"kony" <spam@spam.com> wrote in message
news:skhjf1lkvs37km87aonaosda5egcea7qqb@4ax.com...
> On Tue, 09 Aug 2005 23:14:26 GMT, "Donald McTrevor"
> <me@privacy.net> wrote:
>
>
> >Well I did find the results surprising so maybe they
> >are wromg, my experience so far is that the K6 is very slow!!
>
> It is very slow. However, it's still faster than the CPU it
> replaced IF it's running properly. I suspect you have
> motherboard settings wrong, and that is why I suggested
> checking the operational parameters with CPU-Z.
>
>
> >
> >I might have got the settings wrong, either way I had problems
> >I also set some jumpers wrong the first time i tried, which
> >may have damaged the chip? Maybe I was sold a duff chip?
>
> Setting the wrong multiplier or FSB will not damage the
> chip, however if it were operating beyond what it can do
> stabily, it could corrupt data, the realtime running state
> of the OS and/or anything subsequently written to any
> drive(s). Providing you had the voltage at correct (2.2 or
> 2.4V) setting then the CPU should be fine.
>
> Since your CPU is a 300MHz version, you might try Google
> searching for it's specific model code- there were a few
> "rare" 300MHz versions of the K6-2 that had cache problems
> and as a result, AMD spec'd them to only run at 66MHz FSB,
> no faster than that. It was an initial confusion in the
> industry at the time because it had been expected that all
> 300MHz parts could run at 3 x 100MHz FSB, and later they did
> fix the problem so there were subsequent 300MHz versions
> that were spec'd for 3 x 100MHz FSB instead of 4.5 x 66MHz
> FSB.
Maybe, I did set it at 66mhz before but that crashed however,
I may well have had other settings wrong possibly. It is also
possible they were due to bad files on my hard disk caused by
previous crashes
I have made some diagrams of the jumper settings which should
help to avoid making errors.
Actually I just found this
http://www.tomshardware.com/cpu/19990121/
Which confirms what you said above and I have just had a look
at the marking on the chip and it is indeed an :-
AMD-K6-2/300AFR-66
2.2V CORE / 3.3V I/O
A 98500PM
m © 1996 AMD
It was described as AMD K6-II 300MHz socket 7 processor somewhat
misleadingly in the item description, but it did give a fuller description
later on so I can't complain, especially as it only cost £1
>
>
> >I can't claim this because I ran it with bad settings myself
> >first time. However it sill seems to work.
> >I cant see how I could damage it so that it would run slowly though.
>
> Setting the multiplier too low would cause it. If you had
> been doing anything in the bios, perhaps you accidentally
> disabled the L2 cache?
Never touched the BIOS but I could easilly have made some
errors setting the fiddlely jumpers and I did make at least two
errors which I found so it would not be a great surprise if I made more.
I will give it another 'go' later and hopefully it will be OK.
There is another one not a 66AFR for sale for £1 (£2 inc p&p).
http://cgi.ebay.co.uk/CPU-AMD-K6-2-3...QQcmdZViewItem
However I may be able to pick up a faster one to use 6X75Mhz.
There difference between the two chips is not much
http://www.cpu-world.com/cgi-bin/Com...ACTION=Compare
Actually I have been thinking that I can try that X2=X6 so I could go
50Mhz X 6 = 300Mhx or 66Mhx X 6 = 400Mhz!!!! but I think that will
be too high.
I will try again a bit later.