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Author Topic: Bios chip WMS 550?  (Read 98 times)

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Offline cdlale

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Bios chip WMS 550?
« on: June 01, 2026, 02:18:56 pm »
On my 550/cpuxt board has bios ver 1..1312. Should be running -2000?
Thanks
Cecil
My machines are a
Homemade Cherry master slot
Homemade Williams 360 with 550 and IGT parts
Bally 742a
Bally Alpha M9000 Lucky Wheel
Pachislo slot machine
IGT PE+ Slant top Set up as a progressive
Mills 25 cent slot machine

Offline cdlale

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Re: Bios chip WMS 550?
« Reply #1 on: June 04, 2026, 12:08:55 pm »
Will this work on my 550/cpunxt board?
https://www.ebay.com/itm/135024669695?
« Last Edit: June 14, 2026, 04:50:13 pm by shortrackskater »
My machines are a
Homemade Cherry master slot
Homemade Williams 360 with 550 and IGT parts
Bally 742a
Bally Alpha M9000 Lucky Wheel
Pachislo slot machine
IGT PE+ Slant top Set up as a progressive
Mills 25 cent slot machine

Offline hsjerry

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Current Collection
--------------------
Bally Alpha S9E 5 Reel (Originally S9C 3 Reel)
Bally Alpha S9E running on an A2 Conversion
WMS BB2e

Offline cdlale

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Re: Bios chip WMS 550?
« Reply #3 on: June 14, 2026, 11:30:47 am »
Here some pics of the board I have.
cdlale
My machines are a
Homemade Cherry master slot
Homemade Williams 360 with 550 and IGT parts
Bally 742a
Bally Alpha M9000 Lucky Wheel
Pachislo slot machine
IGT PE+ Slant top Set up as a progressive
Mills 25 cent slot machine

Offline hsjerry

  • Guy who likes slots... that's it.
  • NLG Member 501 to 10,000 Posts
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  • Posts: 508
  • Reputation Power: 38
  • hsjerry Is working their way up.hsjerry Is working their way up.hsjerry Is working their way up.
  • Gender: Male
  • Fun, but not civilized.
Re: Bios chip WMS 550?
« Reply #4 on: June 14, 2026, 12:39:50 pm »
Okay so BIOS 2000 should be able to work as long as you put the EEPROM in correctly


Current Collection
--------------------
Bally Alpha S9E 5 Reel (Originally S9C 3 Reel)
Bally Alpha S9E running on an A2 Conversion
WMS BB2e

 

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