This is a working unit. It boots to the desktop. TOS 2.06, 4MB ram.
The top case is gone. The PSU opened and clean out.The HD spins up but will not boot. HDDriver does not see it. The HD interface card is good. It tested good in another MSTE.
The FD, and Epson SMD-480L, does not work. New battery holder with 2 AAA batteries installed. There is a transistor missing at U609 under the PSU. Thre is a missing t-cap between the TOS roms, it is not needed but probably should be addressed. The main board dusted, and all socketed chips pulled and reinserted.
The system passes all internal Atari Diagnostics cart tests for a MSTE. I received this unit with the PSU, FD, and HD loose in a crushed box. The top case was in hundreds of small pieces. There is a small baggy with some usable parts.It took a while to get it working to this level. Time to pass it along. The screen, keyboard, mouse not included. No guaranty real or implied.
The item "ATARI Mega STE Working no top case 1040ST/520/Falcon/TT030/STFM" is in sale since Wednesday, August 5, 2020. This item is in the category "Computers/Tablets & Networking\Vintage Computing\Vintage Manuals & Merchandise". The seller is "klund123" and is located in Livermore, California. This item can be shipped worldwide.