More Drives?

Of course the old IDEs were 40X40, newer cables are 80X40, 80 wires and 40 pins! Theres not a 80 Pin cable!!

Though the number of wires doubled, the number of connector pins and the pinout remain the same as on 40-conductor cables, and the external appearance of the connectors is identical. Internally, of course, the connectors are different: The connectors for the 80-wire cable connect a larger number of ground wires to a smaller number of ground pins, while the connectors for the 40-wire cable connect ground wires to ground pins one-for-one. 80-wire cables usually come with three differently colored connectors (blue, gray & black) as opposed to uniformly colored 40-wire cable's connectors (all black). The gray connector has pin 28 CSEL not connected; this makes it the slave position for drives configured cable select
 
Last edited:
PC eye said:
What you rejects still haven't figured out yet was where did I mention how many pins were on the connector? :rolleyes: What I DID say was that there was a change made in the cables themselves. The old ide cables were 40pin 40wire not 40pin 80wire. If you took one of the cables out of the AST and tried running them on any newer then ATA33/66 you wouldn't see a system loading any OS from a hard drive or cd/dvd drive either.(well you could load a linux distro with a Grub or Lilo floppy. ssshhhh.... they can't comprehend that.)
Click to expand...


If you recall correctly, your story is that your cables were wider than standard IDE, but they weren't SCSI. You were very clearly proven wrong.

Stop trying to change your story. They were SCSI, simple as that. As has been mentioned, all IDE cables are 40 pin. They can be either 40 conductor or 80 conductor, depending, but they are always 40 pin.
 
SirKenin said:
If you recall correctly, your story is that your cables were wider than standard IDE, but they weren't SCSI. You were very clearly proven wrong.

Stop trying to change your story. They were SCSI, simple as that. As has been mentioned, all IDE cables are 40 pin. They can be either 40 conductor or 80 conductor, depending, but they are always 40 pin.
Click to expand...

Changing stories? If you bothered to pay attention you would have noticed that the wider cables with the larger connectors were from the IBM 386 not the AST 486! :rolleyes:
 
PC eye said:
Changing stories? If you bothered to pay attention you would have noticed that the wider cables with the larger connectors were from the IBM 386 not the AST 486! :rolleyes:
Click to expand...

I know that. My whole discussion was based on the PS/1. Go read my posts. I told you, I didn't want to hear about your damn 486. Remember? But what do you do? When it gets proven that you have no idea what you are talking about in a discussion you do the same thing you do all the time. You change the topic and start talking about something nobody gives a damn about. In this case your stupid AST 486.

You really don't get it do you? I'm getting mad at you, but in reality I don't think you are capable of getting it. At least that's my latest theory. Maybe I've been too hard on you. Maybe I should feel sorry for you instead. :confused:
 
You seem to forget that on the early desktops the pre-ide standard cables were often wider with larger connectors depending on who made the system. Everyone was doing their own thing like Apple to later become MAC and UNIX to become Linux. When industry standards were adopted at some point everyone started using the same size cables whether 40 or 80.
 
You seem to forget that you have no clue what you are talking about and you shouldn't be trying to come off as though you do. You are misleading people, whether intentionally or not. That's not why they come here, unless I miss my guess (sometimes you get lucky I noticed and actually provide relevant resources, which is very good, but it is the exception as opposed to the rule)

Anyways, here is every IDE standard ever developed:

http://www.interfacebus.com/Design_Connector_IDE.html

You will note that ATA-1 is exactly the same width as all the rest, unless you were talking the 44 pin version which was narrower and very rare.

Also notice how it is specified that the limit for devices per channel is two.

You've been busted.
 
Last edited:
Apparently you don't! ""8 or 16 bit data width," 40 pin data ribbon cable/connector" is not the "width" I was even talking about. Your link there fails to even mention any physical measurement of any type of cable listed.

"Also notice how it is specified that the limit for devices per channel is two."
Notice you only select a page that only shows a list of two device cables and any "SCSI" cables that "you claim" were the ones seen in that old IBM 386.

You just busted yourself! :P

For the rest of those that read this thread one cable was saved out of the IBM when it was found tucked away inside that old used office machine. Note that was the first actual desktop brought home and setup. Upon swapping it in for the "blankityblank" 486 machine a larger hard drive and cd rom were realized as need there. Gee I don't have to worry about going out for a cable for the cd rom drive..... :eek: ! :confused: aw crap The connector on the older heavier cable is Too Large :mad: ! Well I'll have to go out for the new 40pin 40 wire ide cable since this "three" device slightly wider and slightly heavier cable is now "worthless"... !!!
 
