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Internal Components

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Product Information Internal Components Internal Components This section describes the internal components of the J5xxx and J7xxx workstations. The first subsection describes the internal components that are located on the left side as you are facing the front of the workstation. The second subsection then describes the internal components on the right side of the workstation. For instructions on how to remove the workstation's top and side panels in order to access these internal components, as well as instructions on how to remove and replace these internal components to service them, see Chapter 4. Internal Components on the Left Side As you face the J5xxx and J7xxx workstation, the internal components on the left side of the workstations include the system board and three system board fans. The J7xxx also has two DC/DC converter units mounted on its system board, as well as two air dividers. Figures 1-12 and 1-13 show the internal components located on the left side of the J5xxx and the J7xxx workstation, respectively. (In both figures, the left side panels have been removed from the workstations so that the internal components can be viewed.) As you can see by comparing these two figures, the system boards in the J5xxx and J7xxx are different in the number and placement of their PA-RISC microprocessors, the number of their memory slots, and the fact that the J7xxx has two DC/DC converter units, where the J5xxx has none. Figure 1-12. Internal Components on the Left Side of the J5xxx J5xxx system board Two PA-RISC microprocessors with turbocoolers Eight memory slots Three system board fans 30 Chapter 1

Section	Page
Service Handbook	1
Service Handbook	1
Service Handbook	1
HP Visualize J Class Workstations	1
Edition 3	1
HP Part No. A4978-90049	1
Printed in USA January 2000	1
Edition E0100	1
Notice	2
Notice	2
The information contained in this document is subject to change without notice.	2
Hewlett-Packard Warranty Statement	2
Hewlett-Packard Warranty Statement	2
HP PRODUCTDURATION OF WARRANTY ...	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
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
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
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
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
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
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...	2
7. TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY O...	2
8. HP will be liable for damage to tangible property per incident up to the greater of $300,000 o...	2
8. HP will be liable for damage to tangible property per incident up to the greater of $300,000 o...	2
9. TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS WARRANTY STATEMENT ARE CUSTOMER’S SOL...	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
Use, duplication, or disclosure by government is subject to restrictions as set forth in subdivis...	3
© Copyright 1999	3
© Copyright 1999	3
Hewlett-Packard Company. All Rights Reserved. This document contains proprietary information that...	3
© Copyright 1980, 1984	3
© Copyright 1980, 1984	3
AT&T, Inc.	3
© Copyright 1979, 1980, 1983	3
© Copyright 1979, 1980, 1983	3
The Regents of the University of California. This software and documentation is based in part on ...	3
Printing History	4
Printing History	4
New editions of this manual incorporate all material updated since the previous edition. Update p...	4
The manual part number and printing date indicate its current edition. The manual part number cha...	4
1 Product Information	19
1 Product Information	19
This chapter provides general product information about the HP Visualize J5xxx and J7xxx workstat...	19
This chapter provides general product information about the HP Visualize J5xxx and J7xxx workstat...	19
Chapter Overview	20
Chapter Overview	20
This chapter contains the following main sections:	20
J5000/J7000 workstation:product description	20
J5000/J7000 workstation:product description	20
J5000/J7000 workstation:product description	20
The HP Visualize J5xxx and J7xxx workstations are high-performance systems capable of handling th...	20
