Digital Equipment DECstation 5000/100 Series, Maintenance Manual

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How to Use the Transmit and Receive Test . . . . . . . . . . . 4–35
Example: SCC transmit and receive test error
messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–36
How to Use the Pins Test . . . . . . . . . . . . . . . . . . . . . . . . . . 4–37
Example: Pins test error messages . . . . . . . . . . . . 4–37
Troubleshooting the Power Supply . . . . . . . . . . . . . . . . . . . . . . 4–38
Troubleshooting If the System Unit Overheats . . . . . . . . . . .
4–39
Troubleshooting the Keyboard and Mouse . . . . . . . . . . . . . . . . 4–42
Troubleshooting When ULTRIX Is Running but the Monitor
Has No Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–44
Troubleshooting with ULTRIX Error Logs . . . . . . . . . . . . . . . 4–47
To Interpret Error Log Event Types . . . . . . . . . . . . . . . . . . 4–47
To Interpret Physical Address Registers . . . . . . . . . . . . . . 4–48
For Further Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–50
Troubleshoot Daughter Card LEDs . . . . . . . . . . . . . . . . . . . . . 4–50
5 Base System FRUs
System Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2
System Module HardwareDescription . . . . . . . . . . . . . . . . 5–2
Removing and Installing a System Module . . . . . . . . . . . . 5–3
How to remove the system module . . . . . . . . . . . . . 5–4
How to install a system module . . . . . . . . . . . . . . . 5–6
Removing and Installing an ESAR Chip on the System
Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–7
How to remove and install an ESAR chip . . . . . . . 5–8
CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–9
CPU Module Hardware Description . . . . . . . . . . . . . . . . . .
5–9
Removing and Installing a CPU Module . . . . . . . . . . . . . . 5–13
How to remove a CPU module . . . . . . . . . . . . . . . . 5–14
How to install a CPU module . . . . . . . . . . . . . . . . . 5–14
Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–15
Memory Module Hardware Description . . . . . . . . . . . . . . . 5–15
Removing and Installing Memory Modules . . . . . . . . . . . . 5–21
How to remove a memory module . . . . . . . . . . . . . 5–22
How to install a memory module . . . . . . . . . . . . . . 5–24
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–26
Power Supply Hardware Description . . . . . . . . . . . . . . . . . 5–26
Removing and Installing the Power Supply . . . . . . . . . . . 5–28
How to remove the power supply . . . . . . . . . . . . . . 5–29
How to install the power supply . . . . . . . . . . . . . . . 5–29
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