ECS - Motherboard, Notebook, Tablet PC, System, IPC, LIVA Mini PC

General FAQ
What ECS models can support 3TB HDD?

ECS models with UEFI BIOS can address 3TB HDD with GUID partition Table (GPT) like Intel 6 series chipset. Most legacy systems built before 2011 have a traditional PC BIOS. This type of BIOS uses a Master Boot Record (MBR) and can address to 2.2TB hard disk size only. UEFI BIOS uses a GUID Partition Table (GPT) that can define hard drive larger than 2.2TB. Windows 7 64-bit operating system support booting from UEFI and GPT without the need of a non-Microsoft device driver. This is the Windows native solution for booting a 3TB drive to a single partition.

Installed a bootable OS, Windows 7 64-bit, on a 3TB HDD: 

ECS models with UEFI BIOS support :

GUID Partition Table (GPT) supporting OS:
• Windows 7
• Windows Server 2008
• Windows Server 2008 R2
• Windows Vista
• Windows Server 2003 SP1
• Windows Server 2003 (64-bit)
• Windows XP x64 edition

For more information about GPT&MBR partition, please refer to following,