IBM PS/2 486DX2-50 PROCESSOR UPGRADE OPTION Contents Announcement Letter Number 192-099 dated April 28, 1992 US - Last Revised on April 28, 1992 Brief Description of Announcement, Charges, and Availability The PS/2 486DX2-50 Processor Upgrade Option is designed to enhance performance for Personal System/2 (R) (PS/2 (R)) Model 90 XP 486 and 95 XP 486 systems. This announcement demonstrates IBM's commitment to bring high-quality technological leadership products to the PS/2 market quickly and provide investment protection to customers who have previously purchased PS/2 Model 90 XP 486 and 95 XP 486 systems. The PS/2 486DX2-50 Processor Upgrade Option features the 32-bit Intel 486DX2-50 (1) processor installed on a processor complex. The processor performs computational operations internally at a speed of 50MHz, while operating external to the chip at 25MHz. The processor includes a numeric coprocessor, an internal cache controller and 8KB of cache memory. The PS/2 486DX2-50 Processor Upgrade Option can be used to upgrade the PS/2 Model 90 XP 486 (8590-0G5, 0G9, 0J5, 0J9, 0K9, 0KD and 0KF) and PS/2 Model 95 XP 486 (8595-0G9, 0GF, 0J9, 0JD, 0JF, 0KD and 0KF) system units as follows: o PS/2 486DX2-50 Processor Upgrade Option -- from 486SX/20 or 487SX/20 (#1154, 32G3491) o PS/2 486DX2-50 Processor Upgrade Option -- from 486/25 (#1155, 32G3491) o PS/2 486DX2-50 Processor Upgrade Option -- from 486/33 (#1164, 32G3491). (R) Registered trademark of International Business Machines Corporation. (1) Trademark of Intel Corporation. Planned Availability Date: April 30, 1992. Customer Letter Section HIGHLIGHTS o Dual-speed, 32-bit microprocessor o Internal memory cache controller and 8KB internal memory cache o Provides better I/O performance o Internal floating-point processor unit DESCRIPTION INVESTMENT PROTECTION The PS/2 486DX2-50 Processor Upgrade Option provides ease of performance upgrade and software compatibility with a wide range of PS/2 operating systems. Upward migration via these upgrades can be achieved by customers desiring greater processor performance. The PS/2 486DX2-50 Processor Upgrade Option is net-priced, based on the return of the replaced processor complex to IBM. The PS/2 Model 90 XP 486 and 95 XP 486 family of systems provides customers with a wide range of function and hardware designed to meet customer requirements in many different application environments. The common processor complex design of the PS/2 Model 90 XP 486 and 95 XP 486 family of systems allows a significant performance upgrade in the server and compute-intensive applications as computing demands increase. GROWTH ENABLEMENT The PS/2 486DX2-50 Processor Upgrade Option offers PS/2 Model 90 XP 486 and 95 XP 486 customers, with 20MHz, 25MHz and 33MHz systems, a higher level of performance, while providing investment protection. USER PRODUCTIVITY The PS/2 486DX2-50 Processor Upgrade Option enhances end-user productivity by maintaining hardware and software compatibility with the base system, features and applications. Common user interface (CUA) enables significant performance enhancements and increased productivity without new system education, commands or unique instructions. PRODUCT POSITIONING The PS/2 486DX2-50 Processor Upgrade Option provides maximum investment protection by allowing a user to upgrade easily from models of the PS/2 Model 90 XP 486 and PS/2 Model 95 XP 486 to the newest Intel microprocessor technology. This same capability is provided to users of the 486SX/25MHz system through the 486-25/50MHz Microprocessor Upgrade Option. The new PS/2 486DX2-50 Processor Upgrade Option provides levels of performance between the current PS/2 486/33MHz and the 486/50MHz Processor Upgrade Options. The PS/2 486DX2-50 Processor Upgrade Option is appropriate for server or workstation environments where improved performance and computational capabilities are required. PUBLICATIONS The following publications are shipped with the product: o Installation Instructions -- illustrations and descriptions explaining the installation procedures for the PS/2 486DX2-50 Processor Upgrade Option o Personal System/2 Model 90 486 Quick Reference o Personal System/2 Model 95 