Intel STL2 manual 6.1Calculated Power Consumption

STL2 Server Board TPS Power Consumption

6.Power Consumption

6.1Calculated Power Consumption

The following table shows the calculated power consumption for each of the power supply voltage rails for the STL2 server board. These values were calculated using the specifications for the on-board components and processors. Assumptions for add-in card power and other peripherals powered from the server board are included in the table. Customers will need to modify the calculated power consumption numbers based on their anticipated usage – watts per PCI slot, etc.

Note: The following numbers are provided only as an example. Actual power consumption will vary depending on the exact configuration, temperature, voltage level, etc. Refer to the appropriate system chassis document for more information.

Table 6-1. STL2 Server Board Calculated Power Consumption

Device(s)	3.3V	+5V	+12V	-12V	5V Standby	Totals
Server Board	4.6A	12.5A	0.06A	0.0A	0.18A
Processors (87% VRM
efficiency, 100% utilization)
1 x 667 MHz/256K		4.02A
processor
1 x 733 MHz/256K		4.21A
processor
1x 800EB MHz/256K		4.78A
processor
1x 866 MHz/256K		5.26A
processor
1x 933 MHz/256K		5.63A
processor
1x 1 GHz/256K processor		6.0A
Memory (Four PC133	5.5A
Registered GB SDRAM
DIMMs)
PCI Connectors
32 bit PCI slots (10W per slot		8.0A			0.4A
on 5V)
64 bit PCI slots (10W per slot	6.06A				0.2A
on 3.3V)
USB (500mA per connector)		1.00A
Keyboard/Mouse		0.50A
SCSI term power		Included in board spec.
Fans (3 chassis and 2			1.32A
processor)
Total Current	16.16A	34.0A	1.38A	0.0A	0.78A	Total
Total Power	53.33W	170.0W	16.6W	0.0W	3.9W	243.83W

Revision 1.0 6-81