krab@iesd.auc.dk (Kresten Krab Thorup) (11/08/90)
Sometimes it happens,that my loppy-drive doesn`t recognize when I insert a new floppy.... When I try to "dir" it, it displays the previous directory listning of that drive , and even if I `enter' the disk by typing "A:" I still cannot find nor execute any files... BUT - if I run the chkdsk command on the floppy - it somehow initializes the disk, and the contents of this floppy is available! Thanks, Kresten please E-mail me at: krab@iesd.auc.dk
marshall@wind55.seri.gov (Marshall L. Buhl) (11/09/90)
krab@iesd.auc.dk (Kresten Krab Thorup) writes: >Sometimes it happens,that my loppy-drive doesn`t recognize >when I insert a new floppy.... >When I try to "dir" it, it displays the previous directory >listning of that drive , and even if I `enter' the disk by >typing "A:" I still cannot find nor execute any files... >BUT - if I run the chkdsk command on the floppy - it somehow >initializes the disk, and the contents of this floppy is >available! Would you be running QEMM on a DOS 4 machine? -- Marshall L. Buhl, Jr. EMAIL: marshall@seri.gov Senior Computer Missionary VOICE: (303)231-1014 Wind Research Branch 1617 Cole Blvd., Golden, CO 80401-3393 Solar Energy Research Institute Solar - safe energy for a healthy future
bstone@convex.com (Barry Stone) (11/09/90)
Do you have a disk accelerator program installed? I had to debug a system that couldn't format floppies with the disk accelerator installed. When I de-installed it, the floppies formatted fine.
andreap@ms.uky.edu (Peach) (11/09/90)
krab@iesd.auc.dk (Kresten Krab Thorup) writes: >Sometimes it happens,that my loppy-drive doesn`t recognize >when I insert a new floppy.... >When I try to "dir" it, it displays the previous directory >listning of that drive , and even if I `enter' the disk by >typing "A:" I still cannot find nor execute any files... >BUT - if I run the chkdsk command on the floppy - it somehow >initializes the disk, and the contents of this floppy is >available! Sounds like a pin 34 problem to me. Harold Peach, hgpeach@ca.uky.edu
krab@iesd.auc.dk (Kresten Krab Thorup) (11/09/90)
Thanks a lot for all the letters... The problem is now solved.. Some times I have been using a CACHE program for my floppy --- just to see how it was.. So this must be the solution - if you having the same problem as descibed in the article below don't use a cache program for your floppy! Thanks, Kresten
jc58+@andrew.cmu.edu (Johnny J. Chin) (11/11/90)
krab@iesd.auc.dk (Kresten Krab Thorup) writes: >Sometimes it happens,that my loppy-drive doesn`t recognize >when I insert a new floppy.... >When I try to "dir" it, it displays the previous directory >listning of that drive , and even if I `enter' the disk by >typing "A:" I still cannot find nor execute any files... >BUT - if I run the chkdsk command on the floppy - it somehow >initializes the disk, and the contents of this floppy is >available! It sound like to me that you have either a problem with the controller and/or the drive itself. Is you floppy a 5.25" 1.2MB drive or a 3.5" drive (either 720kb or 1.44mb)? If is not, you need not worry about pin-34. Pin-34 on the 360kb drive are always grounded. Things to try. First, make sure that the cables are on correctly, colored edge to pin-1. Next, format a blank disk on another computer and place it in yours. Now try to copy a file to this disk. If it fails, most likely it is your drive. If not, see if you can read the file on the other computer. If the diskette every shows up as being bad ... the drive has a faulty head. Controller card errors are a bit more rare, especially if it has been working before. Also, on most systems, controller errors will appear at bootup. __________ ___ / \ / / /_/ / /\/ _/ / / / __/. /__ / / / / / / / / "Happy Computing ..." / / Internet: Johnny.J.Chin@andrew.cmu.edu / ------- / 4730 Centre Ave. #412 BITnet: jc58@andrew \__________/ Pittsburgh, PA 15213 UUCP: ...!uunet!andrew.cmu.edu!jc58 Computer Dr. Carnegie Mellon University "If you don't like having backups ... try driving without your spare tire." ______________________________________________________________________________ Disclaimer: The views expressed herein are STRICTLY my own, and not CMU's.
