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Propping Up the Power Supply

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ﬁeld replaceable units FRU removal and replacement the power supply is propped in the upright position as shown in Figure 4-8. Note that the bail automatically springs into the bail lock to secure the power supply. Figure 4-8. Propping Up the Power Supply Bail Lock Bail Power Supply Bail closing the system Once you have completed the task you set out to perform, you are ready to close the system. To close the system follow these steps: 1. Push slightly back on the power supply until you are able to remove the bail from the bail lock. Using the power supply handle lower it downward into its original operating position. See Figure Figure 4-7. 2. Tighten both captive screws in place as seen in Figure 4-7. 3. Replace the left side panel of the system unit as shown in the section "closing the left side panel of the system unit" in this chapter. removing the power supply To remove the power supply follow these steps: 1. Follow the steps covered in the section "propping up the power supply." 2. Disconnect both power cables from the system board, the control cable, and the power cable for the SCA disk drives. See Figure 4-9. Note that these cables are keyed to prevent you from incorrectly plugging them in when you replace the power supply. Chapter 4 103

Section	Page
service handbook	1
service handbook	1
service handbook	1
hp workstation c-class	1
Manufacturing Part Number: n/a	1
Printed in USA October 2001	1
Edition E1001	1
notice	2
notice	2
hewlett-packard warranty statement	2
hewlett-packard warranty statement	2
1. HP warrants HP hardware, accessories and supplies against defects in materials and workmanship...	2
1. HP warrants HP hardware, accessories and supplies against defects in materials and workmanship...	2
2. HP warrants that HP software will not fail to execute its programming instructions, for the pe...	2
3. HP does not warrant that the operation of HP products will be uninterrupted or error free. If ...	2
4. HP products may contain remanufactured parts equivalent to new in performance or may have been...	2
5. The warranty period begins on the date of delivery or on the date of installation if installed...	2
6. Warranty does not apply to defects resulting from (a) improper or inadequate maintenance or ca...	2
7. TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY O...	3
8. HP will be liable for damage to tangible property per incident up to the greater of $300,000 o...	3
9. TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS WARRANTY STATEMENT ARE CUSTOMER’S SOL...	3
restricted rights legend	3
restricted rights legend	3
printing history	4
printing history	4
1 product information	17
1 product information	17
• Product description	18
• Product description	18
• System unit front panel controls	18
• System unit rear panel connectors	18
• Monitor information	18
• Keyboard and Mouse information	18
• Operating System Overview	18
Product Description	19
Product Description	19
• Processor:	19
• Processor:	19
• Operating System:	19
• User Interface:	19
• Monitors:	19
• Optional Graphics:	19
• Main Memory:	19
• Internal Storage Devices:	19
• Standard Network:	19
• Standard I/O Ports:	19
• Optional I/O:	20
• Keyboard:	20
• Mouse:	20
system unit front panel controls	21
system unit front panel controls	21
Figure11. System Unit Front Panel Controls	21
Figure11. System Unit Front Panel Controls	21
<GRAPHIC>	21
LCD:location	21
LCD:location	21
LCD:symbols	22
LCD:symbols	22
LCD:symbols	22
<GRAPHIC>	22
Power switch:soft power down procedure	22
