News Group Posts

ATA66 ide

ATA66 aimed for speed by packing 80 wires into a cable. The extra wires were not for data - they were grounding wires designed to reduce crosstalk at the new higher speed. As the visible pinouts and the size of the cable were the same as the older ATA33, it was easy to confuse them. One clue was that ATA66 cables came with colored connectors - blue, black, and gray, while the older cables had one color for all three connections.

If you have one of these still, remember that the blue end of the cable goes to the system board and the black goes to the master drive.

Newsgroups: comp.unix.sco.misc
From: bill@wjv.com.REMOVEME (Bill Vermillion)
Subject: Re: Adding an IDE drive.
Message-ID: <Fq16u6.BrD@wjv.com.REMOVEME> 
Date: Wed, 16 Feb 2000 16:22:54 GMT

In article <imsq4.13638$%M5.297255@bgtnsc06-news.ops.worldnet.att.net>,
TerryM <nospam.gmtsa@nospam.wt.net> wrote:
>
>"Jean-Pierre Radley" <jpr@jpr.com> wrote in message
>news:20000214185351.E3132@jpradley.jpr.com...
>> A client running OSR 5.0.5 plugged in a second IDE hard drive (the BIOS
>> sees it, as a secondary slave device).

>> All attempts to add it to the kernel just hang:
>>
>> 'mkdev hd', and selecting 'Add an IDE drive', hangs.
>> 'mkdev hd 1 1' also hangs.

>> Running ps on another screen shows /etc/ideMAP running.

>is this a new drive? If so, you might be running into a
>compatibility problem with the drives. Most of the latest IDE
>drives are now ATA66 drives. The default setting in the drive
>firmware is to run as an ATA66 drive, but if the motherboard does
>not support the ATA66, or the other drive is a 33mhz drive, then
>you could be running into a small compatibility issue.

And the ATA66 drive I've worked with - Maxtor Diamond - 7200 RPM -
all had a special cable which the documents said MUST be used.
I didn't quibble and just changed the cable - which was included.




-- 
Bill Vermillion   bv @ wjv.com 

Comments?

More Articles by Tony Lawrence

Jump to Comments

Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them. I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. I also may own stock in companies mentioned here. If you have any question, please do feel free to contact me.

Specific links that take you to pages that allow you to purchase the item I reviewed are very likely to pay me a commission. Many of the books I review were given to me by the publishers specifically for the purpose of writing a review. These gifts and referral fees do not affect my opinions; I often give bad reviews anyway.

We use Google third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.