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kryceks

macrumors newbie
Original poster
Mar 11, 2023
5
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Got this M5521 Indigo G3 off someone locally, they told me the PRAM battery just needed to be replaced but it worked otherwise. provided me with what i assume are original install discs too (8.5.1, like a mustard yellow, both install and restore discs). got a new battery and replaced it, and heres where I'm starting to lose it a little. it chimes when i power it on, stays on a black screen for about 30 seconds, goes white for a few then back to black. its only after a few minutes i see the? file icon flashing. when i first turned it on, it immediately went to the flashing ? icon. every time after it did/does what i described.


1 learned the hard way that the disc drive (slot loading) is shot. tried putting the disc in and it required a degree of force it shouldn't have. made some gnarly noises, so i shut it down and got the disc out with two bent plastic cards. purchased a veloCD firewire disc reader on ebay. it works fine as far as i can tell, except when plugged in it still won't boot to the disc. ive reset the NVRAM and PRAM in open firmware also. when i press option to see boot options, nothing shows up. i assume that whoever owned it (not the guy who sold it to me, it was his retired friends) wiped it first. Its unclear whether the hard drive is in good shape. the only other thing I've noticed is that right after the startup chime, the caps lock key on the keyboard (original) lights up for a few seconds and then stops. not sure if that would be considered "one long beep" in terms of failing to post.


so now I'm at a loss - i found a new slot loading disc drive online, along with a hard drive and new memory should i need it. before i take the plunge and start dumping more money into this, is there anything im missing? i consider myself a novice with older apple products, but im well familiar with repairing newer models.


tl;dr this G3 is infuriating and haunted, which is fitting as i got it from a funeral home. i posted some pictures of the machine and some innards, along with the model and SN. thank you to whoever can point me in the right direction!

30DF4CF1-6B3E-4053-924D-26B4A599B9C4.jpeg
AA1DFBEB-B3BE-4B4F-A68A-92FAF09ED729.jpeg
EA26369E-99ED-4F70-A224-78C6FFDB9C73.jpeg
635CA626-6E58-4FB7-B1B1-70E152816B67.jpeg
 
That's likely the 1999 original slot loading iMac that lacks FW?


Not all of these systems would invoke multi-boot via holding the option key at boot. It may lack multi-boot altogether, but you can test this via holding command+OPT+O+F at boot time and boot into Open Firmware.

Then try and invoke multi-boot by just typing multi-boot at the prompt.

It's not uncommon for these old CTR's and their analog boards to take time to warm up.


Likely the ATA HD is completely dead, also not uncommon for Macs of this age. Not all USB CD ROM drives are going to be bootable on old iMacs. Sometimes an older USB flash drive will work if you format it proper and install Mac OS 9 to it. It may spend a long time at the blinking ? but will eventually boot from the flash drive as USB booting was never officially supported on PowerPC, but they will get there when not valid HD is found to boot from.
 
That's likely the 1999 original slot loading iMac that lacks FW?


No, that's the 2001 model judging by the underside information:

aa1dfbeb-b3be-4b4f-a68a-92faf09ed729-jpeg.2172212


It definitely has FireWire - it's listed at the bottom of the label among the specs. Also, how could the OP have connected the FireWire CD-RW drive to the iMac if it didn't have FW? ;)

purchased a veloCD firewire disc reader on ebay. it works fine as far as i can tell, except when plugged in it still won't boot to the disc.

Likely the ATA HD is completely dead, also not uncommon for Macs of this age.

Agreed. The unit in my iMac G3 was a write off. I replaced it with an SSD.

Not all USB CD ROM drives are going to be bootable on old iMacs. Sometimes an older USB flash drive will work if you format it proper and install Mac OS 9 to it.

I've been able to boot from any flash drive and install OS X on my iMac. :)

It may spend a long time at the blinking ? but will eventually boot from the flash drive as USB booting was never officially supported on PowerPC, but they will get there when not valid HD is found to boot from.

USB booting was officially supported on PPC Macs. Apple even provided a firmware update for machines produced before 2000 - which enabled my 1999 iMac to boot from USB and install Tiger by simply holding down Option once the chime has sounded. ;)
 
No, that's the 2001 model judging by the underside information:

aa1dfbeb-b3be-4b4f-a68a-92faf09ed729-jpeg.2172212


It definitely has FireWire - it's listed at the bottom of the label among the specs. Also, how could the OP have connected the FireWire CD-RW drive to the iMac if it didn't have FW? ;)





Agreed. The unit in my iMac G3 was a write off. I replaced it with an SSD.



