Compaq dc7100 HP Compaq dc71xx and dx61xx Series Business Desktop Computers Te - Page 153
Boot Error Codes, Table 8-2
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BIOS ROM 8.3.4 Boot Error Codes The BIOS provides visual and audible indications of a failed system boot by using the LEDS on the PS/2 keyboard and the system board speaker. The error conditions are listed in the following table. Table 8-2 Boot Error Codes Visual [1] Audible Meaning Num Lock LED blinks 1 short, 2 long beeps System memory not present or incompatible. Scroll Lock LED blinks 2 long, 1 short beeps Hardware failure before graphics initialization. Caps Lock LED blinks 1 long, 2 short beeps Graphics controller not present or failed to initialize. Num, Caps, Scroll Lock LEDs 1 long, 3 short beeps blink ROM failure. Num, Caps, Scroll Lock LEDs none blink in sequence Network service mode NOTE: [1] Provided with PS/2 keyboard only. Technical Reference Guide 361834-002 8-5