ASRock 870 Extreme3 R2.0 [9/59] Caution

CAUTION!

1. ASRock UCC (Unlock CPU Core) feature simplifies AMD CPU activation. As

long as a simple switch of the UEFI option “ASRock UCC”, you can unlock the

extra CPU core to enjoy an instant performance boost. When UCC feature is

enabled, the dual-core or triple-core CPU will boost to the quad-core CPU, and

some CPU, including quad-core CPU, can also increase L3 cache size up to

6MB, which means you can enjoy the upgrade CPU performance with a better

price. Please be noted that UCC feature is supported with AM3/AM3+ CPU

only, and in addition, not every AM3/AM3+ CPU can support this function

because some CPU’s hidden core may be malfunctioned.

2. This motherboard supports Untied Overclocking Technology. Please read “Un-

tied Overclocking Technology” on page 40 for details.

3. This motherboard supports Dual Channel Memory Technology. Before you

implement Dual Channel Memory Technology, make sure to read the

installation guide of memory modules on page 17 for proper installation.

4. Whether 1866/1800/1600MHz memory speed is supported depends on the

AM3/AM3+ CPU you adopt. If you want to adopt DDR3 1866/1800/1600

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

5. Due to the operating system limitation, the actual memory size may be

less than 4GB for the reservation for system usage under Windows

7 /

Vista

/ XP. For Windows

OS with 64-bit CPU, there is no such limitation.

6. For microphone input, this motherboard supports both stereo and mono modes.

For audio output, this motherboard supports 2-channel, 4-channel, 6-channel,

and 8-channel modes. Please check the table on page 13 for proper connection.

7. ASRock Extreme Tuning Utility (AXTU) is an all-in-one tool to ne-tune

different system functions in a user-friendly interface, which is including

Hardware Monitor, Fan Control, Overclocking, OC DNA and IES. In Hard-

ware Monitor, it shows the major readings of your system. In Fan Control,

it shows the fan speed and temperature for you to adjust. In Overclocking,

you are allowed to overclock CPU frequency for optimal system

performance. In OC DNA, you can save your OC settings as a profile and

share with your friends. Your friends then can load the OC profile to their

own system to get the same OC settings. In IES (Intelligent Energy

Saver), the voltage regulator can reduce the number of output phases to

improve efficiency when the CPU cores are idle without sacrificing

computing performance. Please visit our website for the operation proce-

dures of ASRock Extreme Tuning Utility (AXTU).

ASRock website:

http://www.asrock.com