Last edited:
That page states that ALL IDE interfaces could only support 2 devices per channel. That is what you were talking about wasn't it? Lying to all of us that you had an IDE cable that supported three? Actually, maybe not lying. Just that you had no idea the difference between a SCSI cable and an IDE cable (which makes me wonder what qualifies you to give anyone else advice when you need so much of it yourself, but anyways...not my concern). Want me to quote your post?

You said there was no way that could be a SCSI cable because there was no addon card. Again it was demonstrated that you have no damn idea what you are talking about. I gave you evidence that those machines could come with onboard SCSI. I see you missed that too. Want me to quote the post?

I didn't say that we were talking about data width... Get with the program or go home to your poker buddies. I said 40 PIN. All 40 PIN cables are the same dimensional width.

Here's something to put in your pipe and smoke. Scroll down to the bottom of the page when you're done:

http://www.interfacebus.com/Interface_PC_Buses.html

Oh, and to put the final nail in the coffin, look up the dimensions and specifications of a Maxtor Diamondmax 6800 Ultra ATA.

Please note that drive is compatible with the ATA-1 through 4 spec. The very first 4 specs for ATA/IDE... What does that mean Ace? Simply this.. If there were different size ribbon cables for those specs, that drive wouldn't be backwards compatible.

Here's the manual for that drive for everyone else's enjoyment and your perusal:

http://www.maxtor.com/_files/maxtor...h="physical dimensions of ata-1 ribbon cable"



EDIT: And of course, to everyone else... The guy doesn't know the difference between an IDE cable and a SCSI table. So, just let him stew in his own juices. He doesn't know what he's talking about... It's been demonstrated several times in these forums. Ask him to count the pins on the end of the ribbon and post a picture on the internet for all of us to see... And watch it be 50 pin. haha.
 
Last edited:
"Ask him to count the pins on the end of the ribbon and post a picture on the internet for all of us to see... And watch it be 50 pin. haha."

As usual you are following through on your madness with that statement since the three device cable that came out of the old 386 was tossed when trying to add drives to the 486 to follow. And even if the model could be IDed and it was found to have onboard SCSI who says it was 50 and not 68pin?
 
Of course it was tossed. I wouldn't have expected any different out of you. I gave it to my buddy. I sold it on Ebay. I let the dog eat it. Anything so that you don't have to produce evidence. Well, I'm not surprised at all. Still, you obviously can't refute the obvious. Fair enough.

Oh, and it isn't a 68 pin cable. Although SCSI-3 was introduced in 1994, they originally only had the 50 pin SCSI-3 cable.. We won't mention that they only released it years after the model you owned. So I think it's safe to say that it wasn't 68 pin. Let's include the fact that a 68 pin ribbon cable is roughly the same width as a 40 pin cable, yet you claim yours was much wider. Plus the fact that you would have to be a complete buffoon to mistake a 68 pin interface with a 40 pin interface. The only simularity is that they both have holes in the connector.

If you need pictures, let me know.
 
What you seem to keep missing is that the connector was larger on the cable pulled out of the IBM then the standard 40pin 40wire cable later seen in the "AST 486". Since that time I've found any other cables that looked like the ones seen in the IBM model. The tech that sold the used system at the time "custom built" machines strictly for businesses. That old 386 even looked older then the 286 desktops seen while in training.
 
I'm not missing it at all. You're the one who keeps missing it.. First, let's get one thing clear for the last time. I don't give a shit about your damn AST. It has nothing to do with anything and is only a "red herring", so kindly stop bringing it up.

Now, down to business. The 68 pin SCSI-3 connector is roughly the same size as a 40 pin IDE. Give or take. Thing is, they didn't even exist when that computer was made. The 50 pin SCSI-3 connector was smaller. The ESDI connector was smaller. The RLL/MFM connectors were a pair of connectors.

The only connector that was bigger that was available at that time was a 50 pin SCSI cable, and that's what you had. Man, for Pete's sake. Get it through your head and give it up. You're so desperate to try and prove that you know what you are talking about, because you're trying to maintain some sort of credibility, but you don't have any anymore in my eyes. It just so happens that noone else called you on it before now. That's all there is to it. Sorry man. It happens. :rolleyes:

edit: By the way, I don't give a shit if it was custom built for business or built to power the pump in your pool. They all follow the standards of the day. Otherwise how the hell do you buy harddrives for them? An IBM custom harddrive factory? Thick about it. I provided you the link that says those machines came with SCSI in them. Unless NASA handbuilt your rig to send man to the moon, you have SCSI. You're just blowing smoke because the gig is up.
 
Last edited:
You must log in or register to reply here.
Back
Top