Editing Acorn Archimedes A5000 (section)

=== Memory Architecture ===

The A5000's memory system balanced performance with cost:

{| class="wikitable styled-table" style="width:85%; text-align:center;"
! Configuration !! SIMM Type !! Slots Used !! Total RAM !! Expansion Path
|-
| 2 MB model || 2× 1MB 30-pin || 2 of 4 || 2 MB || Add 2 SIMMs
|-
| 4 MB model || 4× 1MB 30-pin || 4 of 4 || 4 MB || Replace all
|-
| 8 MB upgrade || 4× 2MB 30-pin || 4 of 4 || 8 MB || Maximum
|}

The use of industry-standard 30-pin SIMMs reduced memory costs compared to proprietary modules. The MEMC1a controller supported up to 8 MB directly, though RISC OS could only utilize 8 MB total including VRAM.