> -----Original Message-----
> From: Jon Elson [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, 30 May 2001 15:09
> To: Protel EDA Forum
> Subject: Re: [PEDA] How big is big?
>
>
> Thomas wrote:
>
> > I've noticed a few people complaining of crashes and
> glitches when using
> > 99se for large designs.
> > I'm running 99se sp6 on an AMD 750MHz with 128Mb of RAM and
> have not had a
> > single problem since changing from win98 to winME (~4 months). I've
> > extensively customised the Protel environment too.
> > A couple of typically large PCBs I've been working on are
> as follows:
> >
> > 140mm x 90mm, 393 holes, 140 components
> > 430mm x 130mm, 698 holes, 66 components
> >
> > The largest .ddb file I have is about 20MB (compacted).
> >
> > I thought these were large. So how big does a design have
> to be before I
> > start noticing problems?
>
> One of my typical boards is 11 x 7" (280 x 180 mm) 1400
> holes, about 800
> components,
> many of them are 2-lead passives, however. These are usually
> 4 layer, but
> some are 6.
> I've been using Win 95, previously 64, but now 128 MB, 133 MHz pentium
> classic,
> and rarely have any trouble. I hate to change anything when it works!
>
> Jon
>
I take it that you don't do on-line DRC or autorouting, then??
Cheers,
MvdW
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