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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!caen!nic.umass.edu!hagan
- From: hagan@titan.ucc.umass.edu (Craig I. Hagan)
- Subject: Re: Eteq Motherboard Advanced Chipset Setup Question
- In-Reply-To: shim@magnus.acs.ohio-state.edu's message of Mon, 14 Sep 1992 03:03:37 GMT
- Message-ID: <HAGAN.92Sep14005511@titan.ucc.umass.edu>
- Sender: usenet@nic.umass.edu (USENET News System)
- Organization: University Computing Services
- References: <1992Sep14.030337.5139@magnus.acs.ohio-state.edu>
- Date: Mon, 14 Sep 1992 05:55:11 GMT
- Lines: 25
-
- well, lets take a look here:
-
- 33mhz / 6 = 5.5mhz
- 33mhz / 4 = 8.25mhz
- 33mhz / 3 = 11mhz (many computers have this one)
- 33mhz / 2 = 16.5mhz
-
- This looks very much like the speeds for your isa bus.
- the first one is provided for compatibility with the original
- PC/AT (which was a 6mhz box). A lot of stuff works without
- a hitch to 11-12mhz (i run my ISA bus at this speed with
- no problems, unless faster is a problem :) ). The ISA
- bus *can* do 16mhz, i have done it, without problems, except
- that the data would get to my video card faster than it could
- be drawn (its a VERY slow card) causing parts of the screen to
- be left out.
-
- Usually ISA busses are preconfigured/defaulted at ~8mhz. Running
- it faster (like about 12mhz) doesn't normally cause problems
- with today's hardware. I would try out both 12mhz and 16mhz,
- and see which works the best, faster being preferred, just
- dont blame me if that 10 year old serial port blows up.
-
- -- craig
-
-