ATI™ CrossFire™ Pro
User Guide

Part Number: 107-40413-20

ii© 2009 Advanced Micro Devices Inc. All rights reserved.
The contents of this document are provided in connection with Advanced Micro Devices, Inc. (“AMD”)
products. AMD makes no representations or warranties with respect to the accuracy or completeness ofthe contents of this publication and reserves the right to discontinue or make changes to products,
specifications, product descriptions, and documentation at any time without notice. No license, whether
express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by thispublication. Except as set forth in AMD’s Standard Terms and Conditions of Sale, AMD assumes no liability
whatsoever, and disclaims any express or implied warranty, relating to its products including, but notlimited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of
any intellectual property right. AMD’s products are not designed, intended, authorized or warranted foruse as components in systems intended for surgical implant into the body, or in other applications
intended to support or sustain life, or in any other application in which the failure of AMD’s product could
create a situation where personal injury, death, or severe property or environmental damage may occur.
AMD reserves the right to discontinue or make changes to its products at any time without notice.

Trademarks
AMD, the AMD Arrow logo, ATI, the ATI logo, AMD Athlon, AMD LIVE!, AMD Phenom, AMD Sempron,
AMD Turion, AMD64, All-in-Wonder, Avivo, Catalyst, CrossFireX, FirePro, FireStream, HyperMemory,OverDrive, PowerPlay, PowerXpress, Radeon, Remote Wonder, Stream, SurroundView, Theater, TVWonder, The Ultimate Visual Experience, and combinations thereof are trademarks of Advanced MicroDevices, Inc.
HyperTransport is a licensed trademark of the HyperTransport Technology Consortium.
Blu-ray Disc is a licensed trademark of the Blu-ray Disc Association.
HDMI is a licensed trademark of HDMI Licensing, LLC.
DisplayPort is a licensed trademark of Video Electronic Standards Association.
Microsoft, Windows, and Vista are registered trademarks of the Microsoft Corporation in the UnitedStates and/or other jurisdictions.
Other names are for informational purposes only and may be trademarks of their respective owners.
Dolby Laboratories, Inc.

Manufactured under license from Dolby Laboratories. Dolby and the double-D symbol aretrademarks of Dolby Laboratories.
© 1992-1997 Dolby Laboratories, Inc. All rights reserved.
Macrovision
Licensed for limited viewing uses only.
This product incorporates copyright protection technology that is protected by US patents and otherintellectual property rights. Use of this copyright protection technology must be authorized byMacrovision, and is intended for home and other limited viewing uses only unless otherwise
authorized by Macrovision. Reverse engineering or disassembly is prohibited.

Disclaimer
While every precaution has been taken in the preparation of this document, Advanced Micro Devices,
Inc. assumes no liability with respect to the operation or use of AMD hardware, software or otherproducts and documentation described herein, for any act or omission of AMD concerning such products
or this documentation, for any interruption of service, loss or interruption of business, loss of anticipatory
profits, or for punitive, incidental or consequential damages in connection with the furnishing,performance, or use of the AMD hardware, software, or other products and documentation provided
herein. Ensure that you have the latest documentation.

ATI™ CrossFire™ Pro© 2009 Advanced Micro Devices, Inc.

iii

Important Safety Instructions
Note: This product is for use only with compatible UL-listed personal computers that have installation
instructions detailing user installation of this class of product.
Read all instructions before beginning installation. All safety and installation instructions should beread before the product is installed or operated.
Retain all instructions. Safety, installation, and operating instructions should be retained for futurereference.
Heed all warnings. All warnings regarding the product and its operating instructions should be obeyed.
Use appropriate grounding.
Caution:For continued protection against the risk of electric shock and fire, install this accessory only in
products equipped with a three-wire grounding plug, a plug having a third (grounding) pin. This is asafety feature. Do not remove the grounding pin of a three-pin plug.
Attach product securely. All product-securing screws or fasteners should be completely tightened inorder to provide continuous bonding between the product and the PC chassis, as appropriate.

