| 
 
 Ultra 1 Model 140EA12-140
| 501-4291 | 501-4677 |  
| 143MHz 0MB FRU FAB 270-2486
 | 143MHz 0MB FRU FAB 270-4358
 |   
 Backpanel and Connectors 
 Jumper Settings
| JUMPER | PINS | SETTING | DESCRIPTION |  
| J2002 | 1-2 2-3
 | In In
 | Select FPROM (default) Select ROMBO
 |  
| J2003 | 1-2 2-3
 | In In
 | FPROM write protect (default) FPROM write enable
 |  
| J2102 | 1-24 | Out | Serial port connector |  
| J2103 | 1-8 | Out | Serial port edge test |  
| J2104 | 1-2 2-3
 | In In
 | RS-232 -12Vdc RS-423 (default)
 |  
| J2105 | 1-2 2-3
 | In In
 | RS-232 +12Vdc RS-423 (default)
 |  
| J2201 | 1-2 2-3
 | Out Out
 | Button XIR Button POR
 |  
| J2202 | 1-8 | Out | ROMBO connector |  
| J2203 | 1-8 | Out | JTAG connector |  
| J2204 | 1-2 2-3
 | In In
 | FPROM high half booting FPROM low half booting (default)
 |  
| J3602 | 1-8 | Out | Ethernet edge test |  
| J3603 | 1-8 | Out | Ethernet edge test |  Configured System Board
| PART # | MEMORY | SIMM | # SIMMS |  
| 501-3051 | 64MB | 32MB | 2 |  Notes
The minimum operating system is Solaris 2.5 Hardware: 1/96.
The flash PROM is soldered to the system board.
Use the Flash PROM Programming Utility to update the flash PROM. 
UltraSPARC Fan 540-2761 was replaced by Heatsink 540-3361 and
    Shield 540-3090 in May/June 1997.
 References
 Sun Ultra 1 Series Installation Guide, 802-3825. Sun Ultra 1 Creator Series Service Manual, 802-4148. Flash PROM Programming Guide, 802-3233. 
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