Editing Atari Mega STE Troubleshooting (section)

=== TOS ROM ===

The Mega STE shipped with TOS 2.05 or TOS 2.06 in ROM. These are specific to the Mega STE / TT030 family and are '''not interchangeable''' with 520ST/1040ST TOS ROMs.

<templatestyles src="Template:StyledTable/styles.css" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+ '''TOS ROM Fault Table'''
|-
! Symptom !! Possible Cause !! Recommended Action
|-
| White screen, no activity || ROM not detected; bad contact in ROM sockets || Remove, clean pins with IPA, reseat firmly
|-
| Corrupted desktop or garbled text || Partially failed ROM; bit-rot in mask ROM || Test with known-good TOS 2.06 set. Consider EPROM replacement
|-
| Boot to desktop but crashes on GEM operations || Incompatible TOS version installed || Verify correct TOS version for Mega STE (2.05 or 2.06 only)
|}