| From: | Simon Shead |
| Date: | 8 Jul 2001 at 09:14:28 |
| Subject: | Re: Yet more tower probs |
On 08-Jul-01, Jon Barker wrote:
> Hello Mario
>
> On 07-Jul-01, you wrote:
>
>> Cao8-) Jon
>
>> On 06-Jul-01, you wrote:
>
>> ->> Yes, but I'm pretty sure the PPC boards have jumpers to set for
>> ->> kind of thing. At least my Cyberstorm does. :)
>> ->
>> -> So don't forget, or fried 060 will break your heart :-) How much is
>> -> a 060?
>
>> Bppc don't nave jumpers, i think that it handles 040/060 voltage
>> itself.
>
> There are other important changes to be made to the board. Timing for
> example. On the MC68040, outputs are driven off the falling edge of PCLK.
> The MC68060 drives everything off the rising edge of CLK. There must be
> some way of converting the boards from 040 to 060. I would suspect this
> is done at manufacture, when the cpu to be used is known.
For everyone interested in overclocking PPC and 040 -> 060 conversions, check
out http://www.starnet.com.au/davem/overclock/csppc.html.
I think the original post may have been referring to a different board than
the CyberstormPPC, but the information here is valid, and should put and end
to all this "I think..." posting.
The changes aren't particularly hard if you can do fine soldering. All
the information on Dave's excellent pages are actual successful conversions
he has done!
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