Please update the ARC-1882i legacy BIOS to EFI BIOS from Areca FTP or website.
On Asus P8Z68-V Pro BIOS: Advanced Mode, going into Boot, please refer below steps:
1. Interrupt 19 Capture → Enable
2. PCI ROM Priority] → EFI Compatible.
Tags: ARC-1882i, BIOS, FTP, install, RAID, Windows 7, Windows 7