44CHAPTER 5: TROUBLESHOOTING
Illegible Characters | If the system operates normally after the system runs the POST, the | |
Display on the | information is displayed on the console terminal. If the configuration system has a | |
Terminal after | fault, the terminal may display only illegible characters. | |
| If the console terminal displays illegible characters after the POST, verify that the | |
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| HyperTerminal parameters are set properly, as follows: | |
| ■ | Baud — 9600 |
| ■ Data bits — 8 | |
| ■ Stop bit — 1 | |
| ■ | Parity — None |
| ■ Flow control — None | |
| ■ Terminal emulation — VT100 | |
| If the parameter settings do not match these values, reconfigure them. | |
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Repeated Reboot | There are two possible situations in which the system reboots repeatedly: | |
| ■ | After Now testing memory... displays |
| ■ | After System now is starting... displays, the system restarts repeatedly and |
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| displays, Copied program error. |
Repeated reboots are caused by damage to the SDRAM. You can check whether the SDRAM has a fault by checking the LED status of the router. During the POST, the SLOT0 – SLOT2 LEDs and SERIAL0 LED light first. If the SLOT0 and SLOT1 LEDs are on instead, the SDRAM test has failed.
If the SDRAM is damaged, you must replace it. See “Replacing the SDRAM” on page 82.
Troubleshooting SICs The LEDs on the Router 5000 Family routers indicate whether the modules are
and MIMsproperly installed. After the installation of a module, turn on the power and check the corresponding LED on front panel of the router. If the LEDs are on, the POST was successful and the router is working normally. If the LEDs are off, the POST has failed. You can test it using the following steps:
■Check that the port cable matches the port.
■Verify that the module is in normal operation by observing its LEDs .
■Use the display command to check whether the module or interface module has accepted the configuration.
All LEDs of the Encryption Accelerator MIM Remain off after Startup
After startup, all LEDs should blink once. If all indictors are off, the module or hardware on the module has not powered on. Check whether the power of the integrated equipment is properly connected.
If the power of the integrated equipment is in normal operation, the fuse of the module may have burnt out or the Complex Programmable Logic Device (CPLD)
