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- From: joker@diku.dk (Morten Christian Holmgreen)
- Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.ps2.hardware
- Subject: Re: PS/2 harddrive upgrade
- Message-ID: <1993Jan25.231022.3773@odin.diku.dk>
- Date: 25 Jan 93 23:10:22 GMT
- References: <1993Jan23.224538.20072@magnus.acs.ohio-state.edu> <1993Jan24.195937.10569@odin.diku.dk> <93025.120801U39648@uicvm.uic.edu>
- Sender: joker@ask.diku.dk
- Organization: Department of Computer Science, U of Copenhagen
- Lines: 45
-
- Darius Vaskelis <U39648@uicvm.uic.edu> writes:
-
- >>>My Uncle has a veterinary clinic in Waverly, Ohio. He presently runs
- >>>VBOSS on a PS/2 Model 55 SX, and needs to upgrade from his present 60MB
- >>>harddrive to ~120MB harddrive
-
- >>According to my info, this is a 16Mhz 80386XS with and IDE controller and
- >>2 disk-drive bays in the machine. In that case, you can buy almost any
-
- >Whew! Don't trust that info!
-
- Sorry, you're right - don't trust that info. Though it comes directly from
- IBM, it's not correct. I've double-checked elsewhere and it's NOT an IDE-
- controller, but an ESDI-controller. (and a 386SX, not XS of course)
-
- Furthermore there are NO available bays in the machine, so the 60Mb must be
- removed.
-
- >It is a 16MHz Intel 386SX-based machine, 16-bit Micro Channel
- >Architecture. However, you cannot just plug in any old IDE drive.
-
- Right about that one, too.
-
- >It uses a proprietary bus interface for hard disks, and IBM used special
- >ESDI drives. Flavors made by IBM were 30, 40, 60, 80, 120, and 160M.
- >These are PS/2 ESDI drives that can be used in Model 50 (with the right
- >interposer card), 50Z, 55SX, and 70. They are 3.5" HH drives with power
- >integrated right into the interface. (No seperate power cable...)
-
- >The 55SX has two 3.5" HH bays. Generally, one is for the floppy and one
- >is for the hard disk. So, to upgrade the drive, you'd need to swap the
- >original drive (IBM only sold them with 30/40/60/80M drives) for one of
- ------------
- They also sold them with 160M drives (model 55SX-161). I'm sitting
- with an old pricelist right here. I don't have a price for these drives,
- but in relation to IBM's current disk-prices, it should go for around
- $500 if it's at all available from IBM any more.
-
- Sorry about the initial mis-information. Next time I'll double-check FIRST.
-
- Christian
- --
- M. Christian Holmgreen / joker@diku.dk / mochmch@uts.uni-c.dk
- M.Sc. student, University of Copenhagen, Dept. of Computer Science
- "Human errors can only be avoided if one can avoid the use of humans"
-