processor
- 68040 @ 28 / 35 MHz
- both version is an overclocked 25 / 33 MHz one
memory
- eight 30 pin SIMM sockets accept 32 MB
- supports 1 or 4 MB SIMMs 40-80ns (33 MHz model) or 60-100 ns (28 MHz model)
- accepts SIMMs in groups of four giving 4, 8, 16, 20, 32 MB RAM
- Fast Page, Static Column and Nibble mode SIMMs are supported
- burst RAM access
- off-board memory burst access if most recent Buster, DMAC and Ramsey chips are installed
notes
- if the motherboard is fitted with static column fast RAM the first chip must be replaced with the supplied page mode ZIP DRAM chip - this solves a bug in Ramsey and allows the board to do burst RAM access
- 68030 fallback mode works only with 25 MHz motherboards
- in 68030 fallback mode the onboard RAM is still useable but it's not contiguous with the motherboard RAM
- when used in an A3000T, a 74F08 chip must be inserted at location U103 on the motherboard
- FastROM jumper reserves 1 megabyte of memory for FastROM usage
- two floppy power connectors allow distribution of power to both floppy drives
Photo
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front side
front side
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back side
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