Power switch:soft power down procedure	22
Storage Device:controls and features	22
Storage Device:controls and features	22
Storage Device:controls and features	22
NOTE You cannot have two internal storage devices of the same type. For example, you cannot have ...	22
Figure 13.	22
Storage device:CD drive	23
Storage device:CD drive	23
Storage device:CD drive	23
<GRAPHIC>	23
Table11. CD Drive Controls	23
<TABLE HEADING>	23
<TABLE ROW>	23
Control/Feature	23
Purpose	23
<TABLE BODY>	23
<TABLE ROW>	23
Eject Button	23
Press to open the Disc Tray and insert or remove a disc. When the drive is in use, press the ejec...	23
<TABLE ROW>	23
Emergency Eject	23
If the workstation does no have power, you can insert the end of a paper clip into this small hol...	23
<TABLE ROW>	23
Disk Tray	23
The Disk Tray holds the CD. This style of CD drive does not use a disk caddy.	23
<TABLE ROW>	23
Busy Indicator	23
Lights during a data access operation and blinks during a data transfer. The indicator blinks ini...	23
• A defective disc	23
• A defective disc	23
• A disc insertion error (for example, an upside down disc)	23
• No disc present	23
NOTE The audio features of the CD drive are supported through applications only. One such applica...	23
Figure 14.	24
Figure14. Floppy Drive Controls and Features	24
Figure14. Floppy Drive Controls and Features	24
<GRAPHIC>	24
Table12. Floppy Drive Controls and Features	24
<TABLE HEADING>	24
<TABLE ROW>	24
Control/Feature	24
Purpose	24
<TABLE BODY>	24
<TABLE ROW>	24
Floppy Drive Eject Button	24
Push the eject button to remove floppy diskettes from the drive.	24
<TABLE ROW>	24
Floppy Drive Activity LED	24
The floppy drive LED flashes to indicate the drive is in use.	24
security lock	24
security lock	24
System Unit Rear Panel Connectors	25
System Unit Rear Panel Connectors	25
• Two serial ports (RS-232)	25
• Two serial ports (RS-232)	25
• Two Universal Serial Bus ports (USB)	25
• LAN connector, 10 BaseT/100 BaseT	25
• HP parallel IEEE 1284 (printer) connector	25
• Audio connectors (PCI based, line in, line out, headset, and microphone in)	25
• Ultra2 Wide LVD (Low Voltage Differential) SCSI	25
• Ultra Narrow Single-Ended (NSE) SCSI	25
• TOC (transfer of control) button	25
• AC power cord connector	25
• Security loop	25
NOTE To maintain FCC/EMI compliance, verify that all cables are fully seated and properly fastened.	25
Figure15. System Unit Rear Panel Connectors	25
Figure15. System Unit Rear Panel Connectors	25
<GRAPHIC>	26
Rear Panel Connectors:audio connectors	26
Rear Panel Connectors:audio connectors	26
NOTE Hewlett-Packard recommends using gold-plated plugs available through audio retailers for bes...	26
Figure16. Audio Connectors	26
Figure16. Audio Connectors	26
<GRAPHIC>	26
<TABLE>	27
Table13. Audio Electrical Specifications	27
<TABLE BODY>	27
<TABLE ROW>	27
Frequency Response	27
25 to 20KHz	27
<TABLE ROW>	27
Input Sensitivity/Impedance	27
<TABLE ROW>	27
Line in	27
2.0V pk/47kohm	27
<TABLE ROW>	27
Microphone in	27
22mVpk/1kohm	27
<TABLE ROW>	27
Max Output Level/Impedance	27
<TABLE ROW>	27
Line Out	27
2.8Vpp/47kohm	27
<TABLE ROW>	27
Headphone	27
2.75Vpp/50ohm	27
<TABLE ROW>	27
Speaker (internal)	27
5.88Vpp/48ohm	27
<TABLE ROW>	27
Output Impedance	27
<TABLE ROW>	27
Line Out	27
619ohm	27
<TABLE ROW>	27
Headphone	27
118ohm	27
USB connectors	27
USB connectors	27
The USB connectors located on the rear panel of the workstation provide an interface for the keyb...	27
CAUTION Usage of devices other than USB specification may result in unpredictable functionality a...	27
NOTE The USB clip on the rear of the chassis provides strain relief for the USB cables.	27
Rear Panel Connectors:parallel	27
