HP Z210 HP Z210 CMT Workstation Maintenance and Service Guide - Page 149

Diagnostic lights and audible codes continued

Get HP Z210 PDF manuals and user guides View all HP Z210 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 149 highlights

Table 6-7 Diagnostic lights and audible codes (continued) Activity Possible cause Recommended action Red Power LED blinks four times, once every second, followed by a two-second pause. Four beeps. Power failure (power supply is overloaded) CAUTION: Internal components might be powered even when the computer is off. To prevent damage, disconnect the computer power cord before you remove a component. 1. Open the access panel and ensure that all power connections (20pin Main, 4-pin CPU) are secure on the system board. 2. Check if a device is causing the problem by removing all attached devices (such as hard, diskette, or optical disk drives, and expansion cards.) Power on the computer. If the system enters the POST, power off and replace one device at a time; repeat this procedure until failure occurs. Replace the device that is causing the failure. Continue adding devices one at a time to ensure all devices are functioning properly. Red Power LED blinks five times, once every second, followed by a two-second pause. Five beeps. Pre-video memory error CAUTION: Internal components might be powered even when the computer is off. To prevent damage, disconnect the computer power cord before you remove a component. 1. Reseat DIMMs. 2. Replace DIMMs one at a time to isolate faulty module. 3. Replace third-party memory with HP memory. 4. The problem might be on the system board. Contact HP for assistance. Red Power LED blinks six times, once every second, followed by a two-second pause. Six beeps. Pre-video graphics error. CAUTION: Internal components might be powered even when the computer is off. To prevent damage, disconnect the computer power cord before you remove a component. 1. Reseat the graphics card. 2. Verify the graphics auxiliary power cable is connected (if applicable). 3. Insert the graphics card into another available slot. 4. The problem might be on the graphics card. Contact HP for assistance. Red Power LED blinks seven times, once every second, followed by a two- second pause. Seven beeps. System board failure (ROM detected failure prior to video). 1. Clear CMOS. NOTE: Refer to the Configuring password security and resetting CMOS on page 150 section for detailed information on clearing CMOS. 2. The problem might be on the system board. Contact HP for assistance. ENWW Diagnostic codes and errors 137

  • 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
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
Table 6-7
Diagnostic lights and audible codes (continued)
Activity
Possible cause
Recommended action
Red Power LED blinks four
times, once every second,
followed by a two-second
pause. Four beeps.
Power failure (power supply
is overloaded)
CAUTION:
Internal components might be powered even when the
computer is off. To prevent damage, disconnect the computer power
cord before you remove a component.
1.
Open the access panel and ensure that all power connections (20-
pin Main, 4-pin CPU) are secure on the system board.
2.
Check if a device is causing the problem by removing
all
attached
devices (such as hard, diskette, or optical disk drives, and
expansion cards.) Power on the computer. If the system enters the
POST, power off and replace one device at a time; repeat this
procedure until failure occurs. Replace the device that is causing the
failure. Continue adding devices one at a time to ensure all devices
are functioning properly.
Red Power LED blinks five
times, once every second,
followed by a two-second
pause. Five beeps.
Pre-video memory error
CAUTION:
Internal components might be powered even when the
computer is off. To prevent damage, disconnect the computer power
cord before you remove a component.
1.
Reseat DIMMs.
2.
Replace DIMMs one at a time to isolate faulty module.
3.
Replace third-party memory with HP memory.
4.
The problem might be on the system board. Contact HP for
assistance.
Red Power LED blinks six
times, once every second,
followed by a two-second
pause. Six beeps.
Pre-video graphics error.
CAUTION:
Internal components might be powered even when the
computer is off. To prevent damage, disconnect the computer power
cord before you remove a component.
1.
Reseat the graphics card.
2.
Verify the graphics auxiliary power cable is connected (if
applicable).
3.
Insert the graphics card into another available slot.
4.
The problem might be on the graphics card. Contact HP for
assistance.
Red Power LED blinks seven
times, once every second,
followed by a two- second
pause. Seven beeps.
System board failure (ROM
detected failure prior to
video).
1.
Clear CMOS.
NOTE:
Refer to the
Configuring password security and resetting
CMOS
on page
150
section for detailed information on clearing
CMOS.
2.
The problem might be on the system board. Contact HP for
assistance.
ENWW
Diagnostic codes and errors
137