Asus M5A99X EVO R2.0 - Manual (Page 170)

6-4 Chapter 6: Multiple GPU support
Chapter 6
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Enabling Dual CrossFireX technology
1. In the AMD VISION Engine Control Center window, click Performance > AMD
CrossFireX TM .
2. Select Enable CrossFireX TM .
3. Select a GPU combination from the drop-down list.
4. Click Apply to save and activate the GPU settings made.
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