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cowcow888
10-29-2000, 10:58 AM
I just wondering, what is the differnce between UDMA66 IDE cables and normal IDE cables, is there any pin out difference or different layout
looking forward to the reply, any help would be appreiciate

Paleo Pete
10-29-2000, 11:41 AM
I think they use the same cables, the difference is in the circuitry of the drive, not in the cable. UDMA 66 is simply a faster data transfer rate.

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Charles Kozierok
10-29-2000, 02:46 PM
Sorry, Pete, I rarely see it, but you're wrong this time. http://www.PCGuide.com/ubb/smile.gif UDMA 66 and 100 use an 80-conductor 40-pin cable. The connectors are the same size, but 40 extra ground wires are added.
You can tell the difference easily. First, there are 80 thinner wires, you can count them if you want. But more easily, 80-conductor cables have one black connector, one gray and one blue.
There'll be an update on the site soon with pictures. It's taking me forever to get it done. http://www.PCGuide.com/ubb/smile.gif

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Charles M. Kozierok
Webslave, The PC Guide (http://www.PCGuide.com)
Comprehensive PC Reference, Troubleshooting, Optimization and Buyer's Guides...
Note: Please reply to my forum postings here on the forums. Thanks.

Paleo Pete
10-29-2000, 09:29 PM
Thanks Charles, didn't know that. Never seen the 80 pin cable myself, then again I'm still tinkering with 120 MB drives in 386 machines...lol

Guess you learn something every day. http://www.PCGuide.com/ubb/biggrin.gif

http://www.geocities.com/him_voxdei/image/smileysex5.gif


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If you had everything...Where would you put it?

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[This message has been edited by Paleo Pete (edited 10-29-2000).]

Charles Kozierok
10-29-2000, 09:33 PM
If you go to one of the cable sites like www.cablemakers.com (http://www.cablemakers.com) you can see a pic. http://www.PCGuide.com/ubb/smile.gif

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Charles M. Kozierok
Webslave, The PC Guide (http://www.PCGuide.com)
Comprehensive PC Reference, Troubleshooting, Optimization and Buyer's Guides...
Note: Please reply to my forum postings here on the forums. Thanks.

cowcow888
10-31-2000, 01:26 AM
so do u mean, if I added the connect extra ground of 40 pin will change the normal ide cable to udma66 cable

Jerkymom
10-31-2000, 02:43 AM
I don't think adding 40 extra ground wires to a regular IDE cable is practically feasible, assuming it could even be done. Wouldn't the connector be much too wide to fit then? You just have to buy the UDMA66 80-conductor IDE cable ready-made. Unless your hard drive supports UDMA66, the 80-wire cable isn't necessary. You can use a normal IDE cable with a UDMA66 drive, but you won't get the performance boost.

Hope this helps! http://www.PCGuide.com/ubb/smile.gif
Kim

Charles Kozierok
11-01-2000, 09:28 AM
The extra 40 ground wires are between the 40 signal wires, which is the entire point. I don't think you could do that yourself, and the 80-conductor cable is only 5 bucks or something anyway...

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Charles M. Kozierok
Webslave, The PC Guide (http://www.PCGuide.com)
Comprehensive PC Reference, Troubleshooting, Optimization and Buyer's Guides...
Note: Please reply to my forum postings here on the forums. Thanks.