C H A P T E R 1 |
Changing Flash PROM Jumpers |
This document accompanies the standalone CD-ROM containing the new firmware code for updating your system's flash PROM. This document is intended for:
This chapter describes the procedure for manually changing flash PROM jumper settings (or front panel keyswitch settings) in your system.
Sun Ultra™, Sun Enterprise™, Ultra Enterprise™, Sun Blade™, Sun Fire™, and Sun Netra™ systems that conform to the Sun4U™ architecture use flash programmable read-only memory (PROM). Flash PROMs enable you to:
The Sun Ultra, Sun Enterprise, Ultra Enterprise, Sun Blade, Sun Fire, and Sun Netra systems are equipped with flash PROM jumpers. These flash PROM jumpers are usually located on the motherboard, though this varies from system to system. These jumpers enable you to:
Before updating the flash PROM, use this procedure to change the write-protect/write-enable jumper or keyswitch setting.
1. Halt the system by typing init 0 at the superuser prompt.
Caution - Use proper grounding procedures, such as wearing an antistatic wrist strap to avoid electrostatically damaging system components. |
3. If necessary, remove the system cover from the Sun Enterprise 250, Ultra Enterprise 450, Sun Fire V240, Sun Netra 240, Sun Fire 280R, Sun Netra T4, Sun Fire V440, Sun Fire V480, Sun Fire V490, Sun Fire V880, or Sun Fire V890 system (see the following note).
4. Locate the flash PROM jumpers on the motherboard or system board in your system.
Refer to the table below to find the appropriate diagram for your system.
5. Compare your system's existing jumper settings with the settings and functions described in "Invalid Cross-Reference Format".
6. If an installed plug-in card in your system covers the flash PROM jumpers, remove the card from the system before changing the desired jumpers.
Refer to your system's service or reference manual for instructions.
7. Use a pair of small needlenose pliers to move the jumper to the desired pins.
For systemss covered in this guide, you set the write-protect/write-enable jumper to write-enable by moving the jumper to pins 2 and 3 (see FIGURE 1-1).
8. If you removed a plug-in card from the system before changing the jumper, replace the card now.
Refer to your system's service or reference manual for instructions.
9. Remove your wrist strap and if necessary, replace the system cover.
This section provides figures that illustrate the locations of flash PROM jumpers and a table that describes the settings for those jumpers on various Sun systems.
The following figures depict the locations of flash PROM jumpers on various Sun systems.
TABLE 1-2 describes the flash PROM jumper settings for various Sun systems.
Do not change the position of jumper J2204 unless directed to do so by the instructions in Appendix . The position of jumper J2204 does not need to be changed unless the programming sequence is interrupted. |
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Do not change the position of jumper J2804 unless directed to do so by the instructions in Appendix . The position of jumper J2804 does not need to be changed unless the programming sequence is interrupted. |
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Do not change the position of jumper J3102 unless directed to do so by the instructions in Appendix . The position of jumper J3102 does not need to be changed unless the programming sequence is interrupted. |
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*Jumper J2704 is factory-set so that the flash PROM is write-enabled. You use the keyswitch located on the front panel to write-protect the flash PROM. When the switch is set to the Locked position (), the flash PROM is write-protected. When the switch is set to the Power-On position () or to the Diagnostics position (), the flash PROM is write-enabled. **Do not change the position of jumper J2804 unless directed to do so by the instructions in Appendix . The position of jumper J2804 does not need to be changed unless the programming sequence is interrupted. |
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*Jumper J3103 is factory-set so that the flash PROM is write-enabled. You use the keyswitch located on the front panel to write-protect the flash PROM. When the switch is set to the Locked position (), the flash PROM is write-protected. When the switch is set to the Power-On position () or to the Diagnostics position (), the flash PROM is write-enabled. **Do not change the position of jumper J5501 unless directed to do so by the instructions in Appendix . The position of jumper J5501 does not need to be changed unless the programming sequence is interrupted. |
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*Jumper JP11 is factory-set so that the flash PROM is write-enabled. You use the keyswitch located on the front panel to write-protect the flash PROM. When the switch is set to the Locked position (), the flash PROM is write-protected. When the switch is set to the Power-On position () or to the Diagnostics position (), the flash PROM is write-enabled. **Do not change the position of jumper JP13 unless directed to do so by the instructions in Appendix . The position of jumper JP31 does not need to be changed unless the programming sequence is interrupted. |
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*Jumper J4205 is factory-set so that the flash PROM is write-enabled. You use the keyswitch located on the front panel to write-protect the flash PROM. When the switch is set to the Locked position (), the flash PROM is write-protected. When the switch is set to the Power-On position () or to the Diagnostics position (), the flash PROM is write-enabled. **Do not change the position of jumper J4207 unless directed to do so by the instructions in Appendix . The position of jumper J4207 does not need to be changed unless the programming sequence is interrupted. |
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Jumper J1104 is factory-set so that the flash PROM is write-enabled. You use the keyswitch located on the front panel to write-protect the flash PROM. When the switch is set to the Locked position (), the flash PROM is write-protected. When the switch is set to the Power-On position () or to the Diagnostics position (), the flash PROM is write-enabled. |
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*Jumper J3003 is factory-set so that the flash PROM is write-enabled. You use the keyswitch located on the front panel to write-protect the flash PROM. When the switch is set to the Locked position (), the flash PROM is write-protected. When the switch is set to the Power-On position () or to the Diagnostics position (), the flash PROM is write-enabled. **Do not change the position of jumper J3002 unless directed to do so by the instructions in Appendix . The position of jumper J3002 does not need to be changed unless the programming sequence is interrupted. |
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Copyright © 2004, Sun Microsystems, Inc. All Rights Reserved.