Sun SPARCstation 4 85MHz Motherboard
Part# 501-2549
Manufacturer: Sun Microsystems
Description: SPARCstation 4 85MHz System Board
Memory: 0MB Memory
NVRAM: Needs Replacing
Condition: Clean, Pull, Vintage
Specifications:
- SPARC 4 Motherboard
- 85MHz microSPARC II CPU
- 5x SIMM Slots
- 1x SBUS Slot
- Video SIMM Slot
- Mini Din-8 Keyboard Connector
- DB25 Serial A/B Connectors
- DB13W3 Video Connector
- 10BASE-T Ethernet Connector
- DB25 Parallel Connector
- DB15 Ethernet Connector
- HD50 SCSI Connector
- NVRAM, (needs replacement)
- 0MB Memory included
Supported Sun Systems:
- SPARCstation 4 / SS4 / SPARC4 / SPARC 4
All SPARCstation 4 85MHz Motherboard Part#s:
- 501-2549
- 501-2578
- 501-2590
- 501-2928
Manufacturer Notes:
- The minimum OS is Solaris 1.1.2 or Solaris 2.4 Hardware: 11/94.
- The PLCC Boot PROM is not a FRU and is not field replaceable.
- Serial Port B supports asynchronous operation only.
- Sync on green produces a higher than normal green output level when the tcx frame buffer is connected to the 16-inch Sony Mid-Range and 17-inch Nokia Entry-Level Color Monitors. Refer to BugID 14902389 [SUNBT1218690].
- OBP settings for the SS4 tcx framebuffer use the Pixel frequency instead of the Vertical frequency.
- Use the OBP setenv command to change the frame buffer resolution:
- ok setenv fcode-debug? true
- ok reset
- ok setenv output-device screen:r1152x900x94
- ok setenv output-device screen:r1024x768x84
Default resolution for the video output on this board is 744 x 1273 @ 105 Mhz.
You are purchasing the Sun 501-2549 85Mhz SPARCstation 4 board pictured.
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