ASRock FM2A75 Pro4 FM2 AMD A75 (Hudson D3) Motherboard

Hey again, its that noob with alot of questions.

ASRock FM2A75 Pro4 FM2 AMD A75 (Hudson D3) HDMI SATA 6Gb/s USB 3.0 ATX AMD Motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E16813157333

The motherboard mentioned above has built-in Radeon 7000 series graphics, and my A10 is an apu with  Radeon 7660 graphics, my Motherboard also supports crossfire, so my question is, can i crossfire both the apu and motherboard graphics?

Also, does this motherboard support overvolting so i can overclock? do i need overvolting to overclock? I was planning on overclocking CPU, RAM, and the iGPU on the APU.

actually the motherboard comes with no video chipset so u would just have the APU video

From the Features section:

Support for Socket FM2 100W processors

AMD A75 Hudson D3 Chipset Supports Native 6 x SATA3, 4 x USB 3.0 Ports

Supports Dual Channel DDR3 2600+(OC)

Supports Intel XMP 1.3/1.2 and AMD Memory Profile

Supports AMD Quad CrossFireX, CrossFireX and Dual Graphics

*******Built-in AMD Radeon HD 7000 series graphics, DX 11, PS 5.0*****<-------------(right here)

Multi-VGA Output : D-Sub, DVI-D and HDMI

7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec), Supports THX TruStudio

Supports ASRock XFast 555, OMG, Dehumidifier, Easy RAID Installer, Interactive UEFI , AMD Steady Video 2.0

Free Bundle : CyberLink MediaEspresso 6.5 Trial, ASRock MAGIX Multimedia Suite

from the above details Onboard Video Chipset: NONE