The UEFI as Dr.Strangelove said, is a feature that allows the user to use HDDs of 2TB or more as bootable devices. If you are going to use the 3TB hdd as a storage drive you should not encounter a problem and the UEFI is not required for this purpose.
Thank you all for the quick replies.
The UEFI BIOS and Windows x64 is only needed if I install Windows on a hard drive larger than 2 TB.
I need to know if the G31 Intel chipset supports 3TB disks to be used as a secondary drive, Windows will be installed on another hard drive.
It may be that it works on MBR scheme with partitions smaller than 2TB, but I need to know if accept a single GPT partition scheme using the entire hard drive space.
The GPT format is used when using a bootable drive. If you are going to use the 3TB drive as storage, the format you should use is NTFS and you should not encounter a problem using the driver in your G31 board.
The hard drive that I use has 3 TB capacity.
I know that to be able to use all 3TB in a single partition, the disk must be in the GPT scheme.
If I use MBR scheme, will only be able to create partitions with a maximum of 2.2 TB. Like the hard drive is 3TB, I will have to create at least two partitions.
I will not install Windows on it, I do not need UEFI BIOS.
But I still have doubt if the total capacity will be recognized by the G31 chipset (ICH7 south bridge).
Found on the Intel website that this chipset does not recognize drives over 2.2 TB, but I think it is only in RAID.
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You are correct. Sometimes while in raid the full capacity may not be available but when using the Drive as storage you should no encounter problems with it.
That was my question. Thank you.