HP EliteDesk 800 G4 Base Model Small Form Factor PC Bedienungsanleitung PDF herunterladen (Seite 120)

Control panel message Description Recommended action

90B-Fan Failure The system has detected that a cooling fan is

not operating correctly.

1. Reseat fan.

2. Reseat fan cable.

3. Replace fan.

90D-System Temperature Thermal shutdown occurred. The system BIOS

has detected your machine was previously shut

down to avoid overheating. Overheating may

occur if the cooling vents are blocked or the

operating temperature exceeds the system

specications. The machine should return to

normal operation once the situation is resolved.

Make sure system has proper airow.

90E-Power Supply Fan Not detected Power supply fan is not connected or may have

malfunctioned.

1. Reseat power supply fan.

2. Reseat fan cable.

3. Replace power supply fan.

910–Filter Warning Airow lter is dirty. Replace the airow lter.

Interpreting system validation diagnostic front panel LEDs and

audible codes

During the system validation phase that occurs at system startup, the BIOS validates the functionality of the

following subsystems and conditions:

●

AC adapter

●

System board power

●

Processor failure

●

BIOS corruption

●

Memory failure

●

Graphics failure

●

System board failure

●

BIOS authentication failure

If an error is detected, specic patterns of long and short blinks, accompanied by long and short beeps (where

applicable) are used to identify the error. These patterns will make up a two part code:

●

Major – the category of the error

●

Minor – the specic error within the category

NOTE: Single beep/blink codes are not used.

Number of long beeps/blinks Error category

1 Not used

2 BIOS

3 Hardware

112 Chapter 7 POST error messages and diagnostic front panel LEDs and audible codes

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 143 144

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