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- (c) Copyright 1989-1999 Amiga, Inc. All rights reserved.
- The information contained herein is subject to change without notice, and
- is provided "as is" without warranty of any kind, either express or implied.
- The entire risk as to the use of this information is assumed by the user.
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- Amiga 2000 Motherboard Revision History Revision
-
- Rev # Board Change
-
- 3.9 First 2 layer board, dealer demo only.
-
- 4.0 Last 4 layer board, has German part number.
-
- 4.1 Video fix, first 2 layer board released to consumers.
-
- 4.2 Fix for HITEK type keyboard, by removing two capacitors
- (the first character typed on the HITEK keyboard was
- lost).
-
- 4.3 New Gary (MOS) chip used, pull-up resistors added to
- support it.
-
- 4.4 Production improvements (previous modifications now
- included in layout), cost-reduction.
-
- 4.5 Pull-up on U605 (74ALS245) to support certain
- accelerator cards with the Signetics buffer chip.
- Kickstart 1.3 ROM used.
-
- 6.0 New layout for 1 meg RAM chips.
-
- 6.1 Fix to clean up RAM-retention by adding a reset IC
- (RAM-retention occasionally caused a guru on powerup
- though the system would start normally if the left
- mousebutton was pressed). Agnus 8372 used.
-
- 6.2 Fix to get certain expansion boards to work correctly
- with 256Kx4DRAMs and Agnus 8372.
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