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<h2 class="pHeading1">
CrossFire&#8482;
</h2>

<p class="pBody">
Use CrossFire&#8482; to combine the power and performance of two or more Visual Processing Units (VPUs) to drive a single display. Harness the power of a dual PCI Express<sup class="cSuperscript"></sup> based computer to deliver up to twice the VPU performance when using 3D graphics applications.
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1013038", false);</script>Requirements<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1013038", false);</script>
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<p class="pBody">
The CrossFire&#8482; aspect requires the following to be present:
</p>
<div class="pSmartList1"><ul class="pSmartList1">

<div class="pSmartList1"><li>A Motherboard with two PCI Express<sup class="cSuperscript"></sup> x16 slots</li></div>

<div class="pSmartList1"><li>Two CrossFire&#8482; graphics cards</li></div>

<div class="pSmartList1"><li>Depending on the CrossFire&#8482; configuration, you may need to connect the CrossFire&#8482; with an external interconnect cable or two internal CrossFire&#8482; bridge interconnects. (For more information, see the CrossFire&#8482; Getting Started Guide for your CrossFire&#8482; card for more information.)</li></div>
</ul></div>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1013069", false);</script>Display Modes<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1013069", false);</script>
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<p class="pBody">
When CrossFire&#8482; is enabled, any <span style="font-style: italic">one</span> of the three following display modes are available:
</p>
<div class="pSmartList1"><ul class="pSmartList1">

<div class="pSmartList1"><li>SuperTiling - A graphical load-balancing scheme where CrossFire&#8482; renders alternate small 32x32 pixel squares in a fine-grained checkerboard pattern. This configuration increases image rendering quality, as each card processes half of the complex 3D objects in the pixel squares.</li></div>

<div class="pSmartList1"><li>Scissor Mode - A graphical load-balancing scheme where two graphical cards are used to render two halves of an image display. One graphics card renders the top half of the screen while the second graphics card renders the bottom half.</li></div>

<div class="pSmartList1"><li>Alternate Frame Rendering - A graphical load-balancing scheme where two graphics cards are used to render alternate frames of the display. This configuration increases the detail of the 3D objects each card can render, as each card handles half of the total number of frames.</li></div>
</ul></div>

<p class="pBody">
When Catalyst<sup class="cSuperscript"></sup> A.I. is enabled, it selects the optimal rendering mode for target applications. For applications that are not identified in Catalyst<sup class="cSuperscript"></sup> A.I., or when Catalyst<sup class="cSuperscript"></sup> A.I. is disabled, default CrossFire&#8482; rendering modes are used. Alternatively, select Super Anti-Aliasing. 
</p>

<p class="pBody">
By default, either SuperTiling or Scissor modes are applied, depending on the application. Alternate frame rendering mode is used for applications identified in Catalyst<sup class="cSuperscript"></sup> A.I. when enabled. 
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1013104", false);</script>Improving Image Quality<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1013104", false);</script>
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<p class="pBody">
You can alternatively enable Super Anti-Aliasing in the Catalyst<sup class="cSuperscript"></sup> Control Center, which is a feature that improves image quality by combining the results of full-screen anti-aliasing across two graphics cards in a CrossFire&#8482; configuration. The two graphics cards work on different anti-aliasing patterns within each frame. 
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1013115", false);</script>Latest CrossFire&#8482; Developments<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1013115", false);</script>
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<p class="pBody">
For the latest information see the CrossFire&#8482; Web page at:
</p>

<p class="pBody">
<a href="http://ati.com/crossfire" target="_window">ati.com/crossfire</a>
</p>
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<h4 class="pHeading5">
What do you want to do?
</h4>

<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1012851", false);</script>Enable CrossFire&#8482;<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1012851", false);</script>
</p>
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<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>In Advanced View, from the Graphics Settings tree, click <span style="font-weight: bold">CrossFire&#8482;</span>.</li></div>

<div class="pSmartList1"><li>Click <span style="font-weight: bold">Enable CrossFire&#8482;</span>.</li></div>
</ol></div>

