Welcome to the MacNN Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Desktops > Dual-Processor Upgrades for B&W PowerMacs?

Dual-Processor Upgrades for B&W PowerMacs?
Thread Tools
rambo47
Mac Elite
Join Date: Apr 2000
Location: Denville, NJ.
Status: Offline
Reply With Quote
Sep 7, 2002, 03:53 PM
 
Where are they? This is the first PowerMac with a 100 MHz system bus and to my mind the best cantidate for upgrades. Modern enough to get great performance from a dual processor, unlike the beige boxes hobbled with system buses between 40MHz and 50MHz (I know, a few like the 9600 had 100 MHz buses). And widely distrubuted - one of the best-selling models ever for Apple. They're new enough that many are still the main machines of their owners, but old enough that folks would jump at the chance to upgrade and breathe new life into them. With OS X requiring more and more processor horsepower with every update the B&W's are still capable but falling off the pace. I upgraded mine from the G3 450 to Sonnet's G4 500 and noticed a nice bump. AltiVec rocks in Photoshop! I just feel the architecture of the B&W is the sweet spot for upgrading to reap maximum benefit, especially with dual processors. Am I nuts, just sounding off because I have one? Dunno. I think dual processor upgrades would sell very well for the B&W.
     
powerlogix
Fresh-Faced Recruit
Join Date: Jun 2002
Status: Offline
Reply With Quote
Sep 7, 2002, 07:38 PM
 
The bridge chip on the B&W is the issue, it's an MPC106 and there is a fatal flaw when using a G4 745x processor with the 106. We should know...we discovered the bug last year, otherwise we'd have been selling a 733-800 chip in B&W last July 2001. Workaround: possible but lengthy engineering exercise.

FYI: 9600 was 50mhz bus.

Originally posted by rambo47:
Where are they? This is the first PowerMac with a 100 MHz system bus and to my mind the best cantidate for upgrades. Modern enough to get great performance from a dual processor, unlike the beige boxes hobbled with system buses between 40MHz and 50MHz (I know, a few like the 9600 had 100 MHz buses). And widely distrubuted - one of the best-selling models ever for Apple. They're new enough that many are still the main machines of their owners, but old enough that folks would jump at the chance to upgrade and breathe new life into them. With OS X requiring more and more processor horsepower with every update the B&W's are still capable but falling off the pace. I upgraded mine from the G3 450 to Sonnet's G4 500 and noticed a nice bump. AltiVec rocks in Photoshop! I just feel the architecture of the B&W is the sweet spot for upgrading to reap maximum benefit, especially with dual processors. Am I nuts, just sounding off because I have one? Dunno. I think dual processor upgrades would sell very well for the B&W.
     
pathogen
Mac Elite
Join Date: May 2000
Location: studio or in the backyard
Status: Offline
Reply With Quote
Sep 7, 2002, 11:38 PM
 
lousy bridge chip. grrr.
When you were young and your heart was an open book, you used to say "live and let live."
But if this ever changing world, in which we live in, makes you give in and cry, say "live and let die."
     
catzilla1228
Fresh-Faced Recruit
Join Date: Sep 2002
Location: Rhode Island
Status: Offline
Reply With Quote
Sep 8, 2002, 12:42 AM
 
The lack of an AGP slot is kind of a drag as well.
     
Superchicken
Addicted to MacNN
Join Date: Mar 2002
Location: Winnipeg
Status: Offline
Reply With Quote
Sep 8, 2002, 01:08 AM
 
but the case is soo nice

The B&W were great comps, unfortunately there's only so much you can upgrade them and with the arising importance of AGP graphics cards, I think unfortunately your up a creek without a graphite paddle.
I would preffer a B&W but... unfortunately I can't justify paying for one used other than for fun
I acctually coulda bought one today but the monitor and comp would have been over a thousand dollars Canadian which was rediculous.
     
rambo47  (op)
Mac Elite
Join Date: Apr 2000
Location: Denville, NJ.
Status: Offline
Reply With Quote
Sep 8, 2002, 11:06 AM
 
Unfortunately the lack of AGP in the B&W kinda dooms it, with AGP being the minimum requirement to maximize Jaguar's performance. There are hacks that supposedly allow Quartz Extreme to function in unsupported computers, but that's never as good as native functionallity.

As far as the system bus goes on the 9600's I was confusing the cache speed with system bus speed. Had I read more carefully I would have seen the bus speed is indeed 50 MHz. The 100 MHz bus did debut with the B&W PowerMac, my immortal beloved. Even though I'm now using a Dual-Gig PowerMac now I plan to keep my B&W to run [email protected] and [email protected] for MacNN. A G4 500 MHz processor and 1 GB RAM should to just fine for distributed computing.
     
powerlogix
Fresh-Faced Recruit
Join Date: Jun 2002
Status: Offline
Reply With Quote
Sep 8, 2002, 02:23 PM
 
We'll *will* have something faster for B&W shortly, however.
     
tooki
Admin Emeritus
Join Date: Oct 1999
Location: Zurich, Switzerland
Status: Offline
Reply With Quote
Sep 8, 2002, 02:37 PM
 
The problem with processor upgrades, IMHO, is that the money is usually better saved for the purchase of a new machine. For example: a 1GHz G4 upgrade card for an AGP G4 (Sonnet Encore / ST G4 1GHz 256K1:1 2M 2:1 Power Mac Graphite G4) is about $700. Well, $700 is already almost half the cost of a brand-new dual-867MHz G4 with a decent size HD and RAM, as well as more expansion slots, and a much faster graphics card. I'd just as soon save my $700 for that!

The only time I see CPU upgrades as worthwhile is when a machine upgrade would leave you will all sorts of orphaned peripherals (the most memorable such transition being the upgrade from a beige G3 or earlier to a blue G3 or later).

tooki
     
Superchicken
Addicted to MacNN
Join Date: Mar 2002
Location: Winnipeg
Status: Offline
Reply With Quote
Sep 8, 2002, 03:58 PM
 
But at the same time. Sometimes the computer you'd be buying would be almost the exact same, and you wouldn't be using your old one any more, so you might get more for your money, BUT you wouldn't want all that stuff. Some people put a lot into their machines, and if it wasn't for the whole AGP thing, I'd have upgraded mine to an iForce already.
     
bartman00
Dedicated MacNNer
Join Date: Mar 2002
Location: columbus
Status: Offline
Reply With Quote
Sep 8, 2002, 09:16 PM
 
Huge props to Powerlogix for monitoring and posting in Mac forums! I think this is the #1 best way to get your product purchaced!


Bart
Powermac Sawtooth w/ 1.3ghz overclocked GigaDesigns 1ghz cpu
iBook G3-900
     
pathogen
Mac Elite
Join Date: May 2000
Location: studio or in the backyard
Status: Offline
Reply With Quote
Sep 11, 2002, 12:30 AM
 
I for one will get an upgrade for my B&W G3 when something faster than 550 comes out. Right now I have a 500mhz G3 Zif, and it was one of the best investments I made 2 years ago. If I can come close to doubling my processor speed, or even just a 50% boost, this mac does not need to be replaced for OS X. It's quite fine with Jaguar right now, actually.
When you were young and your heart was an open book, you used to say "live and let live."
But if this ever changing world, in which we live in, makes you give in and cry, say "live and let die."
     
   
Thread Tools
 
Forum Links
Forum Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Top
Privacy Policy
All times are GMT -4. The time now is 11:29 PM.
All contents of these forums © 1995-2017 MacNN. All rights reserved.
Branding + Design: www.gesamtbild.com
vBulletin v.3.8.8 © 2000-2017, Jelsoft Enterprises Ltd.,