your using the 3TB drive via the SATA to PATA converter correct? If so its not going to work most likely
The largest ever available PATA drive is 500GB if i remember correctly, but most older motherboards will not accept large drives (incompatibility etc)
Perhaps buy a SATA card instead (PCI SATA/RAID card)
Would this work regardless of M/B spec? I planned to do it this was originally but I don't want to order anything new without conformation, thank's for replying!