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AST RESEARCH, INC. TECHNICAL BULLETIN #0730 01-06-92
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AST SYSTEMS WITH PS/2 MOUSE PORT AND CH PRODUCTS ROLLER MOUSE
PROBLEM: When a CH Products Roller Mouse is attached to the AST PS/2
type mouse port , it will lock up the keyboard or display the
following error message after POST:
"Mouse not installed"
CAUSE: Incompatibility between CH Products Roller Mouse and AST's
PS/2 mouse port.
AFFECTED
SYSTEM: AST Premium 386SX-20 and Bravo 486-25 with the following
system board part numbers:
202382-002 and 202385-001
SOLUTION: This problem has been resolved with release 1.02.01 of the
keyboard controller, part number 237002-002 revision A.
Customers experiencing this problem should have their keyboard
controller upgraded.