EIDE (Enhanced IDE) vs IDE
in [Hardware]
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From: kony on 4 Mar 2006 04:00 On Sat, 04 Mar 2006 02:45:27 GMT, kony <spam(a)spam.com> wrote: >On Fri, 03 Mar 2006 11:07:02 GMT, David Fairbrother ><simmastacopter(a)gmail.com> wrote: > >>What is EIDE? I am thinking of replacing a hard drive in my old (old, >>old old, 1996 PC) and it's - like most HDD's of its vintage - IDE. I >>have seen an "EIDE" hard drive from Western Digital advertised with my >>local IT company. Would this use the same connectors/be compatible with >>this old computer? My old PC is an HP Pavilion 7222. The HDD is Western >>Digital 400BB IDE 40GB/7200RPM/100. (i'm not completely sure that it is >>EIDE - could somebody check? i heard somewhere it was) >>any help appreciated :) > > >It would be better if nobody used the terms EIDE or IDE at >all. What you need is more properly called ATA, or Parallel >ATA. Considering the age of your system, it would support >ATA33 at most and likely not the capacity support for modern >drives. It likely has an 8MB or somewhat higher limit but >not as high as modern drives. > >You might check for a motherboard bios update, but I >wouldn't expect much. You could buy a PCI ATA133 controller >card such as a Promise Ultra133. You could use the software >included with retail drives to install a drive overlay (some >do it automagically) but the drive overlay is the least >desirable option. > >Why would you pay a pretty penny for a 400GB HDD for a '96 >system? Yes the connectors are compatible if it's actually >a "PC" rather than a server (that might use SCSI instead) >but the capacity limit (as well as the limit on capacity >from an old OS) might be an issue. Oops, I misread 40GB as 400GB, ANd above I mistyped 8GB as 8MB. The point is that it is unlikely that your motherboard will support a 40GB HDD natively. If there is a bios update available (and you can find it after a decade), there's a good chance it would increase the HDD capacity support if the board had a fair support from the manufacturer. Otherwise, you can take a wait-n-see approach... buy the drive, install and see what capacity the system reports. if it doesn't report the entire capacity then you need the PCI ATA controller card, the drive overlay software, OR there is a 3rd choice I had forgotten- that many drives have a 32GB capacity limit jumper setting so all you'd have to do is set that jumper and you loose a few GB, not even 10GB since the actual capacity of a 40GB HDD is in decimal not binary, but the 32GB that the jumper sets is binary GB.
From: Curious George on 5 Mar 2006 04:04 On Fri, 03 Mar 2006 11:07:02 GMT, David Fairbrother <simmastacopter(a)gmail.com> wrote: >What is EIDE? I am thinking of replacing a hard drive in my old (old, >old old, 1996 PC) and it's - like most HDD's of its vintage - IDE. I IIRC 1996 vintage PC's shipped with EIDE. >have seen an "EIDE" hard drive from Western Digital advertised with my >local IT company. Would this use the same connectors/be compatible with >this old computer? My old PC is an HP Pavilion 7222. The HDD is Western >Digital 400BB IDE 40GB/7200RPM/100. (i'm not completely sure that it is >EIDE - could somebody check? i heard somewhere it was) >any help appreciated :) The difference between IDE & EIDE is trivial & obsolete. AFAIK your PC can't natively recognize a drive over 2GB or use the newer UDMA modes. You can physically connect & install this 40GB drive but you will need to either install a software layer (from the disk manufacturer or ontrack) or use a PCI card to work. It will be seen with the software layer but will perform in PIO mode. It will perform faster & be easier to deal with if you buy a $20 PCI card. Unfortunately likely not by very much, though.
From: don on 5 Mar 2006 23:31 2 GB limit is a file system limit and can be overcome by using Fat32, NTFS, etc. however you would have to be using win98 or later (I am guessing you are anyway). "Curious George" <cg(a)email.net> wrote in message news:b79l02t09mne42tcarnojt5fhfn9mbjg26(a)4ax.com... > On Fri, 03 Mar 2006 11:07:02 GMT, David Fairbrother > <simmastacopter(a)gmail.com> wrote: > > >What is EIDE? I am thinking of replacing a hard drive in my old (old, > >old old, 1996 PC) and it's - like most HDD's of its vintage - IDE. I > > IIRC 1996 vintage PC's shipped with EIDE. > > >have seen an "EIDE" hard drive from Western Digital advertised with my > >local IT company. Would this use the same connectors/be compatible with > >this old computer? My old PC is an HP Pavilion 7222. The HDD is Western > >Digital 400BB IDE 40GB/7200RPM/100. (i'm not completely sure that it is > >EIDE - could somebody check? i heard somewhere it was) > >any help appreciated :) > > The difference between IDE & EIDE is trivial & obsolete. AFAIK your > PC can't natively recognize a drive over 2GB or use the newer UDMA > modes. > > You can physically connect & install this 40GB drive but you will need > to either install a software layer (from the disk manufacturer or > ontrack) or use a PCI card to work. It will be seen with the software > layer but will perform in PIO mode. It will perform faster & be > easier to deal with if you buy a $20 PCI card. Unfortunately likely > not by very much, though.
From: Curious George on 6 Mar 2006 12:32 On Mon, 06 Mar 2006 04:31:23 GMT, "don" <bubba(a)bubba.net> wrote: >2 GB limit is a file system limit and can be overcome by using Fat32, NTFS, >etc. however you would have to be using win98 or later (I am guessing you >are anyway). Sorry. No cigar http://www.seagate.com/support/kb/disc/bioslmt.html http://www.pcguide.com/ref/hdd/bios/size.htm http://www.storagereview.com/guide2000/ref/hdd/bios/sizeMB1970.html http://www.computeruser.com/articles/daily/8,8,1,0604,01.html <quote> Note: Do not confuse this capacity barrier with the other capacity barrier which is exactly 2 binary gigabytes. That one is a file system issue and is unrelated to the BIOS matter we are discussing here. </quote>
From: kony on 6 Mar 2006 14:53
On Mon, 06 Mar 2006 17:32:04 GMT, Curious George <cg(a)email.net> wrote: >On Mon, 06 Mar 2006 04:31:23 GMT, "don" <bubba(a)bubba.net> wrote: > >>2 GB limit is a file system limit and can be overcome by using Fat32, NTFS, >>etc. however you would have to be using win98 or later (I am guessing you >>are anyway). > >Sorry. No cigar >http://www.seagate.com/support/kb/disc/bioslmt.html >http://www.pcguide.com/ref/hdd/bios/size.htm >http://www.storagereview.com/guide2000/ref/hdd/bios/sizeMB1970.html >http://www.computeruser.com/articles/daily/8,8,1,0604,01.html > ><quote> >Note: Do not confuse this capacity barrier with the other capacity >barrier which is exactly 2 binary gigabytes. That one is a file system >issue and is unrelated to the BIOS matter we are discussing here. ></quote> It's a bit premature to speculate on these things, if there are bios updates still available the limit might be much higher. It might be good for the OP to research this. |