Path: utzoo!attcan!uunet!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!mips!sjsca4!poffen From: poffen@sj.ate.slb.com (Russell Poffenberger) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Connecting multiple floppies to an AT Message-ID: <1990Oct2.231546.3442@sj.ate.slb.com> Date: 2 Oct 90 23:15:46 GMT References: Reply-To: poffen@sj.ate.slb.com (Russell Poffenberger) Distribution: comp Organization: Schlumberger Technologies, San Jose, CA. Lines: 35 In article kaldis@emerald.rutgers.edu (Theodore A. Kaldis) writes: >In article krab@iesd.auc.dk (Kresten Krab Thorup) writes: > >> I'm having terrible problems connecting more than two floppyes >> to my AT-clone. > >> I'm recently having an ST-02 SCSI adaptor, which supports two floppies. > >> If I try to plug in another controller for a floppy the new controller >> and drives connected to it is not available at all. > >> Is is possible in any way - without throwing my ST-02 away.. > >It is possible, but not easy. You must obtain a second floppy >controller with adjustable address lines. And then you must also run >a device driver to access the extra floppy drives (hopefully, one will >come with the controller). Such controllers are available, but you >have to hunt for them. You may have to special order it, and it will >probably not be cheap. This is not a problem. I did the same thing a while back. I have an Adaptec AHA1542B SCSI controller that supports two floppies. I use that to control a 1.2M floppy and an Everex Floppy tape backup (uses floppy B). I also wanted to add a 1.44M 3.5" floppy. I got the "intelligent" floppy controller from JDR microdevices (in San Jose, look in Byte or computer shopper for mail-order info on them.) This card not only is switchable to respond as the Aux floppy (3,4), but also has onboard BIOS to install any floppies it finds into the BIOS drive table, so the 3.5" shows up at boot time as drive C. Oh yeah, the price? $49 Russ Poffenberger DOMAIN: poffen@sj.ate.slb.com Schlumberger Technologies UUCP: {uunet,decwrl,amdahl}!sjsca4!poffen 1601 Technology Drive CIS: 72401,276 San Jose, Ca. 95110 (408)437-5254