J5000/J7000 workstation:differences between J5000 and J7000	20
J5000/J7000 workstation:differences between J5000 and J7000	20
J5000/J7000 workstation:physical dimensions	20
J5000/J7000 workstation:physical dimensions	20
J5000/J7000 workstation:physical dimensions	20
Physical dimensions of workstation	20
Dimensions of workstation	20
Size of workstation, physical	20
Both workstations use a common chassis, which is 17.5 inches (44.5 cm) high ¥ 13.6 inches (34.5 c...	20
NOTE For environmental and electrical requirements, see Appendix A.	20
NOTE For environmental and electrical requirements, see Appendix A.	20
Features of J5000/J7000 workstation	21
Features of J5000/J7000 workstation	21
Features of J5000/J7000 workstation	21
J5000/J7000 workstation:features	21
The J5xxx and J7xxx workstations have the following key features.	21
Microprocessors	21
Microprocessors	21
Microprocessors	21
CPUs	21
HP-UX: versions supported	21
HP-UX: versions supported	21
J5000/J7000 workstation:operating system versions	21
Operating system, HP-UX:versions supported	21
J5000/J7000 workstation:user interface	21
J5000/J7000 workstation:user interface	21
User interface	21
HP CDE graphical user interface	21
Graphical user interface	21
J5000/J7000 workstation:compatibility with other workstations	21
J5000/J7000 workstation:compatibility with other workstations	21
Compatibility with other workstations	21
J5000/J7000 workstation:memory slots	21
J5000/J7000 workstation:memory slots	21
Memory:description of	21
J5000/J7000 workstation:power supply	21
J5000/J7000 workstation:power supply	21
Power supply:description of	21
J5000/J7000 workstation:internal storage devices	21
J5000/J7000 workstation:internal storage devices	21
Internal storage devices:description of	21
Networking:description of	21
Networking:description of	21
J5000/J7000 workstation:networking	21
Connectors on rear panel:list of	21
Connectors on rear panel:list of	21
I/O ports on rear panel:list of	21
Ports on rear panel:list of	21
J5000/J7000 workstation:ports	21
J5000/J7000 workstation:I/O slots	22
J5000/J7000 workstation:I/O slots	22
I/O slots:description of	22
J5000/J7000 workstation:graphics cards supported	22
J5000/J7000 workstation:graphics cards supported	22
Graphics cards:list of supported	22
Cards, I/O: graphics cards supported	22
• Monitors Currently Supported:	22
• Standard Keyboard: USB (Universal Serial Bus) Series A	22
• Mouse: USB (Universal Serial Bus) Series A, either scroll wheel or three-button type	22
J5000/J7000 workstation:front panel components	23
J5000/J7000 workstation:front panel components	23
J5000/J7000 workstation:front panel components	23
Components:front panel	23
Front panel:components	23
This section describes the components that are located on the front panel of the J5xxx and J7xxx ...	23
Figure 1-1 shows the front panel components with the bezel attached.	23
Figure11. Components on the Front Panel with the Bezel Attached	23
Figure11. Components on the Front Panel with the Bezel Attached	23
<GRAPHIC>	23
Lifting ledge	23
Lifting ledge	23
J5000/J7000 workstation:lifting ledge	23
As noted in Figure 1-1, the hard disk drives are located behind the right-hand door of the front ...	23
Figure12. Front Panel with the Bezel Door Open	24
Figure12. Front Panel with the Bezel Door Open	24
<GRAPHIC>	24
J5000/J7000 workstation:bezel on front panel	24
Bezel lock, front panel	24
Bezel, front panel	24
Front panel:bezel	24
J5000/J7000 workstation:front panel bezel	24
Figure 1-3 on the next page shows the front panel of the workstation with the bezel removed. This...	24
In addition, Figure 1-3 shows the location of the two bezel-detach screw holes on the right-hand ...	24
Figure13. Components on the Front Panel with the Bezel Removed	25
Figure13. Components on the Front Panel with the Bezel Removed	25
<GRAPHIC>	25
• Power switch	25
• Power switch	25
• System LCD	25
• Internal storage devices:	25
J5000/J7000 workstation:power switch	25
J5000/J7000 workstation:power switch	25
J5000/J7000 workstation:power switch	25
Power switch:description of	25
Buttons:power	25
J5000/J7000 workstation:powering off	25
Powering off the J5000/J7000	25
The power switch is located on the left side of the front panel as part of the power switch/LCD a...	25
