Vectrex EXEC ROM BIOS Checksums B796, 7931, and 7ADB

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Vectrexer

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Aug 3, 2017, 9:59:17 PM8/3/17
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Vectrex EXEC ROM BIOS Checksums

Checksum 7931 :
First Release.
GCE ROM.
Title screen “GCE - ENTERTAINING NEW IDEAS”.
Vectrex with this ROM will have a buzz (unless manually de-buzzed).

Checksum B796 :
Second Release Release.
MB ROM.
Title screen "VECTREX”.
Vectrex with this ROM will have a buzz (unless manually de-buzzed).

Checksum 7ADB :
MB ROM.
Title screen "VECTREX”.
European Vectrex release.
Fixed version of the built in game Mine Storm.
No Buzz Vectrex.
Different Printed Circuit Board (PCB) as compared to other Vectrex.
Serial Number series 311xxxx.

phre...@gmail.com

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Jul 21, 2018, 4:30:21 AM7/21/18
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I just came across this while researching the veccy roms, I think this info might be incorrect. I have two different vectrex systems, one has checksum B796 and has the GCE title screen, the other has 7931 and says only vectrex.

Minestorm has different mine locations between the two as well as a side note. Unsure if the lv13 glitch exists on the 7931 but it does on the B796
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