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• CPU/Chassis temperature sensing
Hardware
• CPU/Chassis/Power Fan Tachometer
Monitor
• CPU/Chassis Quiet Fan (Auto adjust fan speed by CPU tem-
perature)
• CPU/Chassis Fan multi-speed control
• Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore Voltage
• Microsot® Windows® 8.1 32-bit / 8.1 64-bit / 8 32-bit / 8 64-
OS
bit / 7 32-bit / 7 64-bit
• FCC, CE, WHQL
Certiica-
• ErP/EuP ready (ErP/EuP ready power supply is required)
tions
* For detailed product information, please visit our website: http://www.asrock.com
Please realize that there is a certain risk involved with overclocking, including adjust-
ing the setting in the BIOS, applying Untied Overclocking Technology, or using third-
party overclocking tools. Overclocking may afect your system's stability, or even cause
damage to the components and devices of your system. It should be done at your own
risk and expense. We are not responsible for possible damage caused by overclocking.
1. Whether 2450/2100MHz memory speed is supported depends on the AM3/AM3+
CPU you adopt. If you want to adopt DDR3 2450/2100 memory module on this
motherboard, please refer to the memory support list on our website for the compatible
memory modules. ASRock website: http://www.asrock.com
2. Due to the operating system limitation, the actual memory size may be less than 4GB
for the reservation for system usage under Windows® 8.1 / 8 / 7. For Windows® 64-bit
OS with 64-bit CPU, there is no such limitation. You can use ASRock XFast RAM to
utilize the memory that Windows® cannot use.
3. Please plug the power cable to the PCIe power connector only when you install three or
more VGA cards.
990FX Extreme6
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