IBM PS/2 N51 SX Hardware Maintenance Service page 31

10.1 No-Beep Symptoms
+------------------------------------------------------------------------+
¦ Symptom/Error
+------------------------------------+-----------------------------------¦
¦ No beep and a blank or unreadable
¦ display during POST.
¦ (See "Power Supply" in topic 5.0
¦ before replacing any FRUs.)
¦
+------------------------------------+-----------------------------------¦
¦ No beep with a blinking cursor.
¦
+------------------------------------+-----------------------------------¦
¦ No beep with a normal display
¦ during POST.
¦
¦
+------------------------------------+-----------------------------------¦
¦ No beep and the system hangs up
¦ after displaying memory count.
¦
+------------------------------------------------------------------------+
IBM PS/2 Model N51 SX HMS
No-Beep Symptoms
¦ FRU/Action
¦ System Board
¦ Any option or device
¦ Power source when failing
¦ Voltage Converter
¦ Speaker
¦ System Board
¦ Communications Cartridge
¦ Speaker
¦ I/O Panel Assembly
¦ System Board
¦ Keyboard Control Card
¦ System Board
¦ Communications Cartridge
¦ Hard Disk Drive
¦ Copyright IBM Corp. 1991
10.1 - 1
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