Rear Panel Connectors:parallel	27
Rear Panel Connectors:parallel	27
The 25-pin HP Parallel I/O interface uses IEEE 1284 I/O interface protocols to support peripheral...	27
Rear Panel Connectors:network	27
Rear Panel Connectors:network	27
Rear Panel Connectors:network	27
Rear Panel Connectors:serial	28
Rear Panel Connectors:serial	28
Rear Panel Connectors:serial	28
Table 14.	28
<TABLE>	28
Table14. Serial I/O Pins	28
<TABLE HEADING>	28
<TABLE ROW>	28
Pin No.	28
Signal	28
Description	28
<TABLE BODY>	28
<TABLE ROW>	28
1	28
DCD	28
Data Carrier Detect	28
<TABLE ROW>	28
2	28
RXD	28
Receive Data	28
<TABLE ROW>	28
3	28
TXD	28
Transmit Data	28
<TABLE ROW>	28
4	28
DTR	28
Data Terminal Ready	28
<TABLE ROW>	28
5	28
GND	28
Ground	28
<TABLE ROW>	28
6	28
DSR	28
Data Set Ready	28
<TABLE ROW>	28
7	28
RTS	28
Request To Send	28
<TABLE ROW>	28
8	28
CTS	28
Clear To Send	28
<TABLE ROW>	28
9	28
RI	28
Ring Indicator	28
SCSI:connectors	28
SCSI:connectors	28
SCSI:connectors	28
NOTE There must ALWAYS be a terminator at both ends of a SCSI bus. This means one internal termin...	28
Rear Panel Connectors:TOC	29
Rear Panel Connectors:TOC	29
Rear Panel Connectors:TOC	29
Rear Panel Connectors:power cord	29
Rear Panel Connectors:power cord	29
Rear Panel Connectors:power cord	29
Rear Panel Connectors:security loop	29
Rear Panel Connectors:security loop	29
Rear Panel Connectors:security loop	29
1. Inspect left side panel for proper seating in the mainframe chassis.	29
1. Inspect left side panel for proper seating in the mainframe chassis.	29
2. Push in the retractable pin on the spring loaded square fastener.	29
3. Insert the locking device through the top and bottom holes of the square fastener.	29
4. Inspect after locking device is in place to assure that the retractable pin is captured in the...	29
NOTE A locking device is not supplied with the workstation; the customer must supply a lock to us...	29
Figure17. Security Loop Operation	30
Figure17. Security Loop Operation	30
<GRAPHIC>	31
monitor information	31
• 19-inch, 1280¥1024 color monitor (A4575A)	31
• 19-inch, 1280¥1024 color monitor (A4575A)	31
• 19-inch, 1600¥1200 color monitor (A4575A)	31
• 21-inch, 1280¥1024 color monitor (A4576A)	31
• 21-inch, 1600¥1200 color monitor (A4576A)	31
• HP A4575A Color Monitor CE Handbook	31
• HP A4575A Color Monitor CE Handbook	31
• HP A4575A Color Monitor CE Handbook	31
NOTE Note that the word “multi-sync” is used as a common word to refer to “multi-frequency” and/o...	31
NOTE The connection to earlier HP monitors with 15-pin mini-DSub cables can be made using the A41...	31
USB:support	32
USB:support	32
USB:support	32
USB keyboard	32
USB keyboard	32
NOTE HIL and PS/2 devices are not supported by the c-class workstations.	32
USB hp scroll mouse	32
USB hp scroll mouse	32
hp hub for USB devices	32
hp hub for USB devices	32
operating system overview	33
operating system overview	33
operating system overview	33
http://www.docs.hp.com/	33
memory	34
memory	34
Memory:failures	34
Memory:failures	34
Memory:failures	34
DIMM:memory failures	34
2 configuration	35
2 configuration	35
chapter overview	36
chapter overview	36
• Workstation Configurations	36
• Workstation Configurations	36
• Field Replaceable Unit (FRU) Configurations	36
Configuration:workstation	37
Configuration:workstation	37
Configuration:workstation	37
http://hp.unixworkstations.com	37
Configuration:FRU	38
Configuration:FRU	38
Configuration:FRU	38
internal storage configurations	38
internal storage configurations	38
Configuration:hard disk drive	38
Configuration:hard disk drive	38
Configuration:hard disk drive	38
NOTE There must ALWAYS be a terminator at both ends of a SCSI bus. This means one internal termin...	38
