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12

Physical Characteristics 

Table 2 details basic physical characteristics of the system. 
 

Table 2  AlphaServer DS20E Physical Characteristics 

 

Dimensions Pedestal 

Rackmount 

Height 
Width 
Depth 
Weight 

47.0 cm (18.5 in.) 
22.5 cm (8.85 in.) 
69.9  cm (27.5 in.) 
36 kg (80 lbs) typical;  
40 kg (88 lbs) maximum 

22.2 cm (8.75 in.) 
44.5 cm (17.5 in.) 
66.0 cm (26 in.) 
36 kg (80 lbs) nominal; 39 kg (86 lbs) maximum 
With brackets, slides, & cables 
    38 kg (84 lbs) nominal; 40 kg (88 lbs) maximum 

Environmental 

Temperature Operating 

Storage (60 days) 
Rate of change 

10

35° C (50

95° F) 

-40

66° C (-40

151° F) 

11° C/hr (20° F/hr) 

Relative humidity 

Operating 
Nonoperating 
Storage (60 days) 
Rate of change 

20–80% 
20–80% 
10–95% 
20%/hr 

Maximum wet bulb temperature 

Operating  
Storage (60 days) 

28° C (82° F)  
46° C (115° F) 

Minimum dew point temperature 

Operating 

2° C (36° F) 

Maximum heat dissipation 

Nominal 
Maximum 

550 watts, 1,878 Btu/hr 
780 watts, 2,664 Btu/hr 

Airflow  

Intake location 
Exhaust location 

Front 
Rear 

Altitude Operating 

Nonoperating 

3,037 m (10,000 ft) 
12,192 m (40,000 ft) 

Vibration Operating 

10–500 Hz .1 G peak 

Mechanical shock 

Operating 
  Pedestal 
  M-series cabinet 

 
7.5 G, 10+/–3ms 
5.0 G, 10+/–3ms 

Acoustics  

Idle 
Operating 

Average                 Declared 
5.8 L

wA

, B 

44 L

p

A

m

, dba 

6.3 L

wA

, B 

49 L

p

A

m

, dba 

Electrical  (Power supplies are universal, PFC, auto ranging, 100/240 Vac) 

Nominal voltage (Vac) 

100 

120 

200–240 

Voltage range (Vac) 
    temporary condition 

90–100 110–128 180–250 

Power source phase 

Single 

Single 

Single 

Nominal frequency (Hz) 

50/60 

50/60 

50/60 

Frequency range (Hz) 

49–51 / 59–61 49–51 / 59–61 49–51 / 59–61 

RMS current (maximum steady state) 

 

 

 

    Pedestal and rackmount 

 

 

 

      Single power cord 

6.6 A 

5.5 A 

3.0 A 

      Maximum VA 

780 

765 

730 

    M-series cabinet (configuration dependent) 

 

 

 

       Nominal voltage (Vac) 

100 

120 

220–240 

       Each power cord 

24 A 

24 A 

16 A 

 

 
 

Summary of Contents for AlphaServer DS20E

Page 1: ...Compaq AlphaServer DS20E Systems Technical Summary ...

Page 2: ...ol 6 Storage 6 Fibre Channel RAID Redundant Array of Independent Disks Server Management 7 Operational Management Platform Management Error Reporting Reliability Availability and Maintainability 7 Processor Features Memory Features I O Features System Features Installation and Maintenance 8 Clustering 8 PCI to Memory Channel Interconnect Operating System Support Performance 9 Sources of Performanc...

Page 3: ...floppy diskette drive a CD ROM and space for one additional 5 25 inch removable media device The system supports up to 218 4 GB of internal storage using 36 4 GB disks There are 6 PCI slots one of which could be used for an ISA device Integrated on the system board are controllers for a SCSI tape device a diskette two serial ports one parallel port and the keyboard and mouse Three operating system...

Page 4: ...ht D chips and two P chips C chip Provides the interface from the CPUs and main memory Although there is only one in the system it allows each CPU to do transactions simultaneously D chips Provide the data path for the CPUs main memory and I O P chips Provide the interface to two independent 64 bit PCI buses The DS20E system supports up to two CPUs and up to 4 Gbytes memory in 16 DIMM slots Each m...

