try this on your Stylistic:
attach a keyboard.
go into the bios setup main page.
go down to IDE HARD DISK DRIVE SUBMENU.
for Show HDD Parameters, do NOT press enter
go to HDD Configuration. set this to 'User Defined'.
set Cylanders to '4200'.
set Heads to '16'.
set Sectors per track to '63'.
set Write Precomp to '0'
set Multisector Transfers to '16 sectors'.
set LBA Mode Control to 'Enabled'
set Transfer Mode to 'Fast PIO 1'.
escape out and save changes & exit.
when the Stylistic reboots, do not worry about what the screen shows for harddrive size.