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    7200/75 Sound problem

    If its the sound chip is bad, are there any PCI sound cards that are compatible with early power macs/system 7? The current sound chip is a Crystal, not sure of the model number off the top of my head
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    7200/75 Sound problem

    Also, wondering if the PSU has an issue and there's a wrong voltage- I don't have a multimeter right now and i'm not even sure what voltages are on what lines- the main connector looks like a regular ATX connector?
  3. G

    7200/75 Sound problem

    I washed with distilled water and let dry, but still have the same issue. What exact type of capacitors would I need for this board?  I see three different types: - f2 47u 16v -d4 100u 6v -10 16S 5B6 What does the first number mean? And the third type of capacitor is small one, and has...
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    7200/75 Sound problem

    I just picked up a 7200/75, all of the sounds including the startup sound play at double speed- anyone know what could cause this? Motherboard/capacitors looks in good shape, everything is original except for RAM was upgraded from 8 MB to 16 MB PRAM battery is currently still original
  5. G

    475/605 motherboard in 550

    Is there any difference between the 550 and 575 models besides the motherboard?
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    475/605 motherboard in 550

    The 550 can't take the 580 or 630 board because they use IDE instead of SCSI, correct? Or do those boards support SCSI as well as IDE?
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    475/605 motherboard in 550

    The 475 and 605 can be upgraded to a 68040 33 MHz (or possibly the 40 MHz???) Is it possible to install the 475 or 605 motherboard in the 550 all-in-one? This http://lowendmac.com/1993/mac-lc-550-performa-550/ says it's possible, but online I don't see any slot connector on the 475/605...
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    Macintosh 550 motherboard capacitors

    I'm thinking about having all the capacitors replaced. I was able to replace the battery. I replaced the 8mb RAM stick with a 32mb, and added the co-processor, but now I get a "type 1" error, so I'll have to figure out which part is causing the issue.
  9. G

    Macintosh 550 motherboard capacitors

    Hello, Picked up a Performa 550 recently, I was told the capacitors have been replaced however there appears to be one that leaked or is leaking. Do these capacitors look like replacements or original? http://imgur.com/Faqqsyg Also, how do you remove the "cage" that keeps the CMOS battery inside?
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