Product Documentation
Abstract
System board connector and jumper descriptions and locations.
Content
| System Board | Connectors |
|---|---|
 | 1. Cable: Power control and status (PS3) 2. Cable:+ 5V,+ 12V, and+ 3.3V power connector (PS1 and PS2) (identical) 3. Cable: Diskette drive connector 4. Cable: Front panel connector 5. Not used 6. Memory board connector 7. Secondary processor board connector 8. Primary processor board connector 9. Fan 1 connector (not used) 10. Fan 2 connector (inner chassis fan) 11. Hard disk drive LED 1 connector 12. I C connector (not used) 13. Fan 3 connector (upper outer chassis fan) 14. Fan 4 connector (lower outer chassis fan) 15. Hard drive LED 2 connector (not used) 16. Connector for optional Server Management Module (not used) 17. SCSI bus connectors: Channel A to the right, Channel B to the left 18. EISA slots 1-4 for add-in boards (slot 1 toward top, 4 toward bottom) 19. PCI slots 1-6 for add-in boards (slot 1 toward top, 6 toward bottom: Bus 0 = slots 1 - 3; Bus 1= slots 4 - 6) 20. Configuration switches and jumpers 21. Real-time clock 22. Video DRAM expansion socket 23. VGA monitor connector 24. Parallel port connector 25. Serial port connectors A (COM1) and B (COM2) 26. PS/2-compatible keyboard and mouse connectors |
Configuration Switches
| Switch | Position | Function |
|---|---|---|
| S6A1-1 | On Off (1) See footnote | Clear CMOS Normal operation |
| S6A1-2 | On Off (1) See footnote | Clear password Normal operation |
| S6A1-3 | Off (1) See footnote | Reserved |
| (1) Factory default setting. | ||
NOTES:
1. This is the factory default.
2. Do not change the settings for switches S6A1-4, S6A1-5, S6A1-6, or S6A1-8. These switch settings should remain as set at the factory.
Resetting NVRAM and the RTC (Switch S6A1-1)
Setting the CMOS switch to On clears the current values of NVRAM and the RTC when the server is reset. This returns NVRAM and the RTC to the factory default.
When the CMOS switch is set to Off, the default, the current settings are preserved during system reset.
To reset the server's NVRAM and RTC settings to the factory default values, do the following steps:
1. Power-off the server and monitor.
2. Locate the configuration switches on the system board.
3. If necessary to access the configuration switches, remove the processor board.
4. Slide switch S6A1-1 to On.
5. If removed, replace the processor board.
6. Power-on the monitor and server; then, wait for POST to complete. This automatically reprograms the NVRAM and RTC to their factory settings.
7. Power-off the server and the monitor.
8. If necessary to access the configuration switches, remove the processor board.
9. Slide switch S6A1-1 to Off.
10. If removed, replace the bottom processor board.
Jumpers
BIOS Recovery Jumper (J6A1)
| Jumpers | Function |
|---|---|
| 1-2 (1) See footnote below | Normal BIOS boot block |
| 2-3 | Recovery BIOS boot block |
| (1) Factory default setting. | |
Boot Block Write Protect Jumper (J6A1)
| Jumpers | Function |
|---|---|
| 1-2 | Boot block is write-protected |
| Factory default setting | |
BIOS Write Jumper J6A4
| Jumpers | Function |
|---|---|
| 1-2 | Disables BIOS update of flash memory |
| 2-3 (1) See footnote below | Enables BIOS update of flash memory with special utility |
| (1) Factory default setting. | |
Floppy 0 Jumper at J6A4 Floppy 1 Jumper at J6A2
| Jumpers | Function |
|---|---|
| 1-2 | For 1.44 MB diskette drive, disable automatic size detection. |
| 2-3 | For 2.88 MB diskette drive, enable automatic size detection. |
| Factory default setting. | |
Video Sleep Jumper, J6A2
| Jumpers | Function |
|---|---|
| 1-2 | Video Sleep register resides at 03C3H |
| 2-3 | Video Sleep register resides at 46E8H |
| Factory default setting | |
Power Control Jumper (J6A3)
| Jumpers | Functions |
|---|---|
| 1-2 | Disables RTC power supply control |
| 2-3 | Enables power supply control using the RTC |
| Factory default setting | |
Document Location
Worldwide
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Document Information
Modified date:
23 January 2019
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