of these options. I have reseated ram and am at a loss. Any advice or suggestion is much appreciated.
 
does it boot when you take the new ones out? are they the same type, speed etc? check all your sata/power cables in case you knocked something loose.
 
does it boot when you take the new ones out? are they the same type, speed etc? check all your sata/power cables in case you knocked something loose.

It boots normally when I take the new ones out and they are the same speed as the original ram.
 
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