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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Hardware Hacking > Upgrading Performa 575 to PPC

Upgrading Performa 575 to PPC
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Mac Elite
Join Date: Mar 2000
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Aug 13, 2000, 11:35 PM
 
We have an old Performa 575 laying around (33 MHz, 36 MB RAM, 250 MB HD, etc.) and were wondering if there was a way to upgrade it to a 601 or 603 PPC AND upgrade the HD to somewhere around 3-5 GB. It would be nice to do it relatively inexpensively and just have another PPC to do word processing, internet, etc. while our iMacs are in use or even to use at another location. I know it has a cache upgrade slot and came ready for a PPC upgrade, the question is where to find one and how much it would cost. As for the HD, does anyone know if it is SCSI or another type. I'm almost positive its not IDE (I think the 630 was the first to sport an IDE).
Per Square Mile | A blog about density
     
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Aug 14, 2000, 01:56 AM
 
I haven't heard of any specific ones for this series of computer but there maybe some around somewhere. The thing is I don't think it would be very cost effective. Even around second hand mac places they'll ask about $100-150 for such an upgrade and I suppose it'd probably only take you to 100mhz 603. Then you have to fork out for the hard drive. The upgrade might not even give too much of a speed increase depending on the cards architecture as some early PPC boards were a nightmare. Maybe you should sell the performa and buy another Gen. 1 iMac like a Rev. B for $550-600 instead.
Pete C. (PB12" 1.5Ghz 160GB hdd, 1.25GB RAM, OS X 10.4.11)
     
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Aug 14, 2000, 10:40 PM
 
I did find some prices for an upgrade and it was outrageous!! $500 some odd dollars to take me to a 603 75 MHz! I think a rev B would be a much better choice. Thanks.
Per Square Mile | A blog about density
     
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Aug 15, 2000, 03:32 PM
 
Or, just get an older powermac and upgrade it to a G3.

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You don't like Macs? Good, more for me.
     
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Aug 17, 2000, 12:02 PM
 
Speaking of old computers... I have an old 636cd. Where could I go to find out what it would be worth if I sold it. It has 250MB HD, 16MB ram, 66mhz chip (I think), 15" screen, apple Laser-writer priter, an Apple Image-writer printer, and a diamond 56k modem.

Is there a place I can go to findout how much all that old crap is worth? It all works and everything.

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Just remember... If the world didn't suck, we'd all fall off!

[This message has been edited by blizaine (edited 08-17-2000).]
     
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Aug 17, 2000, 12:32 PM
 
blizaine, there is an URL posted in the BUY/SELL forum somewhere that will take you to a site that gives ballpark figures for value of nearly any Mac...

i forget just where that URL is posted, in which thread in the BUY/SELL forum... have a look...
     
Mr.Squeakyboboball
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Aug 30, 2000, 02:17 PM
 
I used to own one of these machines (actually, it started life as a Performa 550). When Apple settled the lawsuit over PowerPC upgrades for these machines, I scrimped and saved and somehow came up with the $599 to get it. The upgrade included a Performa 575 logic board, and a PowerPC upgrade card that fit between the 68040 chip and the motherboard (the 040 then got placed in a special socket on the card). This made it a 66 MHz 601-based computer with 256K level 2 cache, slightly faster than my 100 MHz cacheless PowerBook Duo 2300 (stupid cacheless Duo...grrrr...).

It was probably a mistake on my part (this was 1997, should have waited until the iMac came out) but it definitely made an improvement for the machine.

Unfortunately, I'm guessing very, very few of these upgrades were ever taken advantage of by users so there are probably almost none available. Everybody that did get one is most likely not going to want to get rid of it, and when they do it will probably just be tossed out instead of sold or given away. (Mine stayed with my ex-girlfriend, and we recently fixed it up slightly to give to a mutual friend with no computer.) Your best bet for locating the card is through a user group (try the national ones like AMUG) or a remarketer like Shreve or Sun. In all honesty, though, the effort is probably better spend on something like a used 7200 on eBay. Good luck in your search...

(BTW, you're right; it is a SCSI hard drive, although the memory can't be upgraded beyond 36 MB.)
     
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Aug 30, 2000, 04:41 PM
 
if you want to find out the current market value for the computer, go to www.everymac.com and check it out, they list, uh, every mac and its specs and prices and all. as for the printer and the rest, try ebay.
-LUAP
UND KEINE EIER
     
   
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