<p class="pBody">
When CrossFire&#8482; is successfully enabled, all display devices, except the one used by CrossFire&#8482;, will be disabled.
</p>

<p class="pIndented1">
Note:	CrossFire&#8482; Super Anti-Aliasing can be adjusted in the Catalyst<sup class="cSuperscript"></sup> Control Center 3D settings aspect.
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1012881", false);</script>Set the level of adaptive anti-aliasing<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1012881", false);</script>
</p>
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<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>From the Graphics Settings tree, expand <b class="cBold">3D</b>.</li></div>

<div class="pSmartList1"><li>Click <b class="cBold">Adaptive Anti-Aliasing</b>.</li></div>

<div class="pSmartList1"><li>Adjust the <b class="cBold">Adaptive Anti-Aliasing</b> control slider to the desired setting.</li></div>
</ol></div>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1013135", false);</script>Set Catalyst<sup class="cSuperscript"></sup> A.I. settings<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1013135", false);</script>
</p>
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<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>From the Graphics Settings tree, expand<span style="font-weight: bold"> 3D</span>.</li></div>

<div class="pSmartList1"><li>Click <b class="cBold">Catalyst</b><sup class="cSuperscript"></sup> A.I.</li></div>

<div class="pSmartList1"><li>If necessary, clear the check mark from<span style="font-weight: bold"> Disable</span> <b class="cBold">Catalyst</b><sup class="cSuperscript"></sup> A.I.</li></div>

<div class="pSmartList1"><li>Click and drag to slider to the desired setting.</li></div>
</ol></div>

<p class="pIndented1">
Note:	Change to Catalyst<sup class="cSuperscript"></sup> A.I. settings is not shown in the 3D Preview.
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1012691", false);</script>Apply your settings<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1012691", false);</script>
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<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>Click <b class="cBold">Apply</b><b class="cBold"> </b>to save your changes and leave the Catalyst<sup class="cSuperscript"></sup> Control Center open.</li></div>

<div class="pSmartList1"><li>Click <b class="cBold">OK</b> to save your changes and exit the Catalyst<sup class="cSuperscript"></sup> Control Center.</li></div>
</ol></div>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1011740", false);</script>Discard your settings<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1011740", false);</script>
</p>
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<div class="pSmartList1"><ul class="pSmartList1">

<div class="pSmartList1"><li>Click <span style="font-weight: bold">Discard</span> to ignore any unsaved changes and restore the settings that existed when the Catalyst<sup class="cSuperscript"></sup> Control Center was opened or the last time <span style="font-weight: bold">Apply</span> was used. Discard does not close the Catalyst<sup class="cSuperscript"></sup> Control Center.</li></div>
</ul></div>

<p class="pIndented1">
Note:	Clicking<b class="cBold"> </b>Discard<b class="cBold"> </b>applies to all features of an aspect, not just the feature in the current view.
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1011945", false);</script>Change motherboard BIOS settings<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1011945", false);</script>
</p>
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<p class="pBody">
Some motherboards may have a system BIOS option to switch between single or dual PCIe&#8482; slot support. The default setting may be single slot support.
</p>

<p class="pBody">
Refer to the motherboard&#39;s manual for information to enable dual PCIe&#8482; slot support.
</p>

<p class="pBody">
For more information see the CrossFire&#8482; Web page at:
</p>

<p class="pBody">
<a href="http://ati.com/crossfire" target="_window">ati.com/crossfire</a>
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1012190", false);</script>Graphics cards with different amounts of memory<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1012190", false);</script>
</p>
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<p class="pBody">
In some CrossFire&#8482; configurations, graphics card with different amounts of memory can by used. However, restarting your computer is required after enabling CrossFire&#8482;. This will cause CrossFire&#8482; to reduce the amount of memory on the card with the most amount of memory to match the memory size of the graphics card with the least amount of memory.
</p>

<p class="pBody">
Clicking <span style="font-weight: bold">OK</span> to the memory mismatch error message will restart your computer.
</p>

<p class="pIndented1">
Note:	When disabling CrossFire&#8482; you will be given the option to restart your computer to restore the original graphics memory size or continue with the reduced memory size.
</p>

