Sun SPARCstation IPC Motherboard
Part# 501-1870
Manufacturer: Sun Microsystems
Description: SPARCstation IPC Motherboard
NVRAM: needs replacing, dead
Condition: Clean, Pull
Specifications:
- 25Mhz Weitek CPU
- 12 Memory Slots
- Two SBus slots
- Two RS-232/RS-423 Serial Ports; 8-pin mini-DIN connectors
- DB13W3 Video Connector
- Two 8-pin mini-DIN Keyboard, Mouse Connectors
Manufacturer Notes:
- The minimum operating system is SunOS 4.0.3c.
- Use 1MB SIMM 501-1697-01.
- Use 4MB SIMM 501-1625-01 or 501-1739-01.
- Bug 1047696 affects the installation of SunOS 4.1.1 and 4.1.1 Rev B if 1MB and 4MB SIMMs are mixed. Install the 4MB SIMMs in Bank 0 when installing miniunix.
- A shunt is installed on pins 1-2 of J0710 on CPU 501-1974. Install the shunt between Pins 2-3 to bypass the S4_Video ASIC.
- SCSI bus errors may occur when multiple SCSI devices are used with CPU boards below 501-1689-06.
- CPU boards below 501-1689-07 fail SunDiag Floppy Drive testing.
- CPU boards with the 53C90A SCSI Controller require a patch to operate under SunOS 4.0.3c.
- The 2.4, 2.6, and 2.9 Boot PROM modes do not support SunOS 4.0.3c or SunOS 4.1. Set the NVRAM parameter version2? to false to enable the 1.7 Boot PROM mode.
Sun Fact:
The SPARCstation IPC was introduced by Sun Microsystems in July of 1990. It is based on the sun4c architecture and is enclosed in a lunchbox chassis. SPARCstation IPC, Sun-4/40 code-named Phoenix.
Vintage Sun Microsystems, Rare.
Ships SAFE and Fast!!