HP 743 Series Technical Reference Manual For Oems page 140

Table 6-7 summarizes the current requirements for internal devices.
Table 6-7 Internal Device Current Requirements
Internal mass storage devices:
CD-ROM drive
DDS tape drive
Flexible disk drive
1 GB SE hard drive
2 GB FWD hard drive
2 GB SE hard drive
4 GB FWD hard drive
4 GB SE hard drive
9 GB FWD hard drive
Hewlett-Packard EISA Cards:
HP 25525A SCSI DIFF
HP 25525B EISA SCSI
HP 25560A HPIB
HP 25567A LAN
HP J2156A FDDI
HP J2159A X.25 PSI
HP J2165A LAN
HP J2645AA VG Any LAN
HP J2802B ATM
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+5.1V dc
Device
Amps
1.6 A
1.0 A
0.8 A
1.2 A
1.1A
1.0 A
1.1 A
1.0 A
1.2 A
3.1 A
3.06 A
3.1 A
3.4 A
2.0 A
3.4 A
2.1 A
0.3 A
+12V dc -12V dc
Amps Amps
1.8 A
0.8 A
1.8 A
0.9 A
0.9 A
1.0 A
1.0 A
0.9 A
0.05 A
5 mA 5 mA
0.04 A
0.09 A 0.05 A
0.04 A
Power Requirements
Power Distribution
6-11