[tech] (fwd) fs:(Melb) Penitum 200MMX (Socket 7)

David Manchester mustang at ucc.gu.uwa.edu.au
Mon Oct 30 11:35:54 WST 2000


> On Mon, 30 Oct 2000, Nick Bannon wrote:
> 
> > On Mon, Oct 30, 2000 at 02:10:15AM +0800, Grahame Bowland wrote:
> > > Looks pretty good. How does this compare to the equivalent processor from 
> > > CS for $300 with all the trimmings? We could grab one of those and make it 
> > > mermaid, and then use the current mermaid as a console box?

Broken broken broken.
Mermaid's currently in a rack-mount case.
The motherboard is best for a server.
Why?

6 SIMM slots and an HX chipset, which will actually let us cache >64MB
and do parity for us, or ECC if we use parity RAM.

> > Probably simpler to swap some bits and not bother reboxing, etc - the
> > CPU and perhaps two 8MB for two 16MB SIMMs, making mermaid a 96MB
> > P200-MMX and other a 48MB P133/P150. (was mermaid's CPU swapped to get
> > rid of the FPU errors?  Last I remember it was running at 150MHz)

Yes, quite.
The CPU's currently a P133 because of the FPU errors.
Shame, as those P150s are neat as they'll run 2*75, but that
one seems to have suffered when mermaid overheated. *shrug*
Although as is mentioned below by James, the CS ones use DIMMs.

> IIRC, the CS PCs had PC100 SDRAM, which comes in a DIMM. While you might
> be able to use SDRAM in mermaid, depending on the motherboard, it's very
> dodgy to use DIMMs and SIMMs at the same time.

Yeah, that too. Beware that these will probably have PC66 DIMMs
so we want to keep the RAM together... rather than swap it into
mussel/new motherboards.

Grahame - what became of purchasing those CPUs?
Last I heard, we were all set to buy the ones from Craig, so I thought
I'd temper that fervour somewhat with other prices.
Then these P200MMXes came up & no-one's said boo, bar Nick about the
new Celeron machines. 
We've got a meeting tomorrow... are we going to do anything before
then & report back, or are we going to slog it out some more tomorrow
night?

Cheers
/dave


>  
> -- 
> "There's nobody getting rich  |  TRS-80              UCC Fresher Rep
>  writing software that I      |  Email:    trs80(a)ucc.gu.uwa.edu.au
>  know of" - Bill Gates, 1980  |  Web:       http://trs80.ucc.asn.au/
> 
> 


-- 
/ David Manchester <mustang @ ucc.asn.au> (UCC Wheel and Committee person) \
|       If Life hands you lemons today, smile and give thanks.             |
|     Then, when Life isn't looking, give him a quick knee to the groin.   |
\                              That'll learn him.                          /




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