Intel STL2 Product Guide - Page 74

Worksheet, Calculating DC Power Usage

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Worksheet, Calculating DC Power Usage 1. List the current for each board and device in the appropriate voltage level column. 2. Add the currents in each column. Then go to the next worksheet. Table 8. Power Usage Worksheet 1 Current (maximum) at voltage level: Device +3.3 V +5 V 5 V Standby Server board 46 A 12.5 A .18 A Primary Processor (866MHz/256MB) 4.78 A Secondary Processor (866MHz/256MB) 4.78 A Terminator, if no second processor Memory (four 64 MB DIMMs) 5.5 A PCI slot 1 2.0 A .1 A PCI slot 2 3.03 A .1 A PCI slot 3 3.03 A .1 A PCI slot 4 2.0 A .1 A PCI slot 5 2.0 A .1 A PCI slot 6 2.0 A .1 A PCI slot 7 2.0 A .1 A 1st 3.5-inch hard disk drive 2nd 3.5-inch hard disk drive 3rd 3.5-inch hard disk drive 4th 3.5-inch hard disk drive 5th 3.5-inch hard disk drive 6th 3.5-inch hard disk drive 7th 3.5-inch hard disk drive 3.5-inch diskette drive CD-ROM drive Fans (3 chassis and 2 processor) +12 V .006A 1.32 A -12 V Total Current 74 Intel Server Board STL2 Product Guide

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74
Intel
Server Board STL2 Product Guide
Worksheet, Calculating DC Power Usage
1.
List the current for each board and device in the appropriate voltage level column.
2.
Add the currents in each column.
Then go to the next worksheet.
Table 8.
Power Usage Worksheet 1
Current (maximum) at voltage level:
Device
+3.3 V
+5 V
5 V Standby
+12 V
–12 V
Server board
46 A
12.5 A
.18 A
.006A
Primary Processor
(866MHz/256MB)
4.78 A
Secondary Processor
(866MHz/256MB)
4.78 A
Terminator, if no second processor
Memory (four 64 MB DIMMs)
5.5 A
PCI slot 1
2.0 A
.1 A
PCI slot 2
3.03 A
.1 A
PCI slot 3
3.03 A
.1 A
PCI slot 4
2.0 A
.1 A
PCI slot 5
2.0 A
.1 A
PCI slot 6
2.0 A
.1 A
PCI slot 7
2.0 A
.1 A
1
st
3.5-inch hard disk drive
2
nd
3.5-inch hard disk drive
3
rd
3.5-inch hard disk drive
4
th
3.5-inch hard disk drive
5
th
3.5-inch hard disk drive
6
th
3.5-inch hard disk drive
7
th
3.5-inch hard disk drive
3.5-inch diskette drive
CD-ROM drive
Fans (3 chassis and 2 processor)
1.32 A
Total Current