HP EliteBook 745 Maintenance and Service Guide - Page 89

The red LED blinks to represent the major error category long blinks. The white LED blinks to represent

Get HP EliteBook 745 PDF manuals and user guides View all HP EliteBook 745 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 89 highlights

The red LED blinks to represent the major error category (long blinks). The white LED blinks to represent the minor error category (short blinks). For example, 3.5 indicates 3 long red blinks and 5 short white blinks to communicate the processor is not detected. Table 7-2 Front panel LEDs and audible code indications Component tested Major/ minor code Error condition Notebook Caps Lock/Num Lock LED Desktop Action BIOS 2.2 The main area (DXE) of BIOS has CAP/NUM 2.2 - Power Follow the Crisis Recovery instructions at become corrupted and there is Blink = 2 LED http://support.hp.com/us-en/document/ no recovery binary image (red.white) c02693833/. available 2.3 The embedded controller policy CAP/NUM 2.3 - Power If you want an analysis of the event that requires the user to enter a key Blink = 8 LED caused Sure Start recovery, replace the sequence (SureStart 2.0) (red.white) board and send the bad board back. Otherwise, press this key combination to restore BIOS and boot: Up Arrow + Down Arrow + Esc. 2.4 The embedded controller is Battery LED 2.4 - Power Wait for DXE recovery to complete. recovering the boot block or White and LED DXE. Because it takes 10 sec or Amber (red.white) so to load the DXE image and get blinking video in the DXE case, this blink code is necessary. (SureStart) Hardware 3.2 The embedded controller has CAP/NUM 3.2 - Power System board replacement. timed out waiting for BIOS to Blink = 3 LED return from memory (red.white) initialization 3.3 The embedded controller has CAP/NUM 3.3 - Power If the system has an MXM module, try a timed out waiting for BIOS to Blink = 4 LED different MXM module. Otherwise, the return from graphics (red.white) board most likely needs to be replaced. initialization ( 4/13- Graphics adaptor not found) 3.4 The system board displays a CAP/NUM 3.4 - Power System board replacement. power failure (crowbar) * Blink = 5 LED (red.white) System board 5.2 The embedded controller cannot CAP/NUM 5.2 - Power System board replacement. find valid firmware Blink = 7 (2 LED BB failure) (red.white) Battery LED Blinking = 1 Hz (3 B failure) 5.3 The embedded controller has CAP/NUM Not System board replacement. timed out waiting for the BIOS Blink = 1 implemented 79

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
The red LED blinks to represent the major error category (long blinks). The white LED blinks to represent the
minor error category (short blinks). For example,
3.5
indicates 3 long red blinks and 5 short white blinks to
communicate the processor is not detected.
Table 7-2
Front panel LEDs and audible code indications
Component
tested
Major/
minor
code
Error condition
Notebook
Caps
Lock/Num
Lock LED
Desktop
Action
BIOS
2.2
The main area (DXE) of BIOS has
become corrupted and there is
no recovery binary image
available
CAP/NUM
Blink = 2
2.2 - Power
LED
(red.white)
Follow the Crisis Recovery instructions at
us-en/document/
c02693833/
.
2.3
The embedded controller policy
requires the user to enter a key
sequence (SureStart 2.0)
CAP/NUM
Blink = 8
2.3 - Power
LED
(red.white)
If you want an analysis of the event that
caused Sure Start recovery, replace the
board and send the bad board back.
Otherwise, press this key combination to
restore BIOS and boot: Up Arrow + Down
Arrow + Esc.
2.4
The embedded controller is
recovering the boot block or
DXE. Because it takes 10 sec or
so to load the DXE image and get
video in the DXE case, this blink
code is necessary. (SureStart)
Battery LED
White and
Amber
blinking
2.4 - Power
LED
(red.white)
Wait for DXE recovery to complete.
Hardware
3.2
The embedded controller has
timed out waiting for BIOS to
return from memory
initialization
CAP/NUM
Blink = 3
3.2 - Power
LED
(red.white)
System board replacement.
3.3
The embedded controller has
timed out waiting for BIOS to
return from graphics
initialization ( 4/13- Graphics
adaptor not found)
CAP/NUM
Blink = 4
3.3 - Power
LED
(red.white)
If the system has an MXM module, try a
different
MXM module. Otherwise, the
board most likely needs to be replaced.
3.4
The system board displays a
power failure (crowbar) *
CAP/NUM
Blink = 5
3.4 - Power
LED
(red.white)
System board replacement.
System
board
5.2
The embedded controller cannot
find
valid
firmware
CAP/NUM
Blink = 7 (2
BB failure)
Battery LED
Blinking = 1
Hz (3 B
failure)
5.2 - Power
LED
(red.white)
System board replacement.
5.3
The embedded controller has
timed out waiting for the BIOS
CAP/NUM
Blink = 1
Not
implemented
System board replacement.
79