Power consumption worksheet - sample
The following worksheet makes it easy to make all the calculations you need to make.
Using the worksheet is simple. Inventory the HP Netservers LP 2000r that you will be rackmounting as to
the number of CPUs, memory boards, HDDs and add-in cards installed and input these numbers into the
“Number Installed” column. Multiply this number with the value in the “Unit Input Power (Watts)” column
to get the “Total Input Power (Watts)” for this particular server section. Finally, add all the values in the
“Total Input Power (Watts)” column to arrive at a total power consumption figure for the server.
Then using the formulas provided, calculate the current requirements and the BTUs/Hr.
For example: The calculations for an HP Netserver LP 2000r with 2 each 933 MHz processors, 2 GB of
memory, 2 each HDDs and a NetRAID 1M controller will show the following results:
C a t e g o ry
P a rt Number
D e s c r i p t i o n
Unit Input Power (Wa t t s ) Number Installed Total Input Power (Wa t t s )
Server
LP 2000r Basic boardset,
63.30
1
63.30
FDD, CD, fans, etc
CPU’s
P2467A
Pentium III 866 MHz
35.05
P2468A
Pentium III 933 MHz
37.90
2
75.80
P2453A
Pentium III 1 GHz
41.30
P4632A
Pentium III 1.13 GHz
27.9
P4634A
Pentium III 1.26 GHz
29.5
P5476A
Pentium III 1.4 GHz
31.2
CPU Terminator (if no 2nd CPU)
2.40
Memory
D8265A
128 MB 133 MHz ECC SDRAM
3.45
D8266A
256 MB 133 MHz ECC SDRAM
3.90
D8267A
512 MB 133 MHz ECC SDRAM
4.75
D8268A
1 GB 133 MHz ECC SDRAM
8.05
2
16.10
Hard Disk
P2472A
9.1 GB, 10k RPM Ultra3 SCSI Disk Drive
17.55
2
35.10
Drives
P2473A
18.2 GB, 10k RPM Ultra3 SCSI Disk Drive
21.50
P2474A
36.4 GB, 10k RPM Ultra3 SCSI Disk Drive
24.35
3
73.05
P3579A
73.4 GB, 10k RPM Ultra3 SCSI Disk Drive
15.3
P2507A
18.2 GB, 15k RPM Ultra3 SCSI Disk Drive
22.25
P4507A
36.4 GB, 15k RPM Ultra3 SCSI Disk Drive
17
RAID
D2140A
NetRAID 1Si
9.10
Controllers
D5955A
NetRAID 3Si
19.20
P3410A
NetRAID 1M
10.80
P3411A
NetRAID 2M (64 MB cache)
19.50
1
19.50
P3475A
NetRAID 2M (128 MB cache)
19.50
D9161A
NetRAID 4M (64 MB cache)
24.55
D9351A
NetRAID 4M (128 MB cache)
24.55
Network
D5013B
10/100TX NIC
2.55
Interface Cards N/A
3COM 3C980C-TX 10/100 NIC
4.50
N/A
Intel PILA8472B Dual Port 10/100TX NIC
9.95
N/A
Intel Pro/1000 PWLA8490T Gigabit NIC
7.25
N/A
Intel Pro/1000 PWLA8490SX Gigabit NIC
7.25
Other PCI Cards D6802B
FC HBA
8.70
P3413A
Ultra-160 SCSI HBA
8.70
P1218A
Top Tools Remote Control Card
8.70
A) Total Input Power (Watts) from the worksheet above
272.05
B) Input the AC line power (Volts) that the system is operating on.
220
C) Calculate Input Current (A) = A/B
1.24
D) Calculate the Thermal Dissipation (BTUs/Hr) = A x 3.41
927.69
8
HP Netserver High Density Rack Solutions Overview (LP 2000r)
