Using the Marvel SATA controller on ASUS P52 Premium

How do I make use of the the secondary SATA controller on Asus P5Q Premium?

This motherbord has two SATA controller:
Southbridge ICH10R
6 xSATA 3 Gb/s ports Intel® Matrix Storage Technology Support RAID 0,1,5,10

Silicon Image Sil5723 (Drive Xpert technology)
4 x SATA 3Gb/s (orange and blue)

I can not find any information in the BIOS for the Sil5723 controller. Can I use this controller to connect my operatingsystem hard drive? When I tried it did not find any hard drive.

The only configuration for hard drives in the BIOS is for the Intel ICH10R SATA controller.
I was planning to use this controller for my RAID storage and keep my operatingsystem hard drive seperate.

The only settings I could find there was to enable or disable the Marvel IDE. I have already tried this.
When it is enabled I get the following message during boot:
Initializing.....
Adapter 1
Disk information:
No hard disk is deteced!

Anyway, as I understand the manual it seems like the Marvel IDE settings is for the onboard IDE connector for Ultra DMA 133/100. The only thing I could read about in the manual for the Sil SATA connector is for use with EZ Backup and Superspeed.

Under the BIOS Tools Menu... you'll see the settings for the TWO Drive Xpert controls.

Drive Xpert Control : Orange and White E1 & E2 SATA ports
Drive Xpert Control 2 : Blue and White E3 & E4 SATA ports

You need to install the Sil drivers in Windows to use those drives.

Can not edit without registering. The second line has a type error where storate should be storage.

Anyway for the time being I'll just have to keep my drive on the same controller. The PC is a file server/NAS and I would not feel comfortable with the storage devices on the same controller as the operating system disk drive. I.E. to reduce single point of failure.