My new GA-EP35-DS4 System would not boot with both RocketRaid and Intel IHCR Raid enabled. If disabling the Intel SATA is not an option, this following solution will allow the system to boot by disabling the Rocketraid BIOS from loading at startup (bolding mine):
Answer: Some motherboards may be unable to load the card’s BIOS into memory, especially if other devices (such as onboard RAID or SCSI controllers) are active. This could prevent the card, or other device, from booting the system
If these additional controllers are not needed, try disabling them using the motherboard’s BIOS menu.
If this is not an option, press the “End” key when the host adapter’s BIOS is first displayed – this will cancel the card’s BIOS load.
This should prompt the motherboard to skip the host adapter card, and proceed to the next device.Arrays and disks attached to the card will still be accessible through the operating system.
To avoid pressing the “End” during every boot session, try disabling some of the card’s BIOS features. To do so, flash (upgrade) the card’s BIOS, and access the BIOS sub-menu.
If you intend to boot from the host adapter card, disable the option listed as “Reallocate EBDA”. If you do not need to boot from the host adapter card, disable both the “Reallocate EBDA” and “INT13″ options. For more information about this upgrade procedure, please download the BIOS User Manual posted at this link:http://www.highpoint-tech.com/manuals/Updating_BIOS.pdf