SPARCstation LX
| Company type | Public |
|---|---|
| Industry | Computer hardware |
| Founded | February 24, 1982 in Santa Clara, California, United States |
| Headquarters | Santa Clara , United States |
| Products | SPARCstation LX, SPARCstation 2, SPARCstation 5, SPARCclassic, SPARCclassic X, SPARCstation ZX |
| Website | www |
The SPARCstation LX (Sun model 4/30) is a workstation introduced by Sun Microsystems on November 10, 1992, initially priced at . Mass production commenced in December 1992 at Sun’s manufacturing facility located in Chelmsford, Massachusetts.
As a more affordable alternative to flagship systems such as the SPARCstation 2, the SPARCstation LX along with the SPARCclassic achieved moderate market penetration, with combined shipments totaling approximately 3,500 units by the end of 1992.
This workstation shares the codename "Sunergy" with related models including the SPARCclassic, SPARCclassic X, and the SPARCstation ZX.
Software
At launch, the SPARCstation LX was bundled with Solaris version 2.1 (SunOS 5.1). It mandates at least SunOS 4.1.3 Revision C or Solaris 2.3 (SunOS 5.3) for operation, and supports Solaris releases up to version 9 (SunOS 5.9). Support for the sun4m architecture, encompassing the SPARCstation LX, was discontinued following Solaris 9.
Open-source operating systems like NetBSD/sparc32 are compatible with the SPARCstation LX and its cgsix graphics framebuffer; OpenBSD maintained support until release 5.9. Additionally, several Linux distributions can operate on this platform.
Hardware
Built upon the sun4m architecture, the SPARCstation LX incorporates a 50 MHz MicroSPARC CPU integrating processing core, floating-point unit, memory management unit, and cache. The mainboard accommodates six DSIMM memory slots arranged in three banks, supporting configurations from 16 MB up to an official maximum of 96 MB; unofficially, it can handle 128 MB by installing 32 MB SIMMs in the first bank. Standard configurations typically shipped with 16 MB of RAM.
The graphics subsystem utilizes an accelerated CG6 framebuffer (TurboGX or GXplus) equipped with 1 MB of VRAM, expandable to 2 MB, capable of delivering resolutions up to , surpassing the CG3 framebuffer found in the SPARCclassic.
Storage solutions include a 3.5-inch SCSI hard disk available in sizes from to , complemented by a standard 1.44 MB floppy drive. While external SCSI-2 peripherals are supported, IDE/ATAPI devices are not compatible.
Audio functionality is enhanced to provide 16-bit input/output capabilities, featuring dedicated jacks and originally including a condenser microphone. The onboard DBRI chip also enables ISDN support. Expansion options consist of two SBus slots.
Networking is integrated via an onboard Ethernet controller offering both 10BASE-T and AUI interface options. Standard input/output ports include two serial ports (DB25), one parallel port (DB25), and a mini DIN-8 connector for keyboard and mouse.
Critical system information such as Ethernet MAC address and host ID is stored within OpenBoot ROM's NVRAM backed by a battery; if this battery fails, users must manually input boot parameters during startup.
The compact "lunchbox" form factor measures roughly wide by deep by high, weighs approximately , and contains a 70W power supply unit.
A variant known as the SPARCstation ZX replaces the built-in CG6 framebuffer with Sun’s ZX "Leo" SBus card capable of displaying 24-bit color.
Reception
In its January 1993 edition, SunExpert Magazine lauded the "eye-popping SPARCstation LX" for delivering performance of 59 MIPS alongside accelerated graphics and integrated ISDN, positioning it well for demanding applications such as CAD, AEC, CASE tools, design automation, document management, imaging tasks, and office productivity.
By March 1993, Byte Magazine characterized the SPARCstation LX as a compact desktop suitable for general use and cost-effective file serving. It emphasized the robust integer and floating-point performance of its 50 MHz MicroSPARC processor which outpaced that of the SPARCstation 2. The publication praised disk input/output speeds and built-in GXplus graphics for enhancing X Window System functionality. Despite intensifying competition from other RISC vendors and forthcoming Intel Pentium processors, the SPARCstation LX remained competitively priced at , including Solaris 2.1, 16 MB RAM, and a hard drive.
A United Press International article dated March 29, 1994 reported Sun Microsystems’ assertion that its successor model, the SPARCstation 5, offered double the performance of the SPARCstation LX while being more cost-effective.