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German SGI O2 600 MHz upgrade successful

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S.C.Sprong

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Dec 23, 2005, 10:58:02 AM12/23/05
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A short notice: today, 23 December, my O2 upgrade arrived, and it has
just successfully passed all diagnostic tests.
603 MHz of quasi-nostalgic goodness, oh my!

See also:

<http://www.in4tec-mbh.com/O2@600/news.html>

Merry Christmas!

scs

Walther Mathieu

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Dec 28, 2005, 5:31:06 AM12/28/05
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Servaas,

thanks a lot for mentioning our precious effort here,
and for posting that link to my site respectively.

Now another 4 people have shown interest in a 600MHz O2 yet.

Since I have some SPROMS on stock + soldering proved to work
I惻l do the next batch as soon as there again are 10 of us.
Feel free to omit the dot-etc from my address and contact me.

Caveat: it _must_ be a HD-BGA 304 O2 CPU you own.
If in doubt have a look at the site mentioned above.

I thought that only 300MHz/350MHz R5000 (R5271) CPUs were suited,
but I had to learn recently that there may be O2 R5k HDBGA 304s
below that as well, i. e. 180 or 200MHz. Correct me if I惴 wrong.

If you want to check: your R5k CPU module ought to be L-shaped,
and if you count 304 pads on the PCB below the CPU, voila!
You may double speed and cut consumption for about 300 Euro.

Please notice that I惴 located in Europe (Germany, to be precise),
there are better ways to have this done in the US eventually
(go have a look at some hardware threads at nekochan.net).

And thank you very much, Joe, for the precious upgrade recipe!

Cheers

Walther

Walther Mathieu

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Jan 8, 2006, 5:49:48 PM1/8/06
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S.C.Sprong wrote:
> 603 MHz of quasi-nostalgic goodness, oh my!
>
> See also:
>
> <http://www.in4tec-mbh.com/O2@600/news.html>

Another batch to be processed soon... dingdingding!

Erik Hofman

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Jan 12, 2006, 12:09:24 PM1/12/06
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Be prepared to work without your CPU module for about 8 months. Mine
still doesn't seem to work properly (at least I haven't had any
notification).

Erik

Walther Mathieu

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Jan 13, 2006, 6:41:20 AM1/13/06
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Erik,

hat was the very first time... and the hunt for simple things like
out-of-production cache RAMs or Xilinx SPROMs srewed things up.

I惴 sorry for that. Now that everything (parts, prommer etc.)
are at hand it won愒 take _that_ long - but estimated 6-8 weeks.

Since I got me some spare modules there is no need to send them.
I惴 going to offer some exchange-when-available service,
that will leave one only few days without CPU.

As soon as I have worked this out you惻l find it on my site.

Walther

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