Date: Sun, 28 Jan 2007 19:20:56 +0100 From: "Avi Cohen Stuart" <[EMAIL PROTECTED]> Subject: RE: [LIB] Largest possible HD in 100/110?
Dan, > > Avi Cohen Stuart & John Martin: > > Allright, thanks for the reply! Let me get this right: the > libretto uses 28-bit adressing, so it can adress 2^28 x 512 > bytes = 128GB (base2 notation) which is 137GB in base10 > notation (you're both right). > > Avi Cohen Stuart: > > You say the Libretto cannot support 48-bit LBA drives because > of a hardware limitation....I don't understand. It can only > be a hardware limitation when you use an external IDE > controller, but since almost all harddrives have a built-in > controller (be it 28-bit or 48-bit) it can only be a BIOS > limitation or OS limitation.... > By the way I did not know about 48-bit LBA until you > mentioned it and I Googled it, found this site: > www.48bitlba.com > Very useful site, and it says even Win98 can be upgraded to > support 48-bit LBA drives, so the only limitation can be the > BIOS, right? I'm talking about the IDE controller in the libretto, not on the hd. It depends if the IDE controller can handle the full 48 bits or not. I'm not sure whether the hardware of the libretto is capable to handle the full 48 bits. It seems do use SCSI-over-IDE (the package command in IDE terms) to access the harddrive when reading in one part of the BIOS. (Still working in disassembling the BIOS...) Avi.
