HP FL939UT User Manual Page 204
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Table 6-8 Diagnostic lights and audible codes
Activity Possible cause Recommended action
Blue Power LED
*
on. No
beeps.
Workstation on.
N/A
Blue Power LED
*
blinks
every two seconds.
*
No
beeps.
Workstation in Sleep mode
(S3-Suspend to RAM).
Select models only.
Blue Power LED
*
is off.
*
No
beeps.
Workstation in Hibernate
mode (S4-Suspend to disk).
Blue Power LED
*
blinks
three times*, once per
second.
*
No beeps.
Workstation in Sleep mode
(S3-Suspend to RAM).
Select models only.
Blue Power LED
*
blinks four
times*, once per second.
*
No
beeps.
Workstation in Hibernate
mode (S4-Suspend to disk).
*User-selectable. See The Computer Setup (F10) Utility
menu on page 34for details.
For the following LED activity and beeps, the beeps are heard through the chassis speaker. Blinks and beeps repeat for 5 cycles, after
which, only the blinks continue to repeat.
Red Power LED blinks two
times, once every second,
followed by a two-second
pause. Two beeps.
CPU thermal protection
activated by either of the
following methods:
●
A fan might be blocked
or not turning.
●
The heatsink and fan
assembly is not
properly attached to the
CPU.
CAUTION: Internal components might be powered even when the
workstation is off. To prevent damage, disconnect the workstation power
cord before you remove a component.
1. Ensure that the workstation air vents are not blocked and the cooling
fan is running.
2. Open the access panel, press power button, and verify that the CPU
fan is spinning. If the CPU fan is not spinning, make sure the fan
cable is plugged into the system board header. Ensure the fan is
fully and properly seated or installed.
3. If fan is plugged in and seated properly, but is not spinning, the
problem might be in the CPU fan. Contact HP for assistance.
4. Verify that the fan assembly is properly attached. If problems persist,
there might be a problem with the CPU heatsink. Contact HP for
assistance.
Red Power LED blinks three
times, once every second,
followed by a two-second
pause. Three beeps.
CPU not installed (not an
indicator of bad CPU).
1. Verify that the CPU is present.
2. Reseat the CPU.
192 Chapter 6 Diagnostics and troubleshooting ENWW
- HP 800 Workstation 1
- About this guide 3
- Table of contents 5
- 1 Workstation overview 13
- Processor technology 14
- Memory technology 14
- Graphics 14
- Expansion card slots 14
- Addition features 14
- Workstation components 15
- Chassis components 16
- Front panel components 17
- Rear panel components 18
- Specifications 19
- Environmental specifications 20
- Power supply description 21
- Power supply currents 22
- Power supply specifications 23
- Resetting the power supply 24
- Features 25
- ENERGY STAR Qualification 27
- EUP compliance mode 28
- Accessibility 28
- Hyper-threading 29
- Intel Turbo Boost Technology 29
- HP Cool Tools 29
- Setting up Novell SLED 33
- Updating the workstation 33
- Determining current BIOS 34
- Upgrading device drivers 35
- Restore methods 36
- Ordering backup software 37
- Restoring Windows Vista 37
- Creating RestorePlus! media 38
- Restoring Novell SLED 40
- ENWW Restoring Novell SLED 29 41
- 4 System management 42
- Workstation management 54
- Installing a remote system 55
- Replicating the setup 56
- HP Client Manager Software 58
- System Software Manager 59
- Proactive Change Notification 59
- Subscriber's Choice 59
- ROM Flash 60
- FailSafe Boot Block ROM 61
- Workstation security 62
- SATA hard disk drive security 63
- Password security 66
- Chassis security 70
- Drive Protection System 72
- ECC fault prediction 72
- Thermal sensors 72
- Dual-state power button 73
- 5 Replacing components 74
- Warnings and cautions 75
- Service considerations 76
- Grounding the work area 78
- Cables and connectors 79
- Customer self-repair 80
- Component locations 82
- Disassembly order 84
- Predisassembly procedures 85
- Cable lock (optional) 86
- Side access panel 87
- Airflow guide 88
- Expansion card support 89
- Right side panel 92
- Power supply 92
- Installing the power supply 93
- Removing the speaker 93
- Installing the speaker 94
- Power connections 96
- Front bezel 97
- Item Description 100
- 1 Front audio 100
- 2 Front 1394a 100
- 3 Front USB 100
- Power switch cable assembly 102
- Optical bay filler tray 103
- Installing a filler tray 105
- Optical disk drive 106
- Hard disk drive 117
- System fans 142
- Memory fans 148
- Installing the memory fans 149
- DIMM installation guidelines 150
- Supported DIMM configurations 150
- BIOS errors and warnings 151
- Removing a DIMM 152
- Installing a DIMM 153
- PCIe card 159
- Installing a PCIe card 160
- PCI card 162
- Installing a PCI card 163
- CPU heatsink 165
- Installing the CPU heatsink 167
- Removing a CPU 169
- Installing a CPU 170
- System board 171
- Installing the system board 173
- Removing the battery 173
- Product recycling 175
- Calling technical support 177
- Locating ID labels 177
- Locating warranty information 178
- Diagnosis guidelines 179
- Troubleshooting checklist 180
- HP Help and Support Center 182
- E-support 182
- Helpful hints 183
- During operation 184
- Solving minor problems 185
- Solving power supply problems 186
- Solving diskette problems 188
- Solving hard drive problems 189
- Solving display problems 191
- Solving audio problems 193
- Solving printer problems 194
- Overview 195
- User interface 197
- Test tab 199
- Status tab 201
- History tab 201
- Errors tab 201
- Help tab 202
- Diagnostic codes and errors 203
- LED color definitions 207
- POST error messages 208
- 7 Configuring RAID devices 214
- Configuring SATA RAID devices 215
- Configuring system BIOS 216
- Creating RAID volumes 217
- Deleting RAID volumes 218
- Configuring SAS RAID devices 219
- SAS RAID 0 configuration 220
- SAS RAID 1 configuration 221
- SAS RAID 1E configuration 222
- Resetting the password jumper 224
- A Connector pins 227
- ENWW 217 229
- ENWW 219 231
- ENWW 221 233
- ENWW 223 235
- B System board designators 237
- C Routine Care 239
- Cleaning the monitor 240
- Cleaning the mouse 240
- D Locating HP resources 241
- Product information 242
- Product support 243
- Product documentation 244
- Product diagnostics 245
- Product updates 246
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