This document provides information on calculating power requirements for various IT equipment. It details the typical power consumption of PCs ranging from around 200 watts on average. Server power consumption for a dual processor server is listed as 450 watts. Printer power consumption is shown for different HP printer series when active, on standby, and in power save mode. UPS sizing considerations are mentioned, along with the importance of power factor in determining the real capacity of an UPS based on its listed VA capacity.

1. Power Requirements Calculation

2. Index
Introduction
Power Requirements Calculation
 PC power consumption
 Server power consumption
 Printers power consumption
 UPS Sizing

3. Power Requirements
Calculation

4. PC Power Consumption
Component Power Consumption (watt)
Motherboard 30
CPU Quad Core I5 73
Memory 1 GByte 4
HDD 12
Monitor LCD 50
DVD/CD 12
Speakers 4
Graphic Card (next slide)
CPU Cooler 10
Average PC Power Consumption ≈ 200 watt

5. VGA Product Description Idle Power Loaded Power
NVIDIA GeForce GTX 480 SLI Set 100 W 700 W
ZOTAC GeForce GTX 480 Reference Design 48 W 355 W
ATI Radeon HD 4870 X2 Reference Design 100 W 320 W
NVIDIA GeForce GTX 295 Reference Design 74 W 302 W
ATI Radeon HD 5970 Reference Design 48 W 299 W
ATI Radeon HD 4850 CrossFireX Set 123 W 210 W
ATI Radeon HD 4890 Reference Design 65 W 268 W
NVIDIA GeForce GTX 470 Reference Design 42 W 278 W
MSI NX8800GTX-T2D768E-HD OC GeForce 8800 GTX 76 W 201 W
ATI Radeon HD 5870 Reference Design 25 W 240 W
Sapphire Radeon HD 4850 X2 11139-00-40R 73 W 180 W
NVIDIA GeForce 9800 GX2 Reference Design 85 W 186 W
NVIDIA GeForce GTX 280 Reference Design 35 W 225 W
NVIDIA GeForce GTX 260 (216) Reference Design 42 W 203 W
AMD/ATI Radeon HD 4870 Reference Design 58 W 166 W
NVIDIA GeForce GTX 460 Reference Design 18 W 167 W
ATI Radeon HD 5850 Reference Design 24 W 157 W
NVIDIA GeForce 8800 GT Reference Design 31 W 133 W
ATI Radeon HD 4770 RV740 GDDR5 Reference Design 37 W 120 W
ATI Radeon HD 5770 Reference Design 22 W 115 W
Sapphire Radeon HD 4670 GDDR4 9 W 70 W
VGA Card Power Consumption

6. Server power consumption
Dual Processor server : 450 watt

7. Printer Power Consumption
HP 2000 series HP 3000 series HP 5000 Series
Active 550 780 600
Standby 7 15 27
Powersave 7 9 7

8. UPS Sizing

9. On-lineOff-line
UPS types

10. Power Factor
Example:
- UPS with capacity 100VA
-Power factor is 0.07
Then Real capacity of the UPS = 0.7 * 1000 = 700 Watt
UPS Capacity (watt) = Power Factor * UPS Capacity (VA)