elmquist@nachos.SSESCO.com (Chris Elmquist) (11/12/90)
In article <marshall.658089324@wind55> marshall@wind55.seri.gov (Marshall L. Buhl) writes: >krab@iesd.auc.dk (Kresten Krab Thorup) writes: > >>Sometimes it happens,that my loppy-drive doesn`t recognize >>when I insert a new floppy.... other symptoms of the problem deleted... >Would you be running QEMM on a DOS 4 machine? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Is there a documented problem here? -- Chris Elmquist, N0JCF elmquist@nachos.SSESCO.com -- Chris Elmquist, N0JCF elmquist@nachos.SSESCO.com
marshall@wind55.seri.gov (Marshall L. Buhl) (11/14/90)
elmquist@nachos.SSESCO.com (Chris Elmquist) writes: >In article <marshall.658089324@wind55> marshall@wind55.seri.gov (Marshall L. Buhl) writes: >>krab@iesd.auc.dk (Kresten Krab Thorup) writes: >> >>>Sometimes it happens,that my loppy-drive doesn`t recognize >>>when I insert a new floppy.... > other symptoms of the problem deleted... >>Would you be running QEMM on a DOS 4 machine? >Is there a documented problem here? Oops! This was intended as a private reply. I had a problem with DOS 4 and QEMM386 v. 4 early in the year. It gave me problems like the above and also prevented me from formatting 3.5" floppies in drive B:. When I removed QEMM, the problem went away. I was busy and didn't have time to track down the problem. I just quit using QEMM. Then Win3 came along and I couldn't use it anyway. I've since gotten QEMM 5.1 and I am not having the old problems. I don't use the same parameters on my QEMM device statement as I did then, so I assume one of the parameters caused the conflict. BTW, I've been using QEMM 5.1 for about a week now. I use it with Win3 and it saves me 80K-100K of base RAM. So far, no problems. Based on this limited experience, I can highly recommend QEMM 5.1 to anyone. I apologize for my earlier followup. -- Marshall L. Buhl, Jr. EMAIL: marshall@seri.gov Senior Computer Missionary VOICE: (303)231-1014 Wind Research Branch 1617 Cole Blvd., Golden, CO 80401-3393 Solar Energy Research Institute Solar - safe energy for a healthy future
uw@fb14vax.cs.uni-sb.de (Uli Weis) (11/14/90)
From article <MbD3Cby00UhWQ0xM0H@andrew.cmu.edu>, by jc58+@andrew.cmu.edu (Johnny J. Chin): > > krab@iesd.auc.dk (Kresten Krab Thorup) writes: >>Sometimes it happens,that my loppy-drive doesn`t recognize >>when I insert a new floppy.... > >>When I try to "dir" it, it displays the previous directory >>listning of that drive , and even if I `enter' the disk by >>typing "A:" I still cannot find nor execute any files... > >>BUT - if I run the chkdsk command on the floppy - it somehow >>initializes the disk, and the contents of this floppy is >>available! > > It sound like to me that you have either a problem with the controller and/or > the drive itself. Is you floppy a 5.25" 1.2MB drive or a 3.5" drive (either > 720kb or 1.44mb)? If is not, you need not worry about pin-34. Pin-34 on the > 360kb drive are always grounded. [Remark: I didn't receive the original posting, just Johnny's followup, may be, I missed something...] Do You use cache software & does it cache the floppy? I had similar problems when using a cache program with drive A:. May be You use some other TSR. Test Your system with a "plain dos" (e.g. use a floppy to boot), if Your problems still occur, You will have a hardware failure (but as Johnny does I don't expect this) BTW: Anybody ever used ATronics boards (ATI-386/486)? Your experience? Greetings uli -- Ulrich Weis | UUCP: ...!uunet!unido!sbsvax!uw Universitaet des Saarlandes | or uw@sbsvax.UUCP FB 14 - Informatik (Dept. of CS) | DOMAIN: uw@cs.uni-sb.de Bau 36, Zi. 119.1, Im Stadtwald 15 | D-6600 Saarbruecken 11, W. Germany | Phone: +49 681 302 4134 =============================================================================== It's easy to be tolerant as long as someone has the same opinions You have ... ===============================================================================
