Sun Microsystems, Inc.   Sun System Handbook - ISO 4.1 October 2012 Internal/Partner Edition
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Floating Point Unit-2 (FPU2)

Sun-4/110/150

Option 154
501-1384



4/110/150 Option Parts
Front Bracket
Rear Bracket
4-40 Screw		 340-1743
340-2163
240-1196

J100 Jumper Settings

PINS SETTING DESCRIPTION
1-2
3-4
5-6
7-8		 In
In
In
Out		 TI chip on board
No Tristate on all output
TI8847/TI8837
Enable chaining mode

Notes

  1. The 501-1384 FPU2 is supported only on CPU boards 501-1512, 501-1513, 501-1514, 501-1515, 501-1516, and 501-1517.
  2. Remove the Weitek ALU (U202) and Multiplier (U201) from the 4/110/150CPU to install the FPU2.
  3. Diagnostics fpurel and fputest for SunOS 4.0 and 4.0.1 are on the 1.0 FPU2 Patch Tape.

Reference

FPU-2 Installation Manual for Sun-4/100 Systems, 800-3067.

Floating Point Unit-2 (FPU2)

Sun-4/260/280

Option 154
501-1387



J100 Jumper Settings

PINS SETTING DESCRIPTION
1-2
3-4
5-6
7-8		 In
In
In
Out		 TI chip on board
No Tristate on all output
TI8847/TI8837
Enable chaining mode

Note

Diagnostics fpurel and fputest for SunOS 4.0 and 4.0.1 are on the 1.0 FPU2 Patch Tape.

Reference

FPU-2 Installation Manual for Sun-4/100 Systems, 800-3067.

Last updated: December 2, 1996
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