Re: [q] 10/100

[Christopher Wood]

Jeff Walther wrote:

BTW, are the 10/100 cards still going cheap on Ebay?   Asante was 
clearing them out on Ebay for a short time, but they are out of them 
now.  Is someone else selling them?

Jeff Walther

Jeff, they were as of last week. Dutch auctions.
Chris Wood
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Re: [q] Centris hardware problem

[Andrew W. Hill]

Volt were a mere 11 Volts, respectively. Would this be enough to explain
the hardware failure, and if yes, what am I supposed to do? There does not
seem to be a possibility of adjustment on the PS. If someone knows there is
something adjustable inside the brick, I'll open it up; 220V is a voltage I
can handle. Any help would be greatly appreciated, as I like this elegant
machine very much.
I don't think it'll deathchime based on that.  It's a possibility I 
guess.  It doesn't seem that you switched the logic boards yet.  I 
think this is more likely to be the problem.  I've just parted out a 
C610, so if you want a board, send me a note offlist.
Andrew

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Re: [q] 10/100

[Jeff Walther]

From: "Powermac" <[EMAIL PROTECTED]>
Subject: Re: [q] 10/100
Date: Mon, 19 Jul 2004 17:41:26 -0400
- Original Message -
From: "Christopher Wood" <[EMAIL PROTECTED]>
To: "Quadlist" <[EMAIL PROTECTED]>
Sent: Monday, July 19, 2004 2:58 PM
Subject: Re: [q] 10/100

 Yes, the Asante 10/100 cards are going cheap on eBay. My only gripe is
 10/100 cards in any Nubus Mac either 68k or PPC still get jack for
 network through-put. Any pci Mac including a even  a 7200/75 with its
 onboard 10BaseT will smoke a Nubus Mac with a 10/100 card. At least
 thats always been my experience.
 Chris Wood
Have you done any real benchmarks?
Nubus slots up to the 840av are 32bit 10Mhz for 40MB/sec bandwidth, Nubus 2
on the 840av and the PPC nubus machines should be double that. So from those
numbers the bus should not be a bottleneck (PCI bus is limited to
132Mb/sec). If your using old 200MB scsi hardware I could see the HD being a
bottleneck.
Actually, the 840AV is still 10 MHz for 40 MB/s theoretical maximum 
throughput.  The 840AV only supports 20 MHz for card-to-card 
communications where both cards support 20 MHz and where someone 
actually wrote software support for card-to-card communications.

I don't think anyone ever built any hardware that took advantage of 
that capability.

Communications from card to 840AV and from 840AV to card are still 10 
MHz.  This is documented in the Hardware Developer Notes for the 
840AV from Apple, "Centris_660AV_Quadra_840AV.pdf".

BTW, are the 10/100 cards still going cheap on Ebay?   Asante was 
clearing them out on Ebay for a short time, but they are out of them 
now.  Is someone else selling them?

Jeff Walther
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[q] Centris hardware problem

[Dr.O.M.Betz]

Hi listers,

after a couple of years on the Compact Macs list I decided to join the
Quadlist because of a hard-core problem with a Centris 610. As this is my
first post, I'll introduce myself shortly: I'm  German, using and
collecting Macs since 1988/System 5.0. Mostly online with a G4 Sawtooth via
AirPort and a Draytek wireless router on ISDN, the family with iBooks.

Here is the Centris issue: A machine that had worked flawlessly before in
my son's room network with 44 MB RAM, 1 GB HD and 8xCD-ROM gives the death
chime at startup. I started looking for a faulty component by subsequently
removing the HD, CD-ROM drive, NuBus Adapter, floppy, non-soldered RAM,
even the monitor, and restarting after each change: no luck, after the
startup chord no video, but the death chime. The PRAM batt had 3.5 Volts,
changed it all the same, no dice. The only thing that did not meet specs
was PS output: while the 5V rating was correct, the should-be + and - 12
Volt were a mere 11 Volts, respectively. Would this be enough to explain
the hardware failure, and if yes, what am I supposed to do? There does not
seem to be a possibility of adjustment on the PS. If someone knows there is
something adjustable inside the brick, I'll open it up; 220V is a voltage I
can handle. Any help would be greatly appreciated, as I like this elegant
machine very much.

Chers, OM

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[q] 040 PDS PPC Upgrades

[D. C. Onofrey.]

Hello all:

Apple's spec database states that a Quadra 950 upgraded to PPC is capable
of running MacOS 8.5.  Elsewhere, I've read that one must install an
enabler from Sonnet to achieve that result.  Does anyone have any hard
evidence or experience that proves exactly what version(s) of the MacOS
can be installed on a PPC-upgraded Quadra 950, with or without "enablers"?

Thanks much!

Daniel Onofrey





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