NOTE The J5xxx and J7xxx workstations have a “soft power down” feature that shuts the operating s...	25
NOTE The J5xxx and J7xxx workstations have a “soft power down” feature that shuts the operating s...	25
J5000/J7000 workstation:LCD	26
J5000/J7000 workstation:LCD	26
J5000/J7000 workstation:LCD	26
LCD:description of	26
The Liquid Crystal Display (LCD) indicator is located on the left side of the front panel as part...	26
The following symbols appear in the LCD, representing different system activities.	26
LCD:symbols	26
LCD:symbols	26
LCD:symbols	26
<GRAPHIC>	26
J5000/J7000 workstation:internal storage devices	26
J5000/J7000 workstation:internal storage devices	26
Internal storage devices:description of	26
The J5xxx and J7xxx workstations support the following internal storage devices, which are also l...	26
• Up to four hot-pluggable, SCA (Single Connector Attach) hard disk drives	26
• Up to four hot-pluggable, SCA (Single Connector Attach) hard disk drives	26
• Optionally, one CD ROM drive	26
• Optionally, either one DDS-3 tape drive, or one 3.5-inch floppy disk drive	26
The following subsections describe these internal storage devices.	26
J5000/J7000 workstation:hard disk drives	26
J5000/J7000 workstation:hard disk drives	26
J5000/J7000 workstation:hard disk drives	26
Internal storage devices:hard disk drives	26
Storage devices:hard disk drives	26
Drives:hard disk	26
Hard disk drives:description of	26
The J5xxx and J7xxx workstations can support up to four hot-pluggable, SCA (Single Connector Atta...	26
Hard disk drives:models supported	26
Hard disk drives:models supported	26
• 9 GB LVD 10K RPM disk drive (Product Number A4997A)	26
• 9 GB LVD 10K RPM disk drive (Product Number A4997A)	26
• 9 GB LVD 10K RPM disk drive (Product Number A4997A)	26
• 18 GB LVD 10K RPM disk drive (Product Number A4998A)	26
Hot-plugging hard disk drives	26
Hot-plugging hard disk drives	26
Hot-plugging hard disk drives	26
Hard disk drives:hot-plugging	26
Internal storage devices:CD drive	27
Internal storage devices:CD drive	27
Internal storage devices:CD drive	27
J5000/J7000 workstation:CD drive	27
Storage devices:CD drive	27
Drives:CD	27
CD drive:description of	27
As an optional component, the J5xxx and J7xxx workstations support one CD ROM drive with an ATAPI...	27
Figure 1-5 shows the operating features of the CD ROM drive, and Table 1-2 describes these features.	27
Figure15. CD ROM Drive Features	27
Figure15. CD ROM Drive Features	27
<GRAPHIC>	27
Table12. CD ROM Drive Features	27
<TABLE HEADING>	27
<TABLE ROW>	27
Feature	27
Purpose	27
Purpose	27
<TABLE BODY>	27
<TABLE ROW>	27
Busy Indicator	27
Busy Indicator	27
Lights during a data access operation and blinks during a data transfer. The indicator blinks ini...	27
Lights during a data access operation and blinks during a data transfer. The indicator blinks ini...	27
<TABLE ROW>	27
Emergency Eject Hole	27
Emergency Eject Hole	27
Opens the Disk Tray when the end of a paper clip is inserted into it. Used when the workstation d...	27
<TABLE ROW>	27
Eject Button	27
Opens the Disk Tray so that a CD ROM disk may be inserted in it or removed from it. When the driv...	27
Opens the Disk Tray so that a CD ROM disk may be inserted in it or removed from it. When the driv...	27
<TABLE ROW>	27
Disk Tray	27
Holds the CD ROM disk. (Note that this style of CD ROM drive does not use a disk caddy.)	27
Holds the CD ROM disk. (Note that this style of CD ROM drive does not use a disk caddy.)	27
J5000/J7000 workstation:DDS-3 tape drive	28
J5000/J7000 workstation:DDS-3 tape drive	28
J5000/J7000 workstation:DDS-3 tape drive	28
Internal storage devices:DDS-3 tape drive	28
Storage devices:DDS-3 tape drive	28
Drives:DDS-3 tape	28
DDS-3 tape drive:description of	28
The J5xxx and J7xxx workstations support either one DDS-3 tape drive or one 3.5-inch floppy disk ...	28
The optional DDS-3 tape drive (Product Number A5011A) is a 3.5-inch, half-height form factor devi...	28
Figure 1-6 shows the operating features of the DDS-3 tape drive.	28
Figure16. DDS-3 Tape Drive Features	28
Figure16. DDS-3 Tape Drive Features	28
<GRAPHIC>	28
DDS-3 tape drive:LED codes	28
DDS-3 tape drive:LED codes	28
DDS-3 tape drive:LED codes	28
LED codes for DDS-3 tape drive	28
<GRAPHIC>	29
J5000/J7000 workstation:floppy disk drive	29
J5000/J7000 workstation:floppy disk drive	29
