nickj@syma.sussex.ac.uk (Nick Jagger) (01/09/91)
I have a IBM PS/2 70 A21 for which I would like an additional large hard drive (between 300 and 600 Mbytes). As far as I can tell I cant add another drive internally, anyway the bay appears to be a 3.5" bay and the only large drives I have seen are 5.25". Is this true, also if I buy an external hard drive will it have to be ESDI to be compatible with the existing 120Mbyte drive? Will a standard controller work with the relatively longer cables that an external drive implies? Also does anyone know a a good UK supplier of cases for external drives. I will post a summary of responses
weir@husc9.harvard.edu (Robert C. Weir) (01/11/91)
A couple questions from someone new to the PS/2. I have a 50 Z and wanted to get a numeric coprocessor. Do I need to get a special MCA compatible one or is that just recommended to get the best performance? Also, does anyone know of a music card for the PS/2 which will allow me to play polyphonic music? All the cards I've seen advertised are for the PC. Thanks in Advance, Rob weir@husc9.harvard.edu
louisg@vpnet.chi.il.us (Louis Giliberto) (01/12/91)
A numeric coprocessor doesn't care if you have MCA or not; you need the rightone for your CPU. For example, I have the IBM 55SX. It has a 386sx processor, so I need to get the 387sx chip. These chips plug into a socket on the circuit board, and not into an expansion slot. As for music boards, ROland makes one for MCA, but it costs like $700. 32 seperate voices and all that. As for an inexpensive one, I've yet to find one. If you do, let all of us know.
hh2@prism.gatech.EDU (HAAS) (01/12/91)
In article <1991Jan11.174015.23555@vpnet.chi.il.us> louisg@vpnet.chi.il.us (Louis Giliberto) writes: > >As for music boards, ROland makes one for MCA, but it costs like $700. >32 seperate voices and all that. As for an inexpensive one, I've yet >to find one. If you do, let all of us know. Are we talking apples and pairs? Roland makes a midi card, but the street price I was quoted was MUCH less than $700. Do they also make an A/D, D/A card? If so, I'd like to hear more about it, but I'd REALLY doubt that the card would be compatible with programs written for the Soundblaster or Adlib cards. There are many 12-bit A/D, D/A cards for the MCA, and a few 16-bit cards, but that's a different market, and the boards are generally run from $700 to $1500, depending on max sampling rate, # of bits, # of channels, and other features. hh -- Harry Haas GTRI/RIDL/DB "What makes it DO that!?" - Bones Georgia Institute of Technology, Atlanta Georgia, 30332 uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!hh2 Internet: hh2@prism.gatech.edu hhaas@{gtri01|rmadsun}.gatech.edu
bank@lea.ncsu.edu (Dave The DM) (01/19/91)
In article <5289@husc6.harvard.edu> weir@husc9.UUCP (Robert C. Weir) writes: >A couple questions from someone new to the PS/2. I have a 50 Z and wanted to >get a numeric coprocessor. Do I need to get a special MCA compatible one or >is that just recommended to get the best performance? > > >Also, does anyone know of a music card for the PS/2 which will allow me to play >polyphonic music? All the cards I've seen advertised are for the PC. > >Thanks in Advance, > >Rob >weir@husc9.harvard.edu Since the Intel 80x87 math coprocessors plug directly into the system board in a pre-designated socket, it is immaterial which bus design (ISA, EISA, MCA) you have. If I recall correctly, the 50 Z uses an 80386SX (better known as the 80386SuX) CPU and if I'm straight on that then you need to make sure you get an 80387SX math coprocessor. I don't think it would appreciate a true 80387 (aka 80387DX). As for which exact chip you should get, I can only say that you should make sure you get one that meets (or exceeds) you system's clock speed. Don't get one that is rated slower than your main CPU. Dave the DM bank@lea.csc.ncsu.edu