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Processor Cards System Resource Card DASD Module Gearbox Power Supply Supply Software for the Gearbox 7568 Common Devices 7568 Mounting (very incomplete!) 189-155
IBM GEARBOX MODEL 800 (7568-040/150)
The mean nasty guy that outbid me for the D40 pictured below is Tony Ingenoso This is his pictorial of it- The Gearbox 800 lives! Tony's First Impression
Reference and Driver Disks (as of 24 Aug 00) Model 150 US_7568.EXE Reference Diskette M41G3668.EXE 7568 Reference Companion Diskette Image Model C40
Model D40
Miscellaneous
7568 Front Panel 
Processor Cards (Not complexes!) D40 Processor Card Announcement Letter 192-217 The 486 DX2-50MHz Processor Card is compatible with and may be installed in earlier versions of the Model 800. Full support for 8MB memory modules and for system memory greater than 16MB requires that this feature be installed in earlier Model 800 systems. The 7568-D40, and earlier systems with the 486DX2-50MHz Processor Card installed, do not support the 0-16MB Extended Memory Adapter (#6345) The D40 level supports four DASD. Installation of the 7568 Auxiliary DASD Module is supported only in systems with either the 80486 Processor Card or the 486 DX2-50MHz Processor Card installed on the system. Installation of the 7568 Auxiliary DASD Module also requires that the base system have a Disk Module installed, either as part of the original system or as the Disk Module feature (#6222). Installation of the 400MB or 1.0GB SCSI Fixed Disk Drives (#6873 and #6874 respectively) in earlier 040 or 150 systems requires Reference Diskette Version 1.20 for proper setup and diagnostic support. Diagnostics for these systems does not report the capacity of a defective disk drive. Mixing 4MB and 8MB SIMMs Prohibited All memory modules on the 486DX2-50 Processor Card must be of the same type (4MB or 8MB). Mixing of 4MB and 8MB modules results in a system memory error. Maximum Memory: There are five memory module positions on the processor card. One of these positions is for a memory module that is dedicated to providing error correcting code (ECC) capability, and is therefore not available as system memory. This leaves four module positions that are available for system memory. For 7568-D40 systems the total maximum system memory is 32MB. This level requires installation of five of the 8MB memory modules (one for the ECC position and four for system memory). Intel 486 DX2-50 processor card supporting
up to 32MB of error correcting code memory, the XGA Display Adapter/A,
up to four internal SCSI fixed disk drives and installation of an IBM FDDI
Workstation Base Adapter (either fiber or copper), in a single attach station
configuration.
XGA-2 Only Supported by D40 C40 Processor Card
Supports 2MB and 4MB simms. You cannot mix them. Initial setup and loading of diagnostic software on the Model C40 with no DASD requires the use of the Setup and Service Device (#6230). 040 / 150 Processor Card
80387 MATH CO-PROCESSOR (25 MHZ) (INDUSTRIAL) (#6532): The 80387 Math Co-Processor (Industrial) has been modified to meet the environmental requirements of the GEARBOX system. (Ed. maybe one of the ceramic capped chips?) 040
In the floppyless configuration, the 040 requires the Setup and Service Device to load the BIOS and setup the system Look HERE DISK MODULE (#6222): The Disk
Module allows for adding DASD to a Model 040. The Disk Module consists
of a double-wide shroud and a Disk/Diskette Adapter Card, to be plugged
into the Model 040 frame in place of two empty card shrouds. The
Disk/Diskette Adapter Card
NOTE: PS/2 adapters should not be installed in the slot #9 position.
This is due to limitations with setup and diagnostic code recognizing such
adapters in that position.
Software for the Gearbox IBM operating system products compatible with the 7568-D40:
(2) Earlier levels are no longer formally supported by IBM. In addition, certain D40 system hardware capabilities may not be supported by such earlier versions (for example, DOS Version 3.3 supports no more than two fixed disk drives). Use of OS/2 SE and EE Versions 1.2 and 1.3 will result in a "system hang" problem when Control-Alt-Delete (C-A-D) is entered. If C-A-D is entered, the system must be reset or powered down and restarted. This is the same as on the previous C40 system. GEARBOX Language Extensions are available for various
operating systems. Language Extensions provide the ability to take full
advantage of the unique error notification and orderly shutdown/startup
capabilities of the GEARBOX Model 800 system.
Additional diagnostic and defective part isolation assistance is available in the Maintenance Information publication (S15F-8611), which may be purchased separately. If this publication has been purchased previously, a complete revision to the page content may be purchased separately (#6879) (U.S. English).