© 2009 Advanced Micro Devices, Inc.

ATI™ CrossFire™ Pro

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ATI™ CrossFire™ Pro© 2009 Advanced Micro Devices, Inc.

Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Installing ATI CrossFire Pro Graphics Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Enabling ATI CrossFire Pro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ATI CrossFire Pro FAQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

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ATI™ CrossFire™ Pro© 2009 Advanced Micro Devices, Inc.

Chapter 1Introduction
ATI™ CrossFire™ Pro leverages ATI CrossFireX™ technology to scale
professional OpenGL applications in a windowed mode by combining thecomputational power of two discreet ATI FirePro™ workstation graphics cards
to drive a single display. Note that unlike ATI CrossFireX, ATI CrossFire Pro does
not allow more than two discreet cards to be combined.
Figure 1–1 ATI CrossFire Pro Diagram© 2009 Advanced Micro Devices, Inc.

ATI™ CrossFire™ Pro

2 IntroductionModes
ATI CrossFire Pro significantly scales high-end DCC, CAD, and VizSim
applications on a single display using the following modes:• Frame Rendering:• AFR (Alternate Frame Rendering): In this mode, all even frames arerendered on one GPU, and all odd frames are rendered on the other.
Most useful for SPECviewperf and geometry-limited applications. ATICrossFire Pro significantly scales applications such as Autodesk Maya,UGS NX, UGS Teamcenter, and Ensight.
Figure 1–2 ATI CrossFire Pro AFR Rendering• SFR (Split Frame Rendering): In this mode, each frame is split into twosections, and each GPU renders one section.
Most useful for VizSim, broadcast, and video applications that are fillrate limited.

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Figure 1–3 ATI CrossFire Pro SFR Rendering• Full Scene Anti-aliasing: This mode provides higher quality anti-aliasing
than single discrete workstation cards.
Most useful for digital mock-ups, optical simulations, TV productions, andvideo applications requiring a high level of image/line quality.
Note: Example applications are trademarks or registered trademarks of theirrespective owners.
For more information on ATI CrossFire Pro, please visit http://ati.amd.com/products/workstation.html.

© 2009 Advanced Micro Devices, Inc.

ATI™ CrossFire™ Pro

4 Introduction

ATI™ CrossFire™ Pro© 2009 Advanced Micro Devices, Inc.

Chapter 2
Installing ATI CrossFire Pro Graphics
Cards
These instructions assume that a PCIe® graphics card has already beensuccessfully installed in the secondary slot (slot one), and that the primary slot
(slot zero) is empty.
Note: Consult your system builder or OEM to ensure that your system has anadequate power supply.
For an up-to-date listing of CrossFire Pro certified motherboards, see
ati.amd.com/products/certification
1. Make sure the computer, monitor, and other peripheral devices are off.
2. Unplug the computer power cord and disconnect the monitor cable fromthe back panel of the computer.
Caution:To avoid possible damage to the motherboard, wait approximately 20
seconds after unplugging the power cord before disconnecting aperipheral or removing a component from the motherboard.
3. Remove the computer cover.
If necessary, consult the computer manual for help removing the cover.
Caution:
Remember to discharge your body’s static electricity by touching thepower supply case or the metal surface of the computer chassis.
4. Locate the primary PCIe slot on the motherboard. If necessary, remove thecorresponding back panel cover.

© 2009 Advanced Micro Devices, Inc.

ATI™ CrossFire™ Pro

6 Installing ATI CrossFire Pro Graphics Cards

5. Align the new workstation card in the primary PCIe slot next to the existinggraphics card and press firmly until the card is fully seated.
Figure 2–1 ATI FirePro Card Installation

Note: You may need to hold open the PCIe card slot-locking mechanismwith your finger when you seat the card.
6. Fasten the workstation card securely to the back panel.
7. Connect external power to the workstation card from the systems power
supply, if necessary.
Consult your ATI FirePro workstation card's user guide, if necessary.

