External Hard Drive Upgrade Tags: Western Digital Enclosure Hard Drives External Hard Drive Storage Last response: March 12, 2007 7:39 PM in Storage Share crazyj March 12, 2007 4:36:00 PM I have a Western Digital WD1200B005-RNN enclosure. I tooke the WD1200BB 120GB hard drive out and put a Western Digital WD3200JB 320GB hard drive in to try to upgrade it. Windows will only register 128GB of space on the drive. I can only assume this is limitations due to what little hardware is in the enclosure. Is anyone familiar with a way, program or even messing w/ the enclosure itself, to change the enclosure to allow the hard drive to be bigger than 128GB? More about : external hard drive upgrade evongugg a b G Storage March 12, 2007 5:07:21 PM Do you have XP SP1 and 48-bit LBA-compatible BIOS? http://support.microsoft.com/default.aspx?scid=kb;en-us;303013 crazyj March 12, 2007 5:11:06 PM Yes. I even hooked the hard drive up directly to the PC and it shows up correctly as a 300,000,000 byte, 320GB hard drive. Sorry I forgot to mention that. Related resources I\'m having a WD external hard drive WDBAAF0010HBK, after upgrade the WD smart d - Forum Western digital external hard drive problems - Forum Access external hard drive windows 7 - Forum Does an external hard drive "reinstall" software? - Forum **RAW External Hard Drive Fix??** - Forum Can't find your answer ? Ask ! Get the answer crazyj March 12, 2007 5:15:44 PM I now have a theory. I think the enclosure has a chip inside that only allows for FAT32 File system and therefore only allows for 128GB or "127.53 gigabytes" according to Wikipedia. Anyone able to confirm or deny this? evongugg a b G Storage March 12, 2007 5:51:04 PM Like he said, the enclosure may be limited to 128 GB drives, because that is the limit of the chip. Paperdoc a c 286 G Storage March 12, 2007 7:39:54 PM That is possible. 48-bit LBA support necessary to recognize over 137GB came later, and some earlier enclosures did not have it. See if the WD website can confirm this in the unit's specs. Can't find your answer ? Ask ! Publish Related resources: ForumExternal hard drive choice: eSATA or (USB3.0+EC) ForumLaptop as Desktop's external USB hard drive ??? ForumMac OSX on External hard drive ForumSeagate FreeAgent Go 120 GB USB External drive . Drive only upgrade . ForumHard Drive as External Hard Drive ForumSeagate 3TB USB 2.0 External Hard Drive ForumExternal hard drive for gaming? ForumNeed help with an external hard drive ForumSeagate 1 tb external hard drive is not recognized ForumHow to get files off external hard drive ForumBackup windows XP SP1 to external hard drive ForumFirst SSD advice? ForumChecking for errors on my hard disk. ForumWhat's faster? 1- 7200 RPM drive or two 4200 RPM as RAID 0? ForumFormatting a laptop hard drive More resources Read discussions in other Storage categories Hard Drives DVD Drives DVD Writers Optical Media Flash Media NAS/RAID SSD Western Digital !