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From: skip@ubvax.UUCP (Stayton D Addison Jr)
Newsgroups: net.micro.pc
Subject: Re: 10Mhz Clones
Message-ID: <559@ubvax.UUCP>
Date: Tue, 30-Sep-86 22:44:41 EDT
Article-I.D.: ubvax.559
Posted: Tue Sep 30 22:44:41 1986
Date-Received: Sat, 4-Oct-86 05:48:44 EDT
References: <5100136@uiucdcsb>
Reply-To: skip@ubvax.UUCP (Stayton D Addison Jr)
Organization: Ungermann-Bass, Inc., Santa Clara, Ca.
Lines: 18

In article <5100136@uiucdcsb> schmitz@uiucdcsb.cs.uiuc.edu writes:
>
>
>Can anyone help with this question:
>
>I'm thinking of buying a 10Mhz AT clone.  Lots of expansion cards on the
>market have a phrase in their advertisements like "works on 6Mz or 8Mhz AT
>compatibles".  Are they leaving off the "10Mhz" just because such 
> ...

IBM sells two AT types.  One is 6 Mhz, including the I/O channel, the other
is 8 Mhz, including the I/O channel.  Many of the "10 MHz AT clones" run the
processor at 10 MHz and the I/O channel at 6 MHz -- to be compatible with IBM.
What the expansion board would see would be 6 MHz in that case.

Of course, the expansion board companies may just not be willing to step up
to the 10MHz speed, given that *IBM* hasn't come out with anything faster
than 8 MHz.