Internal storage devices:floppy disk drive	29
Storage devices:floppy disk drive	29
Drives:floppy disk	29
Floppy disk drive:description of	29
The J5xxx and J7xxx workstations support either one DDS-3 tape drive or one 3.5-inch floppy disk ...	29
The optional floppy disk drive (Product Number A5009A) is a 3.5-inch form factor device with a PC...	29
Figure 1-8 shows the operating features of the floppy disk drive, and Table 1-3 describes these f...	29
Figure18. Floppy Disk Drive Features	29
Figure18. Floppy Disk Drive Features	29
<GRAPHIC>	29
Table13. Floppy Disk Drive Features	29
<TABLE HEADING>	29
<TABLE ROW>	29
Feature	29
Purpose	29
Purpose	29
<TABLE BODY>	29
<TABLE ROW>	29
Activity LED	29
Activity LED	29
Flashes to indicate the floppy disk drive is in use.	29
Flashes to indicate the floppy disk drive is in use.	29
<TABLE ROW>	29
Eject Button	29
Push to eject a floppy disk from the drive.	29
Push to eject a floppy disk from the drive.	29
J5000/J7000 workstation:rear panel components	30
J5000/J7000 workstation:rear panel components	30
J5000/J7000 workstation:rear panel components	30
Components:rear panel	30
Rear panel components	30
This section describes the various components located on the rear panel of the J5xxx and J7xxx wo...	30
NOTE To maintain FCC/EMI compliance, verify that all cables are fully seated and properly fastened.	30
NOTE To maintain FCC/EMI compliance, verify that all cables are fully seated and properly fastened.	30
Figure19. Components on the Rear Panel	30
Figure19. Components on the Rear Panel	30
<GRAPHIC>	30
J5000/J7000 workstation:thumbscrews on rear panel	31
J5000/J7000 workstation:thumbscrews on rear panel	31
J5000/J7000 workstation:thumbscrews on rear panel	31
Rear panel components:thumbscrews	31
Thumbscrews on rear panel	31
There are two T-15 thumbscrews in the upper corners of the rear panel. Loosening these two screws...	31
Safety interlock thumbscrew	31
Safety interlock thumbscrew	31
Power supply:interlock thumbscrew	31
Interlock thumbscrew	31
CAUTION Do	31
CAUTION Do	31
J5000/J7000 workstation:connectors on rear panel	31
J5000/J7000 workstation:connectors on rear panel	31
J5000/J7000 workstation:connectors on rear panel	31
This subsection describes the following connectors that are located on the rear panel. Note that ...	31
• RS-232C Serial connectors	31
• RS-232C Serial connectors	31
• LAN 10/100 BaseT RJ45 connector	31
• USB connectors (for keyboard and mouse only)	31
• Parallel connector	31
• SCSI connectors	31
• Audio connectors	31
• Power cord connector	31
Rear panel components:RS-232C serial connectors	31
Rear panel components:RS-232C serial connectors	31
Rear panel components:RS-232C serial connectors	31
RS-232C serial:connectors	31
Serial:connectors	31
Connectors on rear panel:RS-232C serial	31
Ports on rear panel:RS-232C serial	31
I/O ports on rear panel:RS-232C serial	31
There are a variety of pointing devices (such as a mouse or trackball) or peripheral devices (inc...	31
The SIO ports are programmable, allowing functions such as bit rate, character length, parity, an...	31
Table 1-4 on the next page shows the SIO connector pin listings. The serial connectors are 9-pin ...	31
<TABLE>	32
Table14. Serial I/O Pins	32
Serial:I/O pins	32
RS-232C serial:I/O pins	32
<TABLE HEADING>	32
<TABLE ROW>	32
Pin No.	32
Pin No.	32
Signal	32
Description	32
<TABLE BODY>	32
<TABLE ROW>	32
1	32
DCD	32
Data Carrier Detect	32
<TABLE ROW>	32
2	32
RXD	32
Receive Data	32
<TABLE ROW>	32
3	32
TXD	32
Transmit Data	32
<TABLE ROW>	32
4	32
DTR	32
Data Terminal Ready	32
<TABLE ROW>	32
5	32
GND	32
Ground	32
<TABLE ROW>	32
6	32
DSR	32
Data Set Ready	32
<TABLE ROW>	32
7	32
RTS	32
Request To Send	32
<TABLE ROW>	32
8	32
CTS	32
Clear To Send	32
<TABLE ROW>	32
9	32
RI	32
Ring Indicator	32
Connectors on rear panel:LAN	32
Connectors on rear panel:LAN	32
Connectors on rear panel:LAN	32
Rear panel components:LAN connector	32
LAN connector	32
Networking:connector	32
RJ45 LAN connector	32
Ports on rear panel:LAN	32
I/O ports on rear panel:LAN	32
Networking:description of	32
The J5xxx and J7xxx workstations have one built-in, Ethernet IEEE 802.3, RJ45 Twisted Pair connec...	32
Rear panel components:USB connectors	32
Rear panel components:USB connectors	32
Rear panel components:USB connectors	32
USB:connectors	32
