The Apple Power Macintosh G5 1.8 PCI uses memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

Need Assistance? Please call and speak with one of our expert technicians at 800-240-8577 or US 404-935-4048 to verify exact system specs before ordering.
Memory Type
Base Memory 256 MB
Upgrade Slots 4
Maximum Memory 4 GB
Maximum Module Size 1GB
CPU & Chipset 1.8 GHz PowerPC 970fx (G5) 1
Bus Architecture ~
Manufacturer Part Numbers
  • M9555LL/A
  • A1093 (EMC 2020)
  • PowerMac9,1

Released On: October 19, 2004. Discontinued On: June 13, 2005

We currently do not offer any upgrades or upgrades are currently unavailable for purchase online. Please contact us to order upgrades for this device.


Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
No Part Information Currently Available