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-
- Recent Press release (Jan. 1989) dealing with Remm.sys and AST
- memory boards, AST premium 286 computers; includes specific
- recommendations concerning Remm.sys and Desqview.
-
-
-
- *** REMM.SYS INFORMATION HEADLINE ***
-
- EPG Products (Memory Boards):
- -----------------------------
-
- This is a breakdown of AST (EPG) Memory Products which require
- certain versions of the REMM.SYS Expanded Memory Manager. This
- is not to be confused with AST Premium Computer System's REMM.SYS
- drivers. This breakdown does not apply to AST Computer Systems.
-
- Product's Name REMM ASTEMM
- ----------------------------------
- Advantage/2-386 N/A 2.27
- Advantage Premium 4.30 N/A
- RAMpage/286 4.30 N/A
- RAMpage/2 4.30 N/A
- RAMpage/2-286 4.30 N/A
- SixPakPremium 4.30 N/A
-
-
- If you are using an application program which requires an older
- version of REMM.SYS (your software should state this in it's
- documentation), then you should use an older version - rather
- than the most recent version.
-
- SPECIAL NOTE: You can determine which products REMM.SYS is
- compatible with by its version number. For REMM.SYS versions 4.0
- and later, an ODD version is for AST EPG Memory Boards (i.e
- RAMpage, Advantage Premium, etc.). An EVEN version is for AST
- Premium Computer Systems (i.e. the Premium/286, etc.).
-
- REMM.SYS v4.3 is for AST Memory Boards
- REMM.SYS v4.2 is for AST Computer Systems
-
- This REMM.SYS identification strategy does not
- apply to REMM.SYS versions prior to 4.0.
-
- If any of these products are installed in an AST Premium computer
- system, then you should use the REMM.SYS that was intended for
- use in that particular computer.
-
-
-
- SYSTEMS (AST Premium Computers):
- --------------------------------
-
- The following are versions of REMM.SYS that have been released
- specifically for AST Premium Computer Systems. They are not
- intended for use with any AST Memory Board (except when the
- Memory Board is installed in an AST Premium Computer System).
- Released REMM's for the Premium/286 are:
-
- REMM.SYS v4.20 (EMS 4.0 Specification)
- REMM.SYS v4.00 (See Notes Below)
- REMM.SYS v3.50 (EMS 3.2 Specification)
- REMM.SYS v3.00
-
- NOTES: If you are currently using REMM.SYS version 4.00, than you
- should consider updating your system to the latest version
- (specifically, version 4.20). This way, you can be assured that
- you are using the most up-to-date version that AST has available
- (REMM.SYS version 4.20 is fully LIM-EMS 4.0 compatible).
-
-
-
- AST Premium Workstations use the same REMM.SYS versions that the
- Premium/286 does. However, it is designed around LIM EMS v4.0,
- and thus will not work with any versions of REMM.SYS prior to
- v4.0. So, if you have an AST Premium Workstation, you should be
- using the most current version of REMM.SYS that is compatible
- with LIM-EMS v4.0 (i.e. REMM.SYS v4.20).
-
- AST Premium/386 computer systems do not use a REMM.SYS device
- driver. But rather, it uses a driver called ASTEMM.SYS that
- converts 80386 Extended memory (linear) into Emulated EMS 4.0
- Expanded memory. Thus, REMM.SYS should not be an issue on a
- Premium/386 computer system.
-
- AST FASTboard/386 accelorator boards for the Premium/286 must be
- used with REMM.SYS version 4.27. This board can not use the
- general Systems or EPG REMM drivers, do to the special nature of
- the board.
-
-
-
- REMM.SYS 4.X AND DESQVIEW 2.XX
-
-
- Users of DESQview 2.01 (or above) may experience system lock-up
- when using a version of REMM.SYS of 4.10 (or above). The lock-up
- occurs when running an interrupt-intensive application such as a
- serial communications program.
-
- The reason that this particular combination causes this symptom
- lies in the fact that the LIM 4.0 functions are being executed in
- software, requiring a large amount of processing time. This
- amount of overhead becomes critical when processing time must
- also be devoted to servicing the stream of interrupts generated
- by a communications program. Any application that must devote a
- great deal of time to both expanded memory operations and serial
- communications will eventually be unable to keep pace and cease
- to function.
-
- It is recommended that those users who operate in this
- environment andexperiencing problems, replace the 4.xx version of
- the REMM.SYS driver with a 3.xx version. For AST Systems
- products, version 3.50 of REMM.SYS is recommended. For AST
- board-level expanded memory products version 3.10 of REMM.SYS
- will operate in this environment.
-
- Those users with expanded memory hardware which fully supports
- the LIM 4.0 Specification, (i.e., AST RAMpage Plus/286 or AST
- Premium/286 using Advanced FastRAM), will not experience any of
- the difficulties outlined here.
-
- Please note: It advisable to verify that the correct DESQview
- configuration and operation procedures are followed. Appendix E
- in the DESQview Manual contains detailed information about
- running communications programs.