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June 13th, 2025 11:04

optiplex 755

What I would like to know is can I upgrade my Dell OptiPlex 755 pc from 4gig ram to 16gig and what else do I need withstand the 16gig ram in my pc please 

3 Apprentice

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649 Posts

June 13th, 2025 11:44

Please can you confirm the Make Model and OS, along with any configuration details like touch screen, backlit keyboard, SFF or tower etc etc.

There seems to be a fair few options.

Seemingly the SFF is 2 x 2GB = 4GB max.

The Desktop is 4 x 2GB = 8GB max.

The Mini Tower is 4 x 2GB = 8GB max.

You can try Mr Memory, Crucial and Kingston for a better answer.

9 Legend

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14.4K Posts

June 13th, 2025 15:04

755 has 4 DIMM slots for DDR2 memory.  very expensive to get 4GB DDR2, and may not work any way.

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