<TABLE>	38
Table21. Default Device IDs TABLE	38
<TABLE HEADING>	38
<TABLE ROW>	38
Ultra2 Wide Low-Voltage Differential SCSI	38
<TABLE BODY>	38
<TABLE ROW>	38
1st Hard Disk Drive	38
ID6	38
<TABLE ROW>	38
2nd Hard Disk Drive	38
ID5	38
<TABLE ROW>	38
DDS Drive, external optional device	38
ID3	38
<TABLE ROW>	38
** Do not assign SCSI ID7 to any internal storage device.	38
Figure21. Hard Drive, 9Gbyte/18Gbyte Ultra2 Low Voltage Differential	39
Figure21. Hard Drive, 9Gbyte/18Gbyte Ultra2 Low Voltage Differential	39
<GRAPHIC>	39
Configuration:hard disk drive:SAM	39
Configuration:hard disk drive:SAM	39
1. Log in as	39
1. Log in as	39
2. Move the mouse pointer to the Application Manager control for tools and click the left mouse b...	39
<GRAPHIC>	40
<GRAPHIC>	40
<GRAPHIC>	40
<GRAPHIC>	40
<GRAPHIC>	40
7. Click on	40
8. Enter the mount directory name in the Mount Directory field of the Add Disk window and click o...	40
Configuration:CD Drive	42
Configuration:CD Drive	42
Configuration:CD Drive	42
CAUTION CD-ROM drives are susceptible to mechanical and electrostatic shock. When handling the dr...	42
Figure22. CD Drive Jumper Setting (Rear View)	42
Figure22. CD Drive Jumper Setting (Rear View)	42
<GRAPHIC>	42
Configuration:floppy disk drive	42
Configuration:floppy disk drive	42
CAUTION Floppy disk drives are susceptible to mechanical and electrostatic shock. When handling t...	42
Configuration:memory	43
Configuration:memory	43
Configuration:memory	43
Figure23. Memory Connectors	43
Figure23. Memory Connectors	43
<GRAPHIC>	43
NOTE Users who wish to achieve both maximum performance and maximum future capacity are advised t...	44
Configuration:I/O cards	45
Configuration:I/O cards	45
Configuration:I/O cards	45
Figure24. PCI Card Slot Numbering and Capabilities	45
Figure24. PCI Card Slot Numbering and Capabilities	45
<GRAPHIC>	45
• 19-inch, 1280¥1024 color monitor, 75 Hz (A4575A)	46
• 19-inch, 1280¥1024 color monitor, 75 Hz (A4575A)	46
• 19-inch, 1600¥1200 color monitor, 75 Hz (A4575A)	46
• 21-inch, 1280¥1024 color monitor (stereo capability), 75 Hz (A4576A)	46
• 21-inch, 1600¥1200 color monitor, 75 Hz (A4576A)	46
Monitor:unsupported	46
Monitor:unsupported	46
NOTE The HP workstation c-class supports a maximum of four Visualize-EG graphics cards with four ...	46
3 troubleshooting	47
3 troubleshooting	47
http://wojo.rose.hp.com/	48
flow diagrams for troubleshooting	49
flow diagrams for troubleshooting	49
NOTE For the system to power up, the left side panel must be properly seated in the mainframe cha...	49
Figure31. Power On LCD, Troubleshooting Flow	50
Figure31. Power On LCD, Troubleshooting Flow	50
<GRAPHIC>	51
troubleshooting:console	51
troubleshooting:console	51
<GRAPHIC>	52
troubleshooting:bootable device	52
troubleshooting:bootable device	52
<GRAPHIC>	53
troubleshooting:HP-UX Boot	53
troubleshooting:HP-UX Boot	53
<GRAPHIC>	54
troubleshooting:LCD	54
troubleshooting:LCD	54
FLT A hardware error has been detected	54
TST Hardware being tested	54
SHU System being shutdown	54
INI Hardware being initialized	54
WRN A non-optimal operating condition exists	54
RUN Computer is running operating system	54
<GRAPHIC>	54
YYYY Four digit hexadecimal code	54
FFFFFF Six character field replaceable unit description	54
WWWWWWWWWWWWWWWW Description of the chassis code	54
FLT	54
30FC	54
SYS BD	54
bad sys bd id	54
troubleshooting:fan failures and warnings	55
troubleshooting:fan failures and warnings	55
troubleshooting:fan failures and warnings	55
<TABLE>	55
Table31. Fan Numbers and Corresponding Name	55
<TABLE HEADING>	55
<TABLE ROW>	55
Fan Number	55
Name of the Fan	55
<TABLE BODY>	55