486 Quick Reference. SLSS is available. EDUCATION SUPPORT Call IBM Telemarketing Operations at 1-800-426-2468 for schedules, enrollments and orders for self-study courses. TECHNICAL INFORMATION SPECIFIED OPERATING ENVIRONMENT MACHINE REQUIREMENTS: The PS/2 486DX2-50 Processor Upgrade Option can be installed in PS/2 Model 90 XP 486 (8590-0G5, 0G9, 0J5, 0J9, 0K9, 0KD and 0KF) and PS/2 Model 95 XP 486 (8595-0G9, 0GF, 0J9, 0JD, 0JF, 0KD and 0KF) systems, only in the specified processor complex slot on the system board. The PS/2 486DX2-50 Processor Upgrade Option requires a unique reference diskette that is identified by a '2' on the reference diskette label. The diskette is shipped with the option. PROGRAMMING REQUIREMENTS: The following operating systems and extensions support the PS/2 486DX2-50 Processor Upgrade Option when installed in the appropriate model of the PS/2 Model 90 XP 486 and PS/2 Model 95 XP 486: o Operating System/2 (R) (OS/2 (R)) LAN Server 2.0 Entry and Advanced o OS/2 Standard Edition (OS/2 SE) 1.30.2 (2) o OS/2 (R) 2.0 (2) o OS/2 Extended Services 1.0 o OS/2 Extended Edition (OS/2 EE) 1.30.2 (2) o Disk Operating System (DOS) 5.0 (3) o AIX (R) PS/2 1.2.1 (4) o IBM 4680 Operating System Versions 2 and 4 o NetWare (5) v2.2 and v3.11 (when certified by Novell; testing is not complete at this time). All of the above operating systems provide support for up to 16MB of memory on the PS/2 Model 90 XP 486 and PS/2 Model 95 XP 486 systems. However, OS/2 2.0, AIX PS/2 1.2.1 (with the application of PTF #P211300), SCO (6) UNIX (7) System V/386 Version 3.2v4.0 and NetWare v2.2 and v3.11 operating systems provide support for greater than 16MB of memory on the PS/2 Model 90 XP 486 and PS/2 Model 95 XP 486 systems. (R) Registered trademark of International Business Machines Corporation. (2) OS/2 SE, OS/2 EE 1.30.2 and OS/2 2.0 support up to twenty-four fixed disks. (3) DOS 5.0 supports up to seven fixed disk devices and additional SCSI devices (up to a total of twenty-four) in a system. (4) AIX PS/2 1.2.1 (with the application of PTF #P211300) will exploit the PS/2 486DX2-50 Processor Upgrade Option when installed in PS/2 Models 90 XP 486 and 95 XP 486. (5) Registered trademark of Novell, Inc. (6) Trademark of Santa Cruz Operation, Inc. (7) Registered trademark of UNIX Systems Laboratories, Inc. COMPATIBILITY: The IBM PS/2 486DX2-50 Processor Upgrade Option is designed to maintain compatibility with many software programs currently operating under DOS and OS/2 on the Personal Computer XT (TM), Personal Computer AT (R) and the PS/2 family. The PS/2 Models 90 XP 486 and 95 XP 486 contain licensed System Programs that include set configuration and features, test, copy an option diskette, backup/restore and update System Programs. These licensed System Programs are stored in a 3MB protected partition on the fixed disk drive. The initial machine load (IML) loads the BIOS program from the fixed disk drive into system memory. BIOS provides the hardware instructions and interfaces designed to support the standard features of the PS/2 Model 90 XP 486 and Model 95 XP 486 and maintains compatibility with many software programs currently operating under DOS and OS/2 on the IBM Personal Computer XT, IBM Personal Computer AT and the PS/2 family. However, due to the higher speed of the 80486 processor on the new processor complex, some timing sensitive software may require modification. The PS/2 Model 90 XP 486 and Model 95 XP 486 Reference Diskette contains an update program (DISK386.SYS) and an installation program. The update program maintains compatibility between SCSI devices, IBM DOS, and some of the following types of programs that assume the fixed disk drive will utilize the system direct memory access (DMA) controller: o Multitasking DOS programs o Programs written for the 80386 microprocessor only o Programs that use the virtual 8086 mode of the 80386 microprocessor o Programs that emulate expanded memory specification (EMS) in extended memory. The update program should only be installed when applications providing DOS and/or memory extensions fail to work properly. For example, an application may fail to load and return the DOS