Nvidia TESLA K20 User manual

BD-06499-001_v02 | November 2012
Board Specification
TESLA K20 GPU ACTIVE
ACCELERATOR

Tesla K20 GPU Active Accelerator BD-06499-001_v02 | ii
DOCUMENT CHANGE HISTORY
BD-06499-001_v02
Version Date Authors Description of Change
01 October 9, 2012 MC, GG,
SM Preliminary Information (Information contained within this document is subject to change)
02 November 9, 2012 GG, SM •Removed “Preliminary Information” as this board
specification is no longer preliminary
•Removed “NVIDIA confidential”
•Updated Table 1
•Updated “Power Specifications” section

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TABLE OF CONTENTS
Overview ........................................................................................... 1
Key Features..................................................................................... 2
Configuration .................................................................................... 3
Mechanical Specifications....................................................................... 4
PCI Express System ............................................................................. 4
Tesla K20 Active Bracket ...................................................................... 5
Power Connectors............................................................................... 6
Auxiliary 6-Pin PCI Express Power Connector ............................................ 6
Extenders ........................................................................................ 7
Power Specifications............................................................................10
Power by Rail...................................................................................10
Energy Star Report.............................................................................11
Thermal Specifications .........................................................................12
Cooling Solution................................................................................12
Support Information.............................................................................14
Certificates and Agencies.....................................................................14
Agencies......................................................................................14
Languages.......................................................................................15

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LIST OF FIGURES
Figure 1. Tesla K20 Active GPU Accelerator Board ......................................... 1
Figure 2. Tesla K20 GPU Active................................................................ 4
Figure 3. Tesla K20 Active Bracket............................................................ 5
Figure 4. Auxiliary 6-Pin PCI Express Power Connector .................................... 6
Figure 5. Long Extender with Offset .......................................................... 8
Figure 6. Flat Extender ......................................................................... 8
Figure 7. Short Extender with Offset ......................................................... 9
Figure 8. Active Fan Sink ......................................................................12
LIST OF TABLES
Table 1. Board Configuration.................................................................. 3
Table 2. 6-Pin PCI Express Power Connector Pinout ....................................... 7
Table 3. PCI Express Power Connectors.....................................................10
Table 4. Power by Rail ........................................................................10
Table 5. Energy Star Report ..................................................................11
Table 6. Fan Environmental Specifications and Conditions ..............................12
Table 7. Languages Supported ...............................................................15

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OVERVIEW
The NVIDIA®Tesla®K20 graphics processing unit (GPU) active accelerator board is a
PCI Express, dual-slot full height (4.376 inches by 10.5 inches) form factor computing
module comprising of a single GK110 GPU. The Tesla K20 active accelerator is designed
for workstations and offers a total of 5 GB of GDDR5 on-board memory and supports
PCI Express Gen2.
The Tesla K20 can be configured by the OEM or by the end user to enable or disable
ECC that can fix single-bit errors and detect double-bit errors. Enabling ECC will cause
some of the memory to be used for the ECC bits, so the user available memory will
decrease by 10%. On the Tesla K20, the register files, cache, and DRAM are ECC
protected.
Figure 1. Tesla K20 Active GPU Accelerator Board

Overview
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KEY FEATURES
GPU
Number of processor cores: 2496
Processor core clock: 706 MHz
Package size: 45 mm × 45 mm 2397-pin flip chip ball grid array (S-FCBGA)
Board
PCI Express Gen2 ×16 system interface
Physical dimensions: 4.376 inches × 10.5 inches, dual-slot
Display Connectors
None
Power Connectors
Two 6-pin PCI Express power connectors
Memory
Memory clock: 2.6 GHz
Memory bandwidth: 208 GB/sec
Interface: 320-bit
●Total board memory: 5 GB
●20 pieces of 128M × 16 GDDR5, SDRAM
BIOS
2Mbit Serial ROM

Overview
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CONFIGURATION
The Tesla K20 GPU active accelerator board is available in the following configuration
(Table 1).
Table 1. Board Configuration
Specifications Tesla K20
Generic SKU reference 699-22081-0204-xxx
Chip GK110
Package size GPU 45 mm × 45 mm 2397-pin S-FCBGA
Processor clock 706 MHz
Memory clock 2.6 GHz
Memory size 5 GB
Memory I/O 320-bit GDDR5
Memory configuration 20 pieces of 128M ×16 GDDR5 SDRAM
Display connectors None
Power connectors Two 6-pin PCI Express power connectors
Board power ~225 W
Thermal cooling solution Active fan sink
Form factor Tesla Form Factor B (10.5 in length)
Weight without extender 826 grams
Available extenders •Long Extender with Offset
•Short Extender with Offset
•Flat Extender (short)

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MECHANICAL SPECIFICATIONS
PCI EXPRESS SYSTEM
The Tesla K20 GPU active accelerator board (Figure 1) conforms to the PCI Express full
height (4.376 inches by 10.5 inches) form factor.
Figure 2. Tesla K20 GPU Active
10.5 inches
4.376 inches

Mechanical Specifications
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TESLA K20 ACTIVE BRACKET
As shown in Figure 3, the Tesla K20 includes a vented bracket.
Figure 3. Tesla K20 Active Bracket