<TABLE ROW>	55
1	55
(not used)	55
<TABLE ROW>	55
2	55
Lower System Fan	55
<TABLE ROW>	55
3	55
Upper System Fan	55
<TABLE ROW>	55
4	55
PCI Card Fan	55
<TABLE ROW>	55
5	55
Turbo Cooler Fan, CPU	55
<TABLE ROW>	55
6	55
Disk/Memory Fan	55
<TABLE>	55
<TABLE BODY>	55
<TABLE ROW>	55
WRN D014 SYS BD	55
WRN D014 SYS BD	55
<TABLE ROW>	55
fan 4: failure!	55
fan 4: failure!	55
Figure35. Fan Locations	56
Figure35. Fan Locations	56
<GRAPHIC>	56
• The fan itself, if it is either a system board cooling fan, PCI (I/O) fan, or a memory fan.	56
• The entire system board tray assembly, if it is a turbo cooler fan (that is, a fan mounted on a...	56
troubleshooting:boot failure	57
troubleshooting:boot failure	57
troubleshooting:boot failure	57
troubleshooting:bootable media	58
troubleshooting:bootable media	58
troubleshooting:bootable media	58
Main Menu: Enter a command or a menu > search ipl	58
• To hold the display temporarily, press	58
• To hold the display temporarily, press	58
• To continue the display, press	58
• To halt the search, press	58
Main Menu: Enter a command > search ipl device_type	58
• fwscsi	58
• fwscsi	58
• fwscsi	58
• scsi	58
• scsi	58
• lan	58
• lan	58
• ide	58
• ide	58
• pcin	58
• pcin	58
stable storage	58
stable storage	58
boot command notations	59
boot command notations	59
boot command notations	59
• Mnemonic	59
• Mnemonic	59
• Path number	59
• boot	59
• boot	59
• boot	59
• boot	59
• boot	59
• boot p1	59
• boot p1	59
• boot p1	59
supported boot paths	59
supported boot paths	59
ISL:environment	59
ISL:environment	59
ISL:environment	59
• Execute user-entered commands to modify boot device paths and boot options in stable storage.	59
• Execute user-entered commands to modify boot device paths and boot options in stable storage.	59
• Run off-line diagnostic programs and utilities.	59
• Provide automatic booting of the HP-UX operating system after power-on or reset.	59
troubleshooting:selftest failures	60
troubleshooting:selftest failures	60
troubleshooting:selftest failures	60
1. Using	60
1. Using	60
2. To get additional information about failures from the Boot Console Handler, use the Service Me...	60
troubleshooting:chassis codes	61
troubleshooting:chassis codes	61
troubleshooting:chassis codes	61
Table 32.	61
<TABLE>	61
Table32. Chassis Codes for th HP Workstation C-Class	61
<TABLE HEADING>	61

Match case Limit results 1 per page

Chapter 4

103

field replaceable units

FRU removal and replacement

the power supply is propped in the upright position as shown in Figure 4-8. Note that

the bail automatically springs into the bail lock to secure the power supply.

Figure 4-8. Propping Up the Power Supply

closing the system

Once you have completed the task you set out to perform, you are ready to close the

system. To close the system follow these steps:

1. Push slightly back on the power supply until you are able to remove the bail from the

bail lock. Using the power supply handle lower it downward into its original operating

position. See Figure Figure 4-7.

Tighten both captive screws in place as seen in Figure 4-7.

3. Replace the left side panel of the system unit as shown in the section “closing the left

side panel of the system unit” in this chapter.

removing the power supply

To remove the power supply follow these steps:

Follow the steps covered in the section “propping up the power supply.”

2. Disconnect both power cables from the system board, the control cable, and the power

cable for the SCA disk drives. See Figure 4-9. Note that these cables are keyed to

prevent you from incorrectly plugging them in when you replace the power supply.

Bail

Bail Lock

Bail

Power Supply