HP Model 748 HP Model 748 Service Handbook - Page 23

Technical Information, Table 1-7, Power consumption, Line voltage, Line frequency

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Product Information Technical Information Technical Information NOTE: Technical information listed herein should not be interpreted as specifications. Official specifications are listed in the system's Technical Data Sheet. Table 1-7 shows electrical information. Table 1-7 Electrical Information Power consumption Model 748; 1080 watt Line voltage Line frequency 90 - 132 Volts 180 - 264 Volts 50 - 60 Hz Table 1-8 lists the EISA, PCI, and VME slots available current in amps for each voltage supplied to their respective backplanes. NOTE: The PCI tray provides power for option cards from both a +3.3 Vdc source and a +5 Vdc source. Cards may use either or both power sources, up to 25W per slot. However, the +3.3 V dc source is limited to 39.8 W combined for slots 1 and 2, and 39.8 W combined for slots 3 and 4. For example, if the card in slot 1 draws 25 W at +3.3 V dc, only 14.8 W at +3.3 V dc is available to a card in slot 2. The limits of + 5 Vdc is 25 W per slot. 1-13

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Product Information
Technical Information
1-13
Technical Information
NOTE:
Technical information listed herein should not be interpreted as
specifications. Official specifications are listed in the system’s
Technical Data Sheet. Table 1-7 shows electrical information.
Table 1-8 lists the EISA, PCI, and VME slots available current in amps for each voltage
supplied to their respective backplanes.
NOTE:
The PCI tray provides power for option cards from both a +3.3 Vdc
source and a +5 Vdc source. Cards may use either or both power
sources, up to 25W per slot. However, the +3.3 V dc source is
limited to 39.8 W combined for slots 1 and 2, and 39.8 W combined
for slots 3 and 4. For example, if the card in slot 1 draws 25 W at
+3.3 V dc, only 14.8 W at +3.3 V dc is available to a card in slot 2.
The limits of + 5 Vdc is 25 W per slot.
Table 1-7
Electrical Information
Power consumption
Model 748; 1080 watt
Line voltage
90 - 132 Volts
180 - 264 Volts
Line frequency
50 - 60 Hz