Atari ST motherboard base 520 STFM working with 4 MB RAM upgrade FDD and PSU inc For Sale

Atari ST motherboard base 520 STFM working with 4 MB RAM upgrade FDD and PSU inc


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Atari ST motherboard base 520 STFM working with 4 MB RAM upgrade FDD and PSU inc:
$149.95

You are purchasing the bottom half of an Atari 520 STFM. This includes everything except the keyboard and the top cover. The motherboard has been upgraded to 4 MB of RAM using the Exxos ST upgrade (see screenshots and YAART memory test results). Note that this is a UK motherboard with the 1.00 TOS UK ROM and a 240V PSU, for convenience a UK style power cable will be included (US buyers will likely need a step-up transformer). Note that the metal shields have some rust, but the motherboard is working perfectly. The ACSI hard drive port has also been tested (but no hard drive is included).
Note that this is one of the earliest ST(FMs) with a single sided double density (360K)floppy disk drive (included and tested). A diagnostic disk with Sysinfo and YAART is included. The system will boot to TOS as is (assuming you have the proper video cable and step-up transformer), but you will need a keyboard to be able to do anything (the mouse connector is also on the keyboard on these Atari STF machines).
To reiterate, the sale includes:Atari 520 STFM bottom base (motherboard, PSU, floppy disk drive, bottom plastic)UK 240V mains to IEC cable3.5" SSDD disk with diagnostic utilities
No other components are included, you will need to provide your own keyboard, top case, and video cables.


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Documentation