Editing Atari Mega STE Troubleshooting (section)

== Floppy Drive ==

Early Mega STEs shipped with a 720 KB DD drive; later units include a 1.44 MB HD drive. The HD drive requires TOS 2.06 for full support.

<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+ '''Floppy Fault Table'''
|-
! Symptom !! Possible Cause !! Recommended Action
|-
| Cannot read HD (1.44 MB) disks || DD-only drive fitted; TOS 2.05 does not fully support HD || Verify drive type. Update to TOS 2.06 if HD drive is installed
|-
| Drive not detected || AJAX floppy controller failure; cable fault || Check cable. Verify AJAX chip has clock and select signals
|-
| Intermittent read errors || Dirty heads; marginal PSU under motor load || Clean heads with IPA. Check +12 V stability during access
|-
| Continuous head seeking || Track 0 sensor failure; mechanical jam || Check optical sensor. Lubricate head carriage if stiff
|}