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60,456 reviews

Apple PowerMac G4 667MHz Compatible Memory / RAM Upgrades

100% Apple Compatible Upgrades from the UK's Leading Supplier of Memory & SSDs

Not your exact model? See all Apple PowerMac models, or use our Apple Serial Number Search
Model Specifications 220,340 Apple Upgrades Supplied
Apple PowerMac G4 667MHz
Make & Model: Apple PowerMac G4 667MHz
Apple Reference: M5183     M7945B/A
Total Memory Slots:
3

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:
1.5GB

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: Non Upgradable
Important Notes:

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

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

The manufacturer may have installed the maximum RAM or the RAM slots may be inaccessible.
It is also possible that the supported RAM type is no longer available.

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
This short video will explain simply what ECC memory is and its main functions.
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.
2.5" SSD Installation Guide - Desktop / Server
Learn how to install a new 2.5
2.5" SSD Installation Guide - Laptop / All-in-One
Learn how to install a new 2.5
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