I've been able to boot from any flash drive and install OS X on my iMac. :)



USB booting was officially supported on PPC Macs. Apple even provided a firmware update for machines produced before 2000 - which enabled my 1999 iMac to boot from USB and install Tiger by simply holding down Option once the chime has sounded. ;)
i did attempt to boot to USB, a few hours later i all but gave up. at the very least, i have ordered the hard drive and itll be here soon hopefully. is it possible that this 8.5.1 disc the guy gave me didnt even come with this model?
 
is it possible that this 8.5.1 disc the guy gave me didnt even come with this model?

Can you take a photo of the disc and show us please? I don't have much experience with Mac OS versions older than 9 but we'd be able to confirm what kind of disc you have. :)

Do you know how much RAM it has? If it's 512 MB or above, then personally I'd go straight to installing Tiger...
 
It absolutely did not. The serial number confirms it's a 2001 model (YM138xxxxxx = made in week 38 of 2001) and it came with Mac OS 9.1. Don't waste your time with that 8.5.1 disc.
ah, im not surprised. the guy who sold it to me told me the original owner had about a dozen other miscellaneous macs and i doubt it was that organized.

i can also tell you for sure that the ram is mismatched. I found two (matching!) sticks on usedmac where i found the disc drive, so ill just go for those since its $16 and not exactly a dealbreaker. im still tempted to get a new disc drive anyway since the external one i got...well, i know it turns on, but that's about it. the LED is supposed to flicker when reading and its decidedly not. could still be the disc, though.
 
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If you're up for another attempt to boot from USB then you might find my post here of help. It documents my steps to successfully install OS X onto my iMac via USB booting. :)
We need FireWire+USB combo flash drives. Prepare them on any modern machine via USB, then boot from them on any FireWire-equipped Mac. :D I mean, FireWire+USB drive enclosures have been around for ages.
 
If you're up for another attempt to boot from USB then you might find my post here of help. It documents my steps to successfully install OS X onto my iMac via USB booting. :)
unfortunately im left creating the install media from windows 10, but i successfully created 9.2.2 install media using transmac. so far so good, now to see if it'll cooperate.
 
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Excellent news. Fingers crossed! :)
no dice, so far. tried a dmg amd in open firmware, didnt even show up under usb 18/19 as a disk. attempting iso right now im transmac. i did notice that while my flash drive says 16, transmac reads it as 29gb (so, 32) - is it possible that my imac cant see it just on the basis that its actually 32gb? any other time I'd be happy, saves me a couple bucks since i got a flash drive twice as large as what i paid for, but right now it could just be one more roadbump.
 
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no dice, so far. tried a dmg amd in open firmware, didnt even show up under usb 18/19 as a disk. attempting iso right now im transmac. i did notice that while my flash drive says 16, transmac reads it as 29gb (so, 32) - is it possible that my imac cant see it just on the basis that its actually 32gb? any other time I'd be happy, saves me a couple bucks since i got a flash drive twice as large as what i paid for, but right now it could just be one more roadbump.

I can't offer much advice here because I've always created my installers on a Mac. Perhaps others who've done so with Windows can weigh in. I've never succeeded in creating an OS9 USB installer - they've never been recognised at the boot menu.

If you have a Tiger ISO or can download one, I'd suggest trying that route and seeing what happens. You can then install OS9 using Tiger once the latter is set up - which is exactly what I did with my iMac.
 
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I would be very shocked if you were able to create installer media on Windows, particularly as Power Macs only boot from an APM-format disk (with a small few late-2005 exceptions). If you can source a Mac, you'll have better luck, but you'd have a better chance with finagling the Firewire optical drive to work than making bootable PPC installers in Windows.

It appears that your FW drive is CD-only, so if you're trying to throw a DVD in there it ain't gonna see anything. I don't remember if Tiger ever shipped as CDs-- might've only shipped in DVD form-- but if you get yourself a working OS X environment you can then write your installation USB from there.

Jaguar shipped as two CDs, so you might be able to try burning yourself a couple of discs and installing from that.
 
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I'm just here hoping OP succeeds. That thing is really good looking and so many were thrown away back around the early-to-mid 2000s.

I think just burning an OS 9.2.2 CD is the way to go. One disc, fast install, and you get to experience the Mac as it was designed. ISO burners exist in Windows that will get the job done just fine. Use the slowest write speed possible, like x2 or even x1.

You bought a new PATA hard drive for this??
 
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i did notice that while my flash drive says 16, transmac reads it as 29gb (so, 32) - is it possible that my imac cant see it just on the basis that its actually 32gb?
Sorry for getting off-topic, but if the drive reads as 29/32 GB elsewhere too despite being labelled as 16 GB, you should test it using h2testw ASAP to see if it works properly and what its actual capacity is. If the tool reports any errors, it's best to trash the drive.
 
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