Can t install properly my 8 tb WD hd , it gives me 1492.91 gb

hello,
i can t install properly my 8 tb WD hd , it gives me 1492.91 gb instead of 8000 gb ,i install a partition GPT but i have old bios not a bios EFI nevertheless i have windows 7 64 bits
, i want only hd data. i read that i can work to make a data hd with win 7 64 bits with an old bios
but it doesn t
is there any utilities to help

thank you before hand

Hi,

I would recommend that you verify the hard drive size limit your motherboard supports.