Schedule
9:00 - 9:10
Section 1 - Basic intro to power and energy
9:10 - 9:30
Section 2 - Devices for measuring power
9:30 - 9:45
Section 3 - Component specific measurement techniques
9:45-10:00
Section 4 - Advanced power measurement concepts
10:00-10:30
Section 5 – Memory and Compute on various platforms
10:30-11:00
Coffee Break (Dinning Hall)
11:00-11:30
Section 6 - Instruction-based power models
11:30-11:50
Section 7 - Open discussion
11:50-12:00
Section 8 - Summary and conclusion
Component Power
Test System
-
Intel Core i7 3770K (Ivy Bridge)
4-core 3.5 GHz TDP=77w
Intel Extreme Board DZ77GA-70K
Antec 520 Watt Power Supply
Seagate 1.5 TB HDD
Kingston KVR16N 8 GB 1600Mhz
NVIDIA GT 520
*Unless otherwise specified, processor is set to run at 3.5 GHz
at the default voltages with Turbo and Speedstep features
disabled
CPU Power
12V CPU
CPU
CPU
Power = Voltage x Current
CPU
CPU
34.8 – 43.8
can vary due to its power saving features. When the processor is in a low-pow
idle state it requires less power to be provided by the VR. The VR responds to
lower power demand by shutting down unneeded phases thereby increasing ov
power efficiency. Each VR phase has an LED connected to it that indicates whe
phase is active. Figure 9 shows the location of the VR status LEDs.
Figure 9. Location of the VR Status LEDs
Motherboard Power
Motherboard Power
12V
3.3V
5V
DRAM
15.3 Watts
6.4 Watts
Motherboard Components
Fans
~2.5 watts each
Z77 Chipset
TDP: 4.1 watts
Gigabit Ethernet
TDP:
.66 watts
Idle:
.05
Empty: .03 watts
Harddrives
http://www.tomshardware.com/reviews/2tb-hard-drive-constellation,2630-9.html
System Measurements
12V
12V
3.3V
5V
Components
GUPS (Random Access) Benchmark Experiments
16 watts
10 watts
6 watts
4 watts
7 watts
-----42 watts
40 watts
7 watts
10 watts
-----99 watts
DRAM
GPU
Fans
Chipset
Other
Motherboard total
CPU
Harddrive
PSU Overhead
AC Power
Measured with PowerMon
Measured with PowerMon
Measured with WattsUp
PCIe Accelerators
8-Pin
12 V rail [<= 150 Watts]
6-Pin
12 V rail [<= 75 Watts]
PCIe
3.3 V rail [Max of 9.9 Watts]
12 V rail [Max of 60 Watts]
PCIe Accelerators
Model
Idle
Max
TDP
NVIDIA GTX
Titan
72.9
290.9
250*
NVIDIA K40
25.8
200.4
245
Intel Xeon Phi
(7110A)
20.0
270.0
300