<p class="pBody">
For more information see the CrossFire&#8482; Web page at:
</p>

<p class="pBody">
<a href="http://ati.com/crossfire" target="_window">ati.com/crossfire</a>
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1012893", false);</script>Card Reversal Recommended<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1012893", false);</script>
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<p class="pBody">
A recommendation message to reverse the graphics card positions may appear if the master graphics card is not installed into the primary PCIe&#8482; slot. Although CrossFire&#8482; can be enabled, performance may be improved by reversing the graphics cards in the computer.
</p>

<p class="pBody">
See your motherboard&#39;s manual to determine which is the primary PCIe&#8482; slot.
</p>

<p class="pBody">
For more information see the CrossFire&#8482; Web page at:
</p>

<p class="pBody">
<a href="http://ati.com/crossfire" target="_window">ati.com/crossfire</a>
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1013001", false);</script>3D client is active<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1013001", false);</script>
</p>
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<p class="pBody">
You will not be able to start CrossFire&#8482; if a 3D application, game, or video playback, such as a DVD movie, is running. 
</p>

<p class="pBody">
Close all open 3D applications, games, and movie player applications then enable CrossFire&#8482;.
</p>

<p class="pBody">
For more information see the CrossFire&#8482; Web page at:
</p>

<p class="pBody">
<a href="http://ati.com/crossfire" target="_window">ati.com/crossfire</a>
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1012945", false);</script>CrossFire&#8482; Is Currently Unavailable<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1012945", false);</script>
</p>
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<p class="pBody">
This error has occurred because CrossFire&#8482; did not correctly detect your graphics hardware or there is a problem with the software.
</p>
<div class="pSmartList1"><ul class="pSmartList1">

<div class="pSmartList1"><li>Check the graphics cards are installed correctly.</li></div>

<div class="pSmartList1"><li>If required for your CrossFire&#8482; configuration, check the CrossFire&#8482; cards are connected correctly and the cables are secure.</li></div>

<div class="pSmartList1"><li>Close all running 3D applications.</li></div>

<div class="pSmartList1"><li>Re-install the CATALYST&#8482; Control Center. For information on installing the software, see the Getting Started Guide that came with your graphics card.</li></div>
</ul></div>

<p class="pBody">
For more information, see the CrossFire&#8482; Web page at:
</p>

<p class="pBody">
<a href="http://ati.com/crossfire" target="_window">ati.com/crossfire</a>
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1012979", false);</script>Disabling CrossFire&#8482;<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1012979", false);</script>
</p>
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<p class="pBody">
When CrossFire&#8482; is disabled you will need to restore your graphics settings. It is recommended that you create a Profile that contains all your settings. 
</p>

<p class="pBody">
For more information see the CrossFire&#8482; Web page at:
</p>

<p class="pBody">
<a href="http://ati.com/crossfire" target="_window">ati.com/crossfire</a>
</p>
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<p class="pDropDownClosed">
<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorOpen("exwp1011880", false);</script>Create a profile<script type="text/javascript" language="JavaScript1.2">WebWorks_WriteAnchorClose("exwp1011880", false);</script>
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<p class="pBody">
A profile can be created from any aspect of Catalyst<sup class="cSuperscript"></sup> Control Center.
</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">

<div class="pSmartList1"><li>Make customized changes by adjusting the various sliders and buttons for the aspects to be included in your profile.</li></div>

<div class="pSmartList1"><li>Open the <span style="font-weight: bold">Profiles Manager</span>.</li></div>

<div class="pSmartList1"><li>Enter a name for your Profile in <span style="font-weight: bold">Create or Edit Profile</span>.</li></div>

<div class="pSmartList1"><li>Enter a description of the profile.</li></div>

<div class="pSmartList1"><li>Select the composition, activation, and applications options that you wish to apply to the profile.</li></div>

<div class="pSmartList1"><li>Click <span style="font-weight: bold">Save</span>.</li></div>
</ol></div>

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Copyright  2005-2006, ATI Technologies Inc. All rights reserved.<br />&#160;
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