Dell Optiplex 755 SFF - RAM Upgrade

Solution
Yes, that will work fine. It complies with specs. You realize you will only have 3.5GB of RAM available using 32 bit windows, not 4GB. It's just the way the limitation on 32 bit Windows works. If your unit came with a 64 bit capable processor and you upgraded to Windows 7 64 bit you would be able to use 8GB (7.5GB usable) on that unit. Either way, good luck.
Yes, that will work fine. It complies with specs. You realize you will only have 3.5GB of RAM available using 32 bit windows, not 4GB. It's just the way the limitation on 32 bit Windows works. If your unit came with a 64 bit capable processor and you upgraded to Windows 7 64 bit you would be able to use 8GB (7.5GB usable) on that unit. Either way, good luck.
 
Solution