bryan@tahoe.unr.edu (Bryan Wolf) (11/15/90)
In article <256@nachos.SSESCO.com> elmquist@nachos.SSESCO.com (Chris Elmquist) writes: >In article <marshall.658089324@wind55> marshall@wind55.seri.gov (Marshall L. Buhl) writes: >>krab@iesd.auc.dk (Kresten Krab Thorup) writes: >> >>>Sometimes it happens,that my loppy-drive doesn`t recognize >>>when I insert a new floppy.... I've seen this problem with new 1.4M floppies. There is a jumper on most floppy drives where the edge card connector plugs into the cable. If this jumper is set to the wrong position (one of two possibilities) then you'll get this problem and others. Please don't confuse this jumper with the jumpers directly on the hard drive. This one is directly on the edge card connecter. Change the jumper and see if that solves the problem. Watch for other problems, though. Also, before you go randomly changing jumpers, it's a good idea to write down their original settings. If your drive has been working for a while and just now started this, then this probably isn't the solution. disclaimer: You do it. You take the heat. -- Sadly, most computer users eventually become / bryan@tahoe.unr.edu computer sellers to support their habits. / Bryan Wolf. whee.
martyz@groucho (11/16/90)
In article <MbD3Cby00UhWQ0xM0H@andrew.cmu.edu> jc58+@andrew.cmu.edu (Johnny J. Chin) writes: > >krab@iesd.auc.dk (Kresten Krab Thorup) writes: >>Sometimes it happens,that my loppy-drive doesn`t recognize >>when I insert a new floppy.... > >>When I try to "dir" it, it displays the previous directory >>listning of that drive , and even if I `enter' the disk by >>typing "A:" I still cannot find nor execute any files... > >>BUT - if I run the chkdsk command on the floppy - it somehow >>initializes the disk, and the contents of this floppy is >>available! > I had this same problem and found that lowering the number of BUFFERS in my CONFIG.SYS corrected it. With BUFFERS=40, my 3.5" drive behaved the way you mentioned - it wouldn't recognize that I had changed diskettes. With BUFFERS=8, the problem went away. If you find the answer, I'd like to hear it. I'm sure I'm just covering up the real problem. -- Marty Zimmerman Computer Services University of Idaho <martyz@ted.cs.uidaho.edu> or <martyz@idui1.bitnet>
angelini@apollo.HP.COM (Bob Angelini) (11/17/90)
>krab@iesd.auc.dk (Kresten Krab Thorup) writes: >>Sometimes it happens,that my loppy-drive doesn`t recognize >>when I insert a new floppy.... > >>When I try to "dir" it, it displays the previous directory >>listning of that drive , and even if I `enter' the disk by >>typing "A:" I still cannot find nor execute any files... > >>BUT - if I run the chkdsk command on the floppy - it somehow >>initializes the disk, and the contents of this floppy is >>available! This is a common problem encountered when adding floppy drives (1.44's in particular) to a PC. Generally the problem is that the Disk Change option jumper is not set properly on the drive. Pin 34 of the floppy connector must be the Disk Change line. This signals the system that the disk has been changed so the system re-reads the disk. As a side note, "Control C" will clear the buffer and cause the system to re-read the disk. Bob Angelini
root@gsy1.UUCP (Scott Yates N4BBB) (11/23/90)
Most drives have a "Disk Change" jumper. Check the docs. This has popped
up many times over the years, and is well known
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