PCI Cards

The PCI card power budget supports a total of 60 watts, which is distributed among

four PCI cards in an arbitrary way as long as the total PCI power does not exceed 60

watts.

The following table lists 5 VDC PCI card power estimates

VoltageRail
(VDC) PCI Cards
(Maximum
Number)
Current Each
(Amps)
Current Total
(Amps) TotalPower
(Watts)
5 4 3.0 12.0
3.3 0 0 0
+12 4 0.4 1.6
-12 4 0.1 0.4
<= 60 for all
voltage rails
combined

.

The following table lists 3.3VDC PCI card power estimates.

VoltageRail
(VDC) PCI Cards
(Maximum
Number)
Current Each
(Amps)
Current Total
(Amps) TotalPower
(Watts)
5000
3.3 4 4.5 18.0
+12 4 0.4 1.6
-12 4 0.1 0.4
<= 60 for all
voltage rails
combined
Memory System

The following table lists the memory system power budget.

Number of DIMMs WC Current Total(Amps) TotalPower @5 VDC (Watts)
16 9.33 46.66
276 Sun Enterprise 220R Server Service Manual ♦January 2000, Revision A