Mechanical Specifications
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POWER CONNECTORS
The Tesla K20 GPU active accelerator board supports two 6-pin PCI Express power
connectors on the "east end" of the board.
Auxiliary 6-Pin PCI Express Power Connector
The Tesla K20 GPU active accelerator board is a high powered board solution and it
utilizes power from the PCI Express connector as well as the external power (a single 6-
pin PCI Express power connector is required for the Tesla K20). Figure 4 shows the
specification, and Table 5 shows the pinouts for the 6-pin external PCI Express power
connector.
Figure 4. Auxiliary 6-Pin PCI Express Power Connector

Mechanical Specifications
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Table 2. 6-Pin PCI Express Power Connector Pinout
Pin Number Description
1 +12 V
2 +12 V
3 +12 V
4 GND
5 Sense
6 GND
EXTENDERS
The Tesla K20 GPU active accelerator board provides three extender options as shown in
the following figures.
NVPN: 320-0866-000 – Long Extender with Offset (Figure 5)
●Card + Extender = 13.338 inches
NVPN: 320-0867-000 – Flat Extender (Figure 6)
●Card + Extender = 12.283 inches (312 mm) full length
NVPN: 320-0868-000 – Short Extender with Offset (Figure 7)
●Card + Extender = 12.283 inches (312 mm) full length

Mechanical Specifications
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Figure 5. Long Extender with Offset
Figure 6. Flat Extender

Mechanical Specifications
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Figure 7. Short Extender with Offset
Ensure the system can accommodate standard mounting of “Type B” form factor
boards using the NVIDIA extenders.
Using the standard NVIDIA extender ensures greatest forward compatibility with
future NVIDIA product offerings.
If the standard extender will not work, OEMs may design a custom attach method
using the extender mounting holes on the heat sink baseplate. The extender mounting
holes will vary among Tesla products, so designing for flexibility is recommended.

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POWER SPECIFICATIONS
The Tesla K20 GPU active accelerator board requires power from the PCI Express
connector as well as one or two auxiliary power connectors.
Table 3. PCI Express Power Connectors
6-Pin PCIe Power
Connector #1 6-Pin PCIe Power Connector #2 Notes
6-pin cable connected 6-pin cable connected Supported
6-pin cable connected Not connected Not supported. Both 6-pin
power connectors must
always be connected.
Not connected 6-pin cable connected Not supported. Both 6-pin
power connectors must
always be connected.
Not connected Not connected Not supported. Both 6-pin
power connectors must
always be connected.
POWER BY RAIL
Table 4 lists the average power (in watts) by rail numbers for the Tesla K20 GPU active
graphics while running DGEMM.
Table 4. Power by Rail
PEX12V PEX3V3 EXT12V EXT12V Total Board Power
45 W 2 W 84 W 81 W 212 W

Power Specifications
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ENERGY STAR REPORT
Table 5 lists the energy star report for the Tesla K20 GPU active graphics board. The
Energy Star measurements have been done using NBody simulation.
Table 5. Energy Star Report
Specification Description
Brand Tesla K20
GPU GK110
Board P2081
SKU 204
Clocks •706 MHz (core)
•2.6 GHz (memory)
Frame buffer 320-bit
Memory GDDR5 SGRAM
PEX ×16
Idle power: ASPM OFF 13.9 W
Idle power: ASPM ON 14.1 W
Maximum power: ASPM OFF 143.55 W
Maximum power: ASPM ON 144.2 W

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THERMAL SPECIFICATIONS
COOLING SOLUTION
NVIDIA has designed an active fan sink (Figure 8) to cool the GPU, memories and
power components. For fan and environmental specifications refer to Table 6.
Figure 8. Active Fan Sink
Table 6. Fan Environmental Specifications and Conditions

Thermal Specifications
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Specifications Conditions
Rated voltage 12 V
Operating voltage 10.8 to 12.6 V DC
Rated current 0.86 Amp (maximum 1.80 Amp)
Rated power 10.32 W (maximum 21.60 W)
Speed 5000 RPM
Life expectancy 50,000 hours continuous operation at 55 °C
with 15 to 65% RH
Operating temperature -10 °C to 70 °C
Storage temperature -40 °C to 75 °C
Operating humidity 5% to 90% RH
Storage humidity 5% to 95% RH

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SUPPORT INFORMATION
CERTIFICATES AND AGENCIES
Agencies
Australian Communications Authority and Radio Spectrum Management Group of
New Zealand (C-Tick)
Bureau of Standards, Metrology, and Inspection (BSMI)
Conformité Européenne (CE)
Federal Communications Commission (FCC)
Industry Canada - Interference-Causing Equipment Standard (ICES)
Korean Communications Commission (KCC)
Underwriters Laboratories (cUL)
Voluntary Control Council for Interference (VCCI)

Support Information
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LANGUAGES
Table 7. Languages Supported
Windows 7 (64-Bit),
Windows Server
2008 and Windows
Server 2008 R2
Linux
English (US) X X
English (UK) X
Arabic X
Chinese, Simplified X
Chinese, Traditional X
Danish X
Dutch X
Finnish X
French X
French (Canada) X
German X
Italian X
Japanese X
Korean X
Norwegian x
Portuguese (Brazil) X
Russian X
Spanish X
Spanish (Latin America) X
Swedish X
Thai X
Note: NVIDIA’s CUDA™ software is only supported in English (U.S.)

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