What Would Indicate A Misconfigured ATA/IDE HD Or Its Data Cable?
This is a 'how quickly "they" forget' topic. It's been 8+ years since I had to deal with this.
While rooting out the correct nomenclature for the parts for my install additional HDs project, and that the next two HD installs involved ATA/IDE type HDs, I came across a website that "reminded" me/refreshed Ye Olde Grey Cells that ATA/IDE HDs have jumper 'thingies" that have to be set up re master/slave. Ditto re where the master/slave thingies on the 40 pin data cable are plugged in re their respective HDs.
I already have installed two IDE HDs, and didn't pay the slightest attention to the considerations I posted in the above paragraph. And they seem to work just fine (as in maybe I simply lucked out???), but in the digital world appearances can be deceiving.
Does anyone know what would be the indicators if I misconfigured the already installed IDE HDs jumper thingies/cable connections?
You say things seem to be working OK.
If this is so, even when you run programs from two different hard drives which are on the same channel simultaneously, I think you're good. If you have a master and a slave on the channel, the master's controller is making sure the slave only does its thing when the master is not needing to communicate at the same instant.
If you haven't been running programs from both hard drives on the channel, I think you don't know yet if you have a problem on that channel.
Usually an optical drive sharing a channel is set up to be a slave drive. I think a boot drive (containing an OS) is normally (maybe always?) on a master drive.
If I have made a mistake in something I've said in this post, I trust someone who knows the subject better will correct me.
I have no idea how my jumpers and stuff are set, now. I configure all that stuff in the BIOS. You can set boot priorities and that stuff, there.
Please consider this as an addendum type reply to my reply above this one.
This reply is nothing more than a trip down memory lane, and the golden days of yesterday--yeah right!!!!!
The embedded image file is one that I pulled down off the web; it's a visual example (and an almost perfect representation) of the sticker/label that I have on my 2 remaining ATA/IDE HDs re jumper cable settings for the drives.
Once upon a time, long long ago, in a land far, far away when IDEs were the only option, I suspect that those on this board who are of a certain age and were inclined to add HDs to their desktop PCs, of necessity, got to be very familiar with the ins and outs of whats on those stickers. Ditto re the sheer volume of contact with the HDs manufacturer tech support re "issues".
There were those of us who got to be quite familiar with the brain surgery like task of using needle nose pliers/tweezers to more the jumper's around, and to do so without bending the pins, as well as how to find a jumper when it fell on the floor, and it was then nowhere to be found. And of course brainstorming where to find a lost/replacement jumper.
Speaking for myself, I really miss all that aggravation??????
I remember doing that kind of thing.
As I was checking a few sites to refresh my memory before my earlier post, I learned that HDs made by different manufacturers sometimes did not work well together on the same cable.
Also, it is better to have devices well matched in speed to be on the same cable. I think that means the slower device will not only give slower results, it will hold back the faster device which has to let slower little brother have enough time to do what he needs to do.
It's older BIOSs that require manual settings, Katzy. IDE is a pain in the proverbial when you start to multiboot. I also had a drive caddy that would cause grief if I changed drives in said caddy and forgot to set jumpers first. The caddy did make it easier to multi boot, I kept all my data on an internal drive and only used the caddy for the OS of Choice. To change OS all I needed to do was shut down. Unplug said OS and plug the new one in.
If I want to boot from a drive that's not the master, I can change the BIOS, or hold F11, to select the drive, for a temporary thing. My BIOS must be at least ten years old...
Katzy I wrote this up especially for you. If I had to give this reply a topic type title I would call it, "How NOT To Keep Abreast Of Advances In
So I have this ancient PATA/IDE optical disc drive (from the 90's); so today I ordered the parts to add 2 more IDE HDs which would entail adding an IDE PCI controller card; to make room to install it, I began the process by removing my PCI sound card. That's where I had plugged in the optical drive audio cable. So I dug out the MOBO owner manual to see where the onboard audio connector is; the only problem was that there was NO audio connector where the owner manual said there was suppose to be. So I did the usual brainstorming which was along the lines of--it's there somewhere but NOT where the owner manual says it is. I spent well over an hour (on my hands and knees) looking for it; the time involved, of necessity, included removing all the devices plugged into the PC so I could lay it on its side and look around. There's a lot of 'stuff' on the MOBO that I rarely look it, and it really slowed me down to look it over re what's what; but NO JOY.
So I reconnected everything and powered up; I was determined not to have to buy a new optical USB disc drive unless I absolutely had to. So I did the usual Google search bit, and started looking at the hits. One hit had this blurb from an end user saying that he never connected the audio cable--whoa Nellie!!!
He was right; I powered up the optical disc, put in an audio CD, and Voila--music to my ears.
This incident just goes to show just how easy it is to get whiffed by tech advances AKA being in rut re old "practices"; there was nothing in the 30 pg owner manual that spoke to this. So now I know.
The audio connector harks back to the very early days of CD drives when CPU power was so meagre that you could not use the CPU to process the audio without some risk of system stability. I'm going back to the early days of DOS here and the 80286 processor. Some people even needed to make an optical drive work with an 8086 CPU. That was when audio was very definitely an add on, and not part of the MOBO. That did not start until around the 80486 era IIRC.
Yeah... My drives are four SATA and two IDE, along with an IDE DVD drive. Seems I can boot from any of them, even though I've never set any jumpers. Maybe I just got lucky and jumpers just happen to be set in the way that works.
Later versions of IDE were set to CS (Cable select) which meant that, depending upon where in the cable it was connected whether BIOS took it as master or slave. If you look at an IDE cable you'll see a couple of the wires transposed on one of the plugs. Again, this was a BIOS dependent feature, earlier BIOS required the jumpers set as Master Slave and, whilst later BIOS did not necessarily need it, I still used to set M/S on my machines.