FDD - Low Density Disk Drive question (replace with 1.4 - but in 486)

Posted on 2004-09-08
Medium Priority
Last Modified: 2008-03-10
Hello All,

  I've got a friend with a Low-Density (DD) FDD who uses the LD 740Kb disks.  It has burned out.  Can I replace it with a HD 1.4Mb disk drive?

   Do the older FDD's need adapters, etc.  I've seen adadpters on 5.25 Drives (and some FDD Cables).  Any good resources (with pics I hope) for this?  I know what LD/HD SS/DS SD/DD etc are. (Densities).

  Thanks for your time in advance.

Question by:jennifer_borman

Author Comment

ID: 12013455
P.S. - The PC is a 486DX - I believe this might make a difference, but if a newer 1.4Mb Compat drive (3 Mode), might squeak by.  Thanks!
LVL 13

Accepted Solution

zvitam earned 1050 total points
ID: 12013592
The 1.4MB 3.5" Floppy drive interface is fully compatible with the interface of the 720K 3.5" Floppy drive, so there is no need for an adapter.

Just don't forget to change the floppy drive type in the BIOS.

The new Drive will read the old floppies as well.

Hope that helps.
LVL 93

Assisted Solution

nobus earned 150 total points
ID: 12013657
you can have problems reading the old floppies, if the old drive went slightly out of alignment during the years. you can then always try reading those floppies on other drives, and make a copy of them
Will You Be GDPR Compliant by 5/28/2018?

GDPR? That's a regulation for the European Union. But, if you collect data from customers or employees within the EU, then you need to know about GDPR and make sure your organization is compliant by May 2018. Check out our preparation checklist to make sure you're on track today!

LVL 15

Expert Comment

ID: 12015489
FDD controllers are FDD controllers thus theres only cable issues here. Thats it... zvitam is absolutly right!!!


Assisted Solution

Grisk earned 300 total points
ID: 12015938
Hi Jen,

You can replace  740Kb disks with 1.44 MB drive easily
an old power supply usually has power connectors for the 1.44 floppy drive,also there are chances that old floppy cable has connectors for 1.44 floppy drive.


Expert Comment

ID: 12018858
You can swap out the old 740k floppy with a new 1.44 floppy no problem.  Cables will even be a perfect match.

You will need to go into the system BIOS and tell it there is a 1.44mb floppy instead of a 740k one though.  Just find the Floopy Drive A: option and select the 1.44mb instead of the current 740k.

Expert Comment

ID: 12018867
Almost forgot. If you dont change the drive in the BIOS setting it will just recognize the new 1.44 as a 740k drive.

Author Comment

ID: 12081104
Thanks to all.  Some of you answered with similar answers and I feel compelled to award based upon accuracy and timing at this time.  Either way, I appreciate all of your help.  Thanks!!!

Featured Post

We Need Your Input!

WatchGuard is currently running a beta program for our new macOS Host Sensor for our Threat Detection and Response service. We're looking for more macOS users to help provide insight and feedback to help us make the product even better. Please sign up for our beta program today!

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

I use more than 1 computer in my office for various reasons. Multiple keyboards and mice take up more than just extra space, they make working a little more complicated. Using one mouse and keyboard for all of my computers makes life easier. This co…
For years I have put up with a wireless mouse that consistently disappears or is non-responsive.  This is the story of how I discovered it wasn't really the mouse!
How to fix display issue, screen flickering issue when I plug in power cord to the machine. Before I start explaining the solution lets check out once the issue how it looks like after I connect the power cord. most of you also have faced this…
Did you know PowerShell can save you time with SaaS platforms? Simply leverage RESTfulAPIs to build your own PowerShell modules. These will kill repetitive tickets and tabs, using the command Invoke-RestMethod. Tune into this webinar to learn how…
Suggested Courses

624 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question