Page 5: ...e floppy diskette the CD ROM a SCSI tape drive two serial ports one parallel port and keyboard and mouse Connectors are provided for the following 2 CPU modules 16 DIMM memory modules 6 PCI devices 1 ISA device 1 floppy diskette drive 1 IDE CD ROM I O panel for parallel port COM1 and COM2 ports keyboard and mouse CPU 0 CPU 1 C Chip D Chip D Chip D Chip D Chip D Chip D Chip D Chip D Chip P Chip P C...

Page 6: ...ffect instructions execute as soon as possible This allows for faster execution since critical path computations are started and completed as soon as possible In addition the Alpha 21264 employs speculative execution to maximize performance It speculatively fetches and executes instructions even though it may not know immediately whether the instruction will be on the final execution path This is ...

Page 7: ...o 64 bit PCI buses Industry standard PCI I O buses allow you to use inexpensive widely available I O options Both 32 bit and 64 bit PCI options can be used Six slots can be used for PCI controllers or five slots for PCI and one slot for an ISA option PCI Bus The industry standard PCI bus is the number one choice for high performance I O options such as disk storage and high performance video appli...

Page 8: ...he system supports up to 218 4 Gbytes of internal storage using 36 4 GB disks The disk cage supports up to six Ultra3 SCSI Universal 1 inch disk drives 9 1 18 2 or 36 4 GB The drives are available at 10 000 or 15 000 RPM Fibre Channel Available on these AlphaServer systems is the next storage interface Fibre Channel which eliminates issues with today s SCSI interfaces such as distance bandwidth sc...

Page 9: ...Analyze a diagnostic tool used to determine the cause of hardware failures is installed with the operating systems It provides automatic background analysis as it constantly views and reads the error log file It analyzes both single error fault events and multiple events When an error condition is detected it collects the error information and sends it and an analysis to the user The tool requires...

Page 10: ...rt critical customer con figurations Because power is maintained for the entire system CPU memory and I O power interruptions are completely transparent to users Installation and Maintenance The systems are designed for easy hardware software and option installation Options ordered with a system are preinstalled and tested at the factory The operating systems are also installed at the factory Inst...

Page 11: ...ools resources and information you need to conduct Compaq business online on the secure Compaq Partner Network extranet site http CPN compaq com Also see the Compaq Solutions Alliance site at http csa compaq com Service and Support Compaq provides a comprehensive set of services that range from migration consulting and training to direct support of Alpha systems software and applications For infor...

Page 12: ...board 3 PCI slots 4 System features module 5 Control panel 6 Removable media bay 7 CD ROM floppy diskette drive 8 Storage drive bays 9 Power supplies 2 minimum 1 Parallel port 2 Serial port COM2 3 Serial port COM1 4 Keyboard port 5 Mouse port 6 AC power inlet 7 System fans 8 SCSI breakouts 9 PCI ISA bulkhead ports ...

Page 13: ...license and customer documentation Internet software Internal Storage Removable media CD ROM floppy diskette one additional 5 25 inch removable media bay Hard disks 218 4 GB 6 hot swap disks 36 4 GB each I O slots 6 PCI slots 5 PCI and 1 PCI ISA Maximum PCI throughput Over 500 MB sec with two 256 MB sec buses Availability Features System System auto reboot thermal management remote system manageme...

Page 14: ...ure Operating 2 C 36 F Maximum heat dissipation Nominal Maximum 550 watts 1 878 Btu hr 780 watts 2 664 Btu hr Airflow Intake location Exhaust location Front Rear Altitude Operating Nonoperating 3 037 m 10 000 ft 12 192 m 40 000 ft Vibration Operating 10 500 Hz 1 G peak Mechanical shock Operating Pedestal M series cabinet 7 5 G 10 3ms 5 0 G 10 3ms Acoustics Idle Operating Average Declared 5 8 LwA B...

Page 15: ......

Page 16: ... a trademark of The Open Group in the United States and other countries All other product names mentioned herein may be trademarks of their respective companies Compaq shall not be liable for technical or editorial errors or omissions contained herein The information in this document is provided as is without warranty of any kind and is subject to change without notice The warranties for Compaq pr...

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