prompt, or when attempting to access a SCSI device, the system may hang, or the screen may go blank. With this update program installed, a buffer is provided in the first megabyte of system memory, which serves as an intermediate location for data being transferred between the SCSI adapter and the requesting program buffer. While this update program allows applications that utilize the system DMA controller to run, some performance degradation in file access time may be experienced. Only after problems have been experienced, and the performance implications considered, should this update program be used. (TM) Trademark of International Business Machines Corporation. (R) Registered trademark of International Business Machines Corporation. LIMITATIONS: Only one processor complex at a time may be installed in a PS/2 Model 90 XP or 95 XP 486 system. The PS/2 486DX2-50 Processor Upgrade Option supports a maximum of 64MB of parity memory, 16MB of which are addressable by DMA. The PS/2 486DX2-50 Processor Upgrade Option does not support 85ns memory SIMMs. Refer to the PROGRAMMING REQUIREMENTS section for operating systems limitations. The licensed System Programs include set configuration and features, copy an option diskette, test, backup/restore and update System Program. These licensed System Programs are stored in 3MB (three million bytes) of protected partition on the fixed disk drive. The formatted capacity is therefore reduced by 3MB, and the total user accessible capacity may vary slightly based on operating environments. This partition is not affected when the drive is formatted using the Format command provided in DOS or OS/2. The licensed System Programs are also provided on the Reference Diskette that comes with the PS/2 486DX2-50 Processor Upgrade Option. The following Micro Channel (R) adapters and options are not supported by the PS/2 486DX2-50 Processor Upgrade Option: o IBM PS/2 256KB Level 2 Cache Option (#1098, 6451095) o IBM PS/2 1MB Memory Module Kit-85ns (#5212, 6450603) o IBM PS/2 2MB Memory Module Kit-85ns (#5213, 6450604) o IBM PS/2 5.25-inch Diskette Adapter/A (#1007, 6451007) o IBM PS/2 4869-001 5.25-inch 360KB External Diskette Drive o IBM PS/2 4869-002 5.25-inch 1.2MB External Diskette Drive. High performance BIOS uses 128KB of system memory, and an additional 256KB is reserved for system use in systems with 16MB or more of memory. (R) Registered trademark of International Business Machines Corporation. PLANNING INFORMATION CUSTOMER RESPONSIBILITIES: The PS/2 486DX2-50 Processor Upgrade Option is installable by IBM or an IBM Authorized Remarketer. Contact your IBM marketing representative or IBM Authorized Remarketer to arrange for installation. CABLE ORDERS: No cables required. PACKAGING: 486DX2-50 PROCESSOR UPGRADE OPTION (SHIPMENT GROUP): 486DX2-50 Processor Complex o Installation Instructions o Reference and Diagnostic Diskettes o 8590 and 8595 Quick References SECURITY, AUDITABILITY AND CONTROL The PS/2 486DX2-50 Processor Upgrade Option uses the security and auditability features of the PS/2 Model 90 XP 486 or 95 XP 486 in which the option is installed. User management is responsible for evaluation, selection and implementation of security features, administrative procedures and appropriate controls in application systems and communications facilities. TERMS AND CONDITIONS WARRANTY: One year. FIELD INSTALLABLE FEATURE: Yes. Installable by IBM or an IBM Authorized Remarketer. CUSTOMER SETUP: No. The IBM processor complex removed during the installation of the PS/2 486DX2-50 Processor Upgrade Option must be returned to IBM. All other terms and conditions are the same as those applicable to the PS/2 Model 90 XP 486 or Model 95 XP 486 system in which the feature is installed. CHARGES FEATURE PURCHA DESCRIPTION NUMBER PRICE PS/2 486DX2-50 Processor Upgrade Option - from 486SX/20 or 487SX/20* 1154 $2,595 PS/2 486DX2-50 Processor Upgrade Option - from 486/25* 1155 1,445 PS/2 486DX2-50 Processor Upgrade Option - from 486/33* 1164 1,250 * The removed IBM PS/2 processor complex becomes the property of IBM and must be returned. ANNUAL MINIMUM MAINTENANCE CHARGES: IBM ON-SITE REPAIR (IOR) #1154 #1155 #1164 $200 $150 $50