Troubleshooting
Problem
Netfinity 4500R System Board The following illustration shows a layout of the system board and identifies system-board connectors for user-installable options. 1. PCI slot 5 64-bit (J44) 2. Battery 3. PCI slot 4 64-bit (J39) 4. PCI slot
Resolving The Problem
Netfinity 4500R System Board
The following illustration shows a layout of the system board and identifies system-board connectors for user-installable options.
1. PCI slot 5 64-bit (J44)
2. Battery
3. PCI slot 4 64-bit (J39)
4. PCI slot 3 64-bit (J34)
5. PCI slot 2 64-bit (J32)
6. PCI slot 1 64-bit (J27)
7. DIMM 1 (J23)
8. DIMM 2 (J21)
9. DIMM 3 (J19)
10. DIMM 4 (J18)
11. Primary microprocessor (U17)
12. Secondary microprocessor (U3)
13. Voltage regulator module 2 (VRM2) (U26)
System board internal cable connectors
The following illustration shows internal cable connectors on the system board.
1. Internal SCSI channel A (J29)
2. Internal SCSI channel B (J17)
3. Fan 3 (J35)
4. Main Power (J4)
5. Power (J51)
6. Fan 1 (J59)
7. 3.3V power for optional backplane (J52)
8. Power system management (J12)
9. DASD (SCSI) system management (J5)
10. Fan 2 (J60)
11. Operator information panel (J50)
12. On-off / Reset panel (J38)
13. IDE (J31)
14. Diskette (J26)
System board external port connectors
The following illustration shows the external port connectors in the system board.
1. Parallel port (J22)
2. Video / Advanced System Management Process or port (J13)
3. USB ports (J11)
4. Ethernet ports (J9)
5. Keyboard / mouse port (J6)
6. Serial ports (J3)
System board switches and jumpers
The following illustration identifies the switches and jumpers on the system board.
1. System board switch block (SW1)
2. Boot block jumper (J37)
System board jumper blocks
Any jumper blocks on the system board that are not shown in the illustration are reserved. For normal operation of the system, no jumpers should be installed on any of the jumper blocks. See Recovering BIOS in the HMM for information about the boot block jumper.
System board switch block
The switch block contains microswitches 1-8. As shown in this illustration, switch 8 is at the top of the switch block and switch 1 is at the bottom. The following table describes each switch.
| Table 7. Switches 1-8 | |
|---|---|
| Switch number | Description |
| 1-4 | Microprocessor speed setting. See Table 8. |
| 5 | Power-on override. When On, overrides the power-on switch and forces power-on mode. The system will always boot without the use of the power-on switch. The default setting is Off (disabled). |
| 6 | Clock frequency selection. When On, sets the host bus speed to 100 MHz. When Off, the host bus speed is 133 MHz. The default setting is Off. |
| 7 | Reserved. The default setting is Off. |
| 8 | Password override. When On, bypass the power-on password. When Off, require the user to enter the power-on password at startup, if one is set. The default setting is Off. |
| Table 8. Microprocessor speed settings | ||||
|---|---|---|---|---|
| Microprocessor speed | Switch1 | Switch 2 | Switch 3 | Switch 4 |
| 667/133 | On | On | Off | Off |
| 733/133 | On | Off | Off | Off |
| 800/133 | Off | On | On | On |
| 866/133 | Off | Off | On | On |
| 933/133 | Off | On | Off | On |
Note: The speed settings shown above apply only to unlocked processors. If the processors are produc-tion level they are locked and there is no need to change the speed settings.
System board LED locations
The following illustration identifies LEDs on the system board. You might need to refer to this figure when solving problems with the server.
1. Secondary microprocessor failure (CR7)
2. Primary microprocessor failure (CR1)
3. Voltage regulator module (VRM2) failure (CR16)
4. Integrated voltage regulator (VRM1) failure (CR4)
5. Diagnostics panel (See Table 6)
6. Advanced System Management Processor error (CR70)
7. Power-on (CR56)
8. DIMM1 failure (CR21)
9. DIMM2 failure (CR28)
10. DIMM3 ailure (CR18)
11. DIMM4 failure (CR20)
| Table 9. Diagnostics panel LEDs | ||
|---|---|---|
| CR | LED | Description |
| 29 | PS1 | Power supply 1 failure |
| 30 | PS2 | Power supply 2 failure |
| 31 | PS3 | Not used |
| 32 | NON | Non-redundant power |
| 33 | OVER | Overspecification. The system has exceeded the power cababilities of the installed power supply units. |
| 34 | NMI | Non-makable-interrupt occurred |
| 22 | TEMP | System temperature exceeded maximum rating |
| 23 | FAN | A fan failed or is operating slowly |
| 24 | MEM | Memory failure. One or more dual inline memory modules (DIMMS) failed |
| 25 | CPU | Microprocessor failure. One or both microprocessors failed |
| 26 | PCI 1 | Error on primary PCI chaneel (A) or system board |
| 27 | PCI 2 | Error on secondary PCI channel (B) or system board |
| 58 | VRM | Error on voltage regulator modeule or on integrated voltage regulator |
| 53 | DASD 1 | SCSI bus A failure. The SCSI backplane (if any) or a device connected to SCSI bus A failed. |
| 57 | DASD 2 | SCSI bus B failure. The SCSI hot-swap disk drive backplane on SCSI bus B failed. |
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Modified date:
23 January 2019
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