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Dell Optiplex 755 [Mini-Tower] Compatible Memory / RAM Upgrades

There are currently no memory upgrades available from Mr Memory for the Dell Optiplex 755 [Mini-Tower].

Not your exact model? See all Dell Optiplex or 700 Series models, or identify your model with our ScanMyPC App

Model Specifications

271,631 Dell Upgrades Supplied
Dell Optiplex 755 [Mini-Tower]
Make & Model: Dell Optiplex 755 [Mini-Tower]
: Please check this is correct.
Total Memory Slots:
4

This is the total number of Memory / RAM slots in your computer.

The number of "available" slots will depend on what is already installed.

To locate and check the number of empty slots please follow the installation guides and videos from the Support menu above.

The example below shows 4 empty desktop memory slots.
Maximum Memory:
8GB

This is the maximum total amount of Memory you can install in your computer.

This amount is usually divided by the number of slots to give the maximum per slot.

Below are two examples, they may not apply to your particular model.


Example 1

128GB Maximum with 4 Slots
Upgrade using 4 x 32GB modules

Example 2

32GB Maximum with 2 Slots
Upgrade using 2 x 16GB modules
Installed Memory: See how much memory you have installed
Model FAQs:

How much memory can I install?
The Dell Optiplex 755 [Mini-Tower] supports up to 8GB of memory across 4 memory slots.
Important Notes:

You can install different sized modules together in your machine. For example: Installing 2 x 8GB alongside 2 x 4GB will be 100% compatible.

The Mr Memory upgrades below are 100% Compatible for your Dell.

Mr Memory recommends you install modules in pairs for Dual-channel performance - View Dual-channel Memory Video.

There may be different Versions of this Model (e.g. MT, SFF, AIO). Please check that you are ordering for the correct Model, as the Memory does vary.

Sorry, there are no Memory upgrades available for this model.

The manufacturer may have installed the maximum amount of memory supported, the memory slots may be inaccessible, or the memory may be soldered to the motherboard.
It is also possible that the supported memory type is no longer available.

SSDs

UPGRADE YOUR STORAGE WITH A FAST SSD

View all compatible SSD upgrades for your Dell Optiplex

Play our educational HD videos

WATCH 30+ VIDEOS
ScanMyPC - Mr Memory
Short video showing you how our Free Memory Scanner Tool will scan your Windows Computer.
Customer Care & Support
Short video explaining our Customer Care & Support practices at Mr Memory.
Our Expert Knowledge
Our Memory Experts know everything there is to know about Memory/RAM. Here is a bytesize look into our knowledge.
Memory Upgrade Benefits
Short video about why you should upgrade your Computer's Memory and some of the main benefits.
ECC Memory Explained
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What Are SSDs?
This simple video will explain what SSDs are and the difference with them and Hard Disk Drives. It will also look at the benefits of using them.
How To Seat Memory Correctly
In this video we show you in a little more detail how to correctly seat the Memory (RAM) in your desktop or laptop computer.
How We Test Memory
This video shows our RAM Tester machine in action. All our memory is fully tested prior to Dispatch.
How To Install Memory In Your Desktop
See how easy it is to upgrade the Memory (RAM) in your Desktop Computer with our simple 2 minute guide.
How To Install Memory In Your Laptop
See how easy it is to upgrade the Memory (RAM) in your Laptop Computer with our simple 2 minute guide.
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