Editing Atari 800 Troubleshooting Guide (section)

=== RAM Card Troubleshooting ===

# Power off and reseat all RAM cards.
# Try booting with only the minimum required RAM (usually two 8K cards in slots 1 and 2).
# Swap in known-good RAM cards if available.

{| class="wikitable styled-table"
! Symptom !! Likely Fault !! Resolution
|-
| No boot, blank screen || Bad or missing RAM card(s) || Test each card individually; clean edge connectors
|-
| Garbage or coloured blocks || Partially faulty RAM || Replace or repair faulty card; test with diagnostics cartridge
|-
| Boots with some cards, fails with others || Intermittent card or socket || Clean and retension socket contacts
|}