Connectors on rear panel:USB	32
Ports on rear panel:USB	32
I/O ports on rear panel:USB	32
The two USB (Universal Serial Bus) Series A connectors on the rear panel of the J5xxx and J7xxx w...	32
See the “Keyboard and Mouse” section for a description of these input devices. Also consult the d...	32
Connectors on rear panel:parallel	32
Connectors on rear panel:parallel	32
Connectors on rear panel:parallel	32
Rear panel components:parallel connector	32
Parallel connector	32
Ports on rear panel:parallel	32
I/O ports on rear panel:parallel	32
The 25-pin HP Parallel I/O interface uses Centronics interface protocols to support peripheral de...	32
Rear panel components:SCSI connectors	33
Rear panel components:SCSI connectors	33
Rear panel components:SCSI connectors	33
SCSI:connectors	33
Connectors on rear panel:SCSI	33
Ports on rear panel:SCSI	33
I/O ports on rear panel:SCSI	33
There are two SCSI connectors on the rear panel: one	33
Consult the documentation that accompanies each SCSI device for specific information concerning i...	33
SCSI:mixing NSE and LVD devices on same bus	33
SCSI:mixing NSE and LVD devices on same bus	33
SCSI:mixing NSE and LVD devices on same bus	33
SCSI:terminators	33
SCSI:terminators	33
SCSI:terminators	33
Terminators, SCSI	33
Connectors on rear panel:audio	33
Connectors on rear panel:audio	33
Connectors on rear panel:audio	33
Rear panel components:audio connectors	33
Audio:connectors	33
Ports on rear panel:audio	33
I/O ports on rear panel:audio	33
The J5xxx and J7xxx workstations have audio-input and -output capabilities through external input...	33
Figure110. Audio Connectors	33
Figure110. Audio Connectors	33
<GRAPHIC>	33
<TABLE>	34
<TABLE>	34
Table15. Audio Electrical Specifications	34
Audio:electrical specifications	34
Specifications:audio electrical	34
<TABLE BODY>	34
<TABLE ROW>	34
Frequency Response	34
Frequency Response	34
25 Hz to 20 kHz	34
<TABLE ROW>	34
Input Sensitivity/Impedance: – Line in – Microphone	34
2.0 Vpk/47 Kohm 22 mVpk/1 Kohm	34
2.0 Vpk/47 Kohm 22 mVpk/1 Kohm	34
<TABLE ROW>	34
Maximum Output Level/Impedance: – Line out – Headphones – Speaker (internal)	34
2.8 Vpp/47 Kohm 2.75 Vpp/50 ohm 5.88 Vpp/48 ohm	34
<TABLE ROW>	34
Output Impedance: – Line out – Headphones	34
619 ohm 118 ohm	34
Rear panel components:power cord connector	34
Rear panel components:power cord connector	34
Rear panel components:power cord connector	34
Power cord connector	34
Connectors on rear panel:power cord	34
Plug the power cord into the power cord connector to provide AC power to the workstation. The pow...	34
J5000 workstation:power cord connector	34
J5000 workstation:power cord connector	34
J7000 workstation:power cord connector	34
Figure111. Power Cord Connectors	34
Figure111. Power Cord Connectors	34
<GRAPHIC>	35
Miscellaneous Components on the Rear Panel	35
This subsection describes the following, miscellaneous components that are also located on the re...	35
• Security tab	35
• Security tab	35
• TOC button	35
• I/O slots	35
J5000/J7000 workstation:security tab	35
J5000/J7000 workstation:security tab	35
J5000/J7000 workstation:security tab	35
Rear panel components:security tab	35
Security tab	35
The security tab, which is located at the top of the rear panel, can be used to lock the workstat...	35
TOC button	35
TOC button	35
TOC button	35
J5000/J7000 workstation:TOC button	35
Rear panel components:TOC button	35
Buttons:TOC	35
The TOC (Transfer Of Control) button interrupts the system.	35
I/O slots:description of	35
I/O slots:description of	35
I/O slots:description of	35
PCI I/O slots	35
J5000/J7000 workstation:I/O slots	35
Rear panel components:I/O slots	35
The I/O slots located on the rear panel are 64-bit PCI (Peripheral Connect Interface) slots, prov...	35
1. Power only – Top slot	35
1. Power only – Top slot	35
1. Power only – Top slot	35
2. PCI-2X (5V, 33 MHz)	35
3. PCI-2X (5V, 33 MHz)	35
4. PCI-4X (3.3V, 66 MHz)	35
5. PCI-2X (5V, 33 MHz)	35
6. PCI-2X (5V, 33 MHz)	35
7. PCI-4X (3.3V, 66 MHz)	35
8. PCI-2X (5V, 33 MHz) – Bottom slot	35
NOTE Slot 1 is reserved for power only and should	35
NOTE Slot 1 is reserved for power only and should	35
For more information about the I/O slots, see the configuration section in Chapter 2, as well as ...	35
Internal Components	36
Internal Components	36

