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Check and see what version of the ROM you have installed in the Supra controller card in the 500XP. You have to look for a sticker on the ROM chip which will say AMAB#. The old versions of the ROM have problems with other hard-drives and newer versions of Workbench. You need the latest version (there was someone on Ebay selling the latest ROMs for $15US about 6 months ago, I bought mine then and am now running WB2.1 no problem). I think the drive installed is a 105MB Quantum. Before the new ROM was installed, it would not recognise all the partitions, now it does. With the AMAB6 ROM chip installed, I can use the HDtools included in Workbench 2.1 without problems.The chip is IC9 located under the internal hard drive.The new ROM also helps with using multiple SCSI devices, CD-ROMs and processor cards. I wouldn't be surprised if you have version AMAB4, which could possibly also give trouble with later versions of Workbench (beyond 1.3).http://amiga.resource.cx/exp/supra500xpFrom and old message on Usenet:"If the rom is labeled AmaB6 the supra controller will support large hard drives and Cd-Rom drives. If it is labeled AmaB5 there is no Cd-Rom drive support and if it is labeled AmaB4 or earlier there is no large hard drive support.and from another:"According to the Supra Faxback Document 1501 dated 4/24/96, the current version of the autoboot ROM is "AMAB6". The document also says that the "AMAB6" ROM is required for use with Workbench 2.0x and above."