GEARBOX MODEL 800 (7568-C40)
Attachment support for the PS/2 3.5-inch Rewritable Optical Drive in the PS/2 SCSI Storage Enclosure requires that GEARBOX Model 800 systems shipped from IBM before December 1990, have the PF1193 BIOS and Reference Diskette Upgrade installed. LIMITATIONS:
Use of Versions 1.2 and 1.3 of these products will result in a "system hang" problem if Control-Alt-Delete (C-A-D) is entered through the keyboard. C-A-D should not normally be used with the GEARBOX Model 800. The key switch "Reset" position is provided for this purpose. If C-A-D is entered, the system will have to be powered down and restarted, or the key switch can be used to reset the system. Machine Type 7568 -- Installation and Operation
One of the following IBM installed DASD content alternatives
may be ordered with the system order, at the listed additional charge:
The following are available for customer installation
on the GEARBOX Model 800:
GEARBOX MODEL 800 (7568-040/150)
BASE SYSTEM The GEARBOX Model 800 supports the PLANT FLOOR SERIES (TM) Distributed Automation Edition (TM) products and related application programs. The GEARBOX Model 800 is based on an Intel 80386 microprocessor, operating at 25 MHz, and supports an optional 80387 Math Co-Processor. The base memory is 8MB on the Model 150, or 4MB (expandable to 8MB) on the Model 040. In addition, the Model 800 will support the 0-16MB Extended Memory Adapter (#6345). All memory is Error Correcting Code (ECC). Performance is further enhanced through 32KB of Cache Memory on the Processor Card, a 120MB SCSI Disk Drive with 23ms access time, and 0.5MB of DASD Cache Memory on the Disk/Diskette Adapter Card. A second 120MB Disk Drive is an optional feature. The Disk/Diskette Adapter Card also contains an external SCSI interface for customer use. Use of this interface requires that the customer provide a software device driver for interface to the intended operating system. No such software device driver file is provided with the system. The GEARBOX Model 800 is supported by IBM PC DOS (Version 3.30/4.0) and OS/2 (SE Version 1.1/1.2 and EE Version 1.1/1.2) operating systems. Language extensions for PC DOS and OS/2 will be available in March of 1990, to take full advantage of the unique error notification and orderly shut-down/start-up capabilities of the system. Five IBM personal computer software languages are supported:
Two configurations of the GEARBOX Model 800 are available. The configurations and brief content summary are as follows. MACHINE TYPE 7568 MODEL 040
NOTE: Initial set-up and loading of diagnostic software on the Model 040 requires the use of the Set-Up and Service Device (#6230). MACHINE TYPE 7568 MODEL 150
OPERATING SYSTEM STATEMENT OF DIRECTION: IBM intends to provide a future Advanced Interactive Executive PS/2 (AIX (TM) PS/2) operating system enhancement that will support the GEARBOX Model 800. The GEARBOX Model 800 supports the following previously announced features. All these feature cards require one of the Micro Channel adapter features (#6224 or #6225) for installation, except the 0-16MB Extended Memory Adapter (#6245). DISK MODULE (#6222): The Disk Module allows for adding DASD to a Model 040. The Disk Module consists of a double-wide shroud and a Disk/Diskette Adapter Card, to be plugged into the Model 040 frame in place of two empty card shrouds. The Disk/Diskette Adapter Card contains 0.5MB of DASD Cache Memory, and supports up to two 120MB Disk Drives and a 1.44MB Diskette Drive installed inside the shroud. The Disk/Diskette Adapter Card also contains an external SCSI interface for customer use. Use of this interface requires that the customer provide a software device driver for interface to the intended operating system. No such software device driver is provided with the system or feature. 120MB DISK DRIVE (#6223): The 120MB Disk Drive is the same as the drive that comes standard on the Model 150. The 120MB Disk Drive can be used along with the Disk Module to provide a disk drive on the Model 040, or can be added to the Model 150 to provide a total of 240MB of Disk Drive capacity. 1.44MB DISKETTE DRIVE (SLIM-LINE) (#6229): The 1.44MB Diskette Drive is the same as that which comes installed on the Model 150. The 1.44MB Diskette Drive can be used along with the Disk Module (#6222) to provide diskette function on a Model 040. The Model 150 is limited to one diskette drive and cannot accept the 1.44MB Diskette Drive in addition to the already installed device. CARD SHROUD (MACHINE TYPE 7568) (#6530): This Card Shroud is the same as those that come standard on the system. The Card Shroud permits installation of adapter cards in extra shrouds for immediate insertion in a GEARBOX Model 800 system, without having to open an installed shroud/card assembly for replacement of the card in the shroud. The Card Shroud could also be used to fill the open positions if the Disk Module were to be removed from a Model 150 system (two Card Shrouds would be needed). NOTE: The Card Shroud (#6530) is not compatible with the IBM 7552 Industrial Computer Processor and System Resource cards, due to different locations of openings in the shroud for LED indicators. The GEARBOX Model 800 supports the following IBM machine types:
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