Match case Limit results 1 per page

Chapter 1

Product Information

Internal Components

This section describes the internal components of the J5xxx and J7xxx workstations. The

ﬁrst subsection describes the internal components that are located on the left side as you

are facing the front of the workstation. The second subsection then describes the internal

components on the right side of the workstation.

For instructions on how to remove the workstation’s top and side panels in order to access

these internal components, as well as instructions on how to remove and replace these

internal components to service them, see Chapter 4.

Internal Components on the Left Side

As you face the J5xxx and J7xxx workstation, the internal components on the left side of

the workstations include the system board and three system board fans. The J7xxx also

has two DC/DC converter units mounted on its system board, as well as two air dividers.

Figures 1-12 and 1-13 show the internal components located on the left side of the J5xxx

and the J7xxx workstation, respectively. (In both ﬁgures, the left side panels have been

removed from the workstations so that the internal components can be viewed.) As you can

see by comparing these two ﬁgures, the system boards in the J5xxx and J7xxx are different

in the number and placement of their PA-RISC microprocessors, the number of their

memory slots, and the fact that the J7xxx has two DC/DC converter units, where the J5xxx

has none.

Figure 1-12. Internal Components on the Left Side of the J5xxx

Eight

memory

slots

Two PA-RISC

microprocessors

with turbocoolers

system board

J5xxx

Three system

board fans