501-2861 Sun SPARCstation 4 70MHz CPU Motherboard SPARC 4, SS4, Vintage Sun For Sale
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501-2861 Sun SPARCstation 4 70MHz CPU Motherboard SPARC 4, SS4, Vintage Sun
Price: US $100.00
Sun SPARCstation 4 70MHz Motherboard Part# 501-2549 / 501-2861Manufacturer: Sun MicrosystemsDescription: SPARCstation 4 70MHz System BoardCondition: Clean, Pull, Vintage Specifications:
SPARC 4 Motherboard
70MHz 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 70MHz Motherboard 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 70Mhz SPARCstation 4 board pictured. Ships SAFE and Fast!!!
