User guide

Table 1–3 Typical Peak Power Supply Current and Module Power Dissipation
CPU Modules
w/128 MB Memory
Amps
@5V
Amps @ 12 V
(note 1)
Amps
@
12 V
Module Heat
Dissipation
Alpha VME 4/224 12.0 A 0.2 A 0.01 A 62 W
Alpha VME 4/288 13.5 A 0.2 A 0.01 A 70 W
Options Amps
@5V
Amps
@12V
Amps
@
12 V
Power
Dissipation
SCSI Termination 0.8 A max. 0.0 A N/A 4 W max.
PMC Option Slot
Budget
3.0 A max. N/A N/A 15 W max.
Notes
Power and heat dissipation assumes nominal voltages (5.0 V, 12.0 V, and
V). Power numbers are based on actual measured data. Add 10% to
the current and power values for a worst-case power and heat scenario.
SCSI Termination is enabled by default. You can disable this option by
resetting the jumper on the primary breakout module as explained in
Section 8.2.1.
For more information about the PMC option slot budget, see the
documentation supplied with your PMC option.
Product Overview 1–5