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8. Connect the two ATI FirePro workstation cards using the ATI CrossFire Proflex connector.
Figure 2–2 ATI CrossFire Pro Flex Connector Installation

1

Newly installed ATI FirePro card

2

ATI CrossFire Pro flex connector
Note: Connect the cards using only one flex connector on the “top” ATI
CrossFire Pro connector tab (the one closest to the bracket) on each card

© 2009 Advanced Micro Devices, Inc.

ATI™ CrossFire™ Pro

8 Installing ATI CrossFire Pro Graphics Cards

Figure 2–3 ATI CrossFire Pro Connector Tabs

1Top connector

2

Bottom connector (do not use)

9. Make sure that no cables are interfering with anything inside the computer(for example, a cooling fan) and then replace the computer cover.
10. Reconnect any cables you have disconnected and plug in the computer
power cord.
11. Turn on the monitor and then the computer.
Enable ATI CrossFire Pro in ATI Catalyst™ Control Center as described inChapter 3 Enabling ATI CrossFire Pro.

ATI™ CrossFire™ Pro© 2009 Advanced Micro Devices, Inc.

Chapter 3
Enabling ATI CrossFire Pro
Note: The CrossFire option will not appear unless two workstation cards are
installed in the system and connected using an ATI CrossFire Pro flex connector.
1. From the Graphics Settings tree, expand CrossFireX and click Configure.
2. From the Graphics Adapter list, select the graphics card to act as the displayGPU.
3. Select Enable CrossFireX.
4. Click Apply.

© 2009 Advanced Micro Devices, Inc.

ATI™ CrossFire™ Pro

10 Enabling ATI CrossFire Pro

ATI™ CrossFire™ Pro© 2009 Advanced Micro Devices, Inc.

Chapter 4
ATI CrossFire Pro FAQ
The following are frequently asked questions regarding ATI CrossFire Protechnology.

How do you connect two discreet FirePro cards to enable this feature?
ATI CrossFire Pro requires only one ATI CrossFire Pro flex connector toconnect the two discreet workstation cards to enable this feature. The flex
connector should be connect to the “top” connector tab (the one closest to thebracket).
Can any two ATI FirePro cards be connected to enable this feature?
Currently, only identical ATI CrossFire Pro-ready cards can be combined toenable this feature. All mid-range or greater ATI FirePro cards are ATI
CrossFire Pro-ready. This line-up currently includes the V5700, V7750, V8700,and V8750 products.
Which driver do I need to run applications in the CrossFire Pro mode?
Driver version 8.63 and Catalyst version 8.6x (or later) will support this feature.
Which operating systems are supported for this feature?
Driver version 8.63 supports Windows® XP. Support for Linux andWindows Vista® is planned for a later driver release.
Is this feature platform or chipset dependent? Which platforms does this feature support?
This feature is designed to provide open support for all AMD and Intel chipsets.
Currently, it supports AMD 790FX, 790X, and 790GX platforms and Intel X58,
X48, X38, 975X, and 955X platforms. No proprietary bridge or licensing isrequired to use this feature.
Which professional applications currently scale on ATI CrossFire Pro?
Currently, many Alternate Frame Rendering (AFR) applications that aregeometry bound show good performance scaling, including Autodesk Maya,Ensight, UGS Teamcenter, and UGS NX.
What is the optimal hardware for using this feature?
ATI CrossFire Pro uses the PCI Express® peer-to-peer feature and therefore
performs best with PCIe 2.0 compliant workstations.

© 2009 Advanced Micro Devices, Inc.

ATI™ CrossFire™ Pro

12 ATI CrossFire Pro FAQ

There are two ATI CrossFire Pro connector tabs and only one flex connector supplied inthe box. Which tab should I connect the flex connector to?
All ATI FirePro boards have two ATI CrossFire Pro connector tabs toaccommodate future requirements. Currently, ATI CrossFire Pro requires
only one flex connector, which should be connected to the first cutout (the onenearer to the bracket).
Note: Example applications are trademarks or registered trademarks of theirrespective owners.

ATI™ CrossFire™ Pro© 2009 Advanced Micro Devices, Inc.