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Problem with Mercury Electra SSD in beige MiniTower G3?

macuserman

Well-known member
Me too ;)

Let's hope!

This system has truly tested my patients. When I bought it, I thought it was going to be straightforward — no soldering and no retr0britghtning. Instead a harddrive killed by someone else's porn collection and ATA-bus that behaves like a two-year old.
Hang in there! It wouldn’t hurt to snag a sata card just for kicks as well they are handy to have around and work in lots of setups.

Here’s one on a Power Tower Pro I’m working on.
IMG_3335.jpeg
Works flawlessly with the sata spinning disk I have hooked up on os 9.
 

ktkm

Well-known member
Hang in there! It wouldn’t hurt to snag a sata card just for kicks as well they are handy to have around and work in lots of setups.
Thanks, I will! If everything works out with the 6280M, I might get the strength to pursue another endeavour.
Here’s one on a Power Tower Pro I’m working on.
Nice! Is that the 750 or 604e?
I had a 6280M in my B&W G3 back then.
It’s probably unrelated, but I could never get my PB Pismo to wake up from sleep if I had 9.2.X installed.
 

croissantking

Well-known member
This system has truly tested my patients. When I bought it, I thought it was going to be straightforward
I mean, it is pretty straightforward if you use a PATA hard drive… You could have got a large and quiet 7200RPM drive and saved yourself a lot of trouble.
 

Phipli

Well-known member
T
Yes, but the 8GB rule is just for OS X. Not sure what OS @ktkm has in mind?

For the SSD route I would either:

Spring for a flashed SATA card if you want to run that SSD. I’ve got an Adaptec 1210SA in my Beige G3 with the Rev C ROM and it’s working quite well now.

Or:

Use the onboard IDE bus, and get one of those ‘industrial’ SSDs that Sean of ActionRetro (and maybe others) reviewed some time ago on their YouTube channel with great results.
The 8GB rule is for OS9 as well. Its a ROM Issue.

The reason it is less noticeable on an OS 9 disk is because the OS itself is much smaller. You see, the problem isn't that the boot partition needs to be less than 8GB, that is the solution. The problem is if the OS is beyond the first 8GB of the disk. If you have a 32 GB partition, things will often work for a while, until the drive gets full enough that part of the OS gets re-written to a location more than 8GB into the physical media, at that point... things start going weird.

By putting an 8GB partition at the beginning of the disk, you artificially constrain the location files can be written for that disk, including the System Folder, to the first 8GB.

What you might be thinking of is that the OSX installers were generally smart enough to prevent you from installing onto a partition that could cause issues due to this, but the lack of this feature in the OS9 installer doesn't mean it wasn't still an issue!
 

croissantking

Well-known member
T

The 8GB rule is for OS9 as well. Its a ROM Issue.

The reason it is less noticeable on an OS 9 disk is because the OS itself is much smaller. You see, the problem isn't that the boot partition needs to be less than 8GB, that is the solution. The problem is if the OS is beyond the first 8GB of the disk. If you have a 32 GB partition, things will often work for a while, until the drive gets full enough that part of the OS gets re-written to a location more than 8GB into the physical media, at that point... things start going weird.

By putting an 8GB partition at the beginning of the disk, you artificially constrain the location files can be written for that disk, including the System Folder, to the first 8GB.

What you might be thinking of is that the OSX installers were generally smart enough to prevent you from installing onto a partition that could cause issues due to this, but the lack of this feature in the OS9 installer doesn't mean it wasn't still an issue!
So I’ve heard this before, and I’m sure you’re correct, but my own experience with OS 9 has not been like this. I’m convinced I’ve partitioned large disks (e.g. 80GB ones) into several volumes and booted off a partition that starts well past the 8GB mark. I’ll need to double check this now.
 

Phipli

Well-known member
So I’ve heard this before, and I’m sure you’re correct, but my own experience with OS 9 has not been like this. I’m sure I’ve partitioned large disks (e.g. 80GB ones) into several volumes and booted off a partition that starts well past the 8GB mark.
On the built in bus?
 

cgp

Active member
Firstly, the 8GB IDE/ATA restriction is imposed by the firmware and it applies to booting any OS. Once an OS is running, it's subject to the ATA limitation of 128GB (28-bit addressing of 512byte sectors) so partitions beyond 8GB are accessible.

For Beige G3s (desktop and tower), I've tried various IDE adapters: many don't work at all and others are unstable. These machines are picky with DMA modes and such. But I've had great success with Hyperdisk SSDs. They're cheap, have good capacities and are reliable.

But IMHO, the best solution for these machines is the SIL3112 PCI card - see https://68kmla.org/bb/index.php?thr...3112-flashing-easier-way-using-flashrom.7013/ and https://tinkerdifferent.com/threads...ci-power-mac-impossibru-updated-3-21-23.1494/ and similar. I've hung OWC Electra drives and standard SATA spinners from these cards - they're fast and not subject to the size problems. You need to flash the SeriTek 1S2 firmware to be able to use MacOS and OSX. You'll probably need to flash @dosdude1's patched SeriTek image that works with any flashrom chips. There's other firmware available solely for OSX. And Linux and NetBSD will boot with any old firmware loaded.
 

Phipli

Well-known member
Hhmm .. I have two machines with v3 ROMs that I can vouch for.
The Sonnet instructions (that use the SiriTek firmware) warn that there are issues with some G3s and to contact them, sadly not describing the issue. I have a G3 that... Won't boot from a Sil3112 if there isn't an IDE disk installed at the same time
 

croissantking

Well-known member
I believe so, but I haven't set myself up to face it in a long time, hence asking were you using the internal IDE bus.
I’ve just installed a 20GB IDE hard drive on the internal IDE bus and partitioned it into two 9546MB volumes as follows:

IMG_3487.jpeg

Well, I performed a clean install of Mac OS 9.2.2 onto ‘untitled 2’ and it boots up just fine.

IMG_3489.jpeg

This is why I said I don’t think the 8GB restriction applies to classic Mac OS, just OS X.
 
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cgp

Active member
Hhmm .. I have two machines with v3 ROMs that I can vouch for.
I should have said G3 v2 which is OFW 2.4.
The Sonnet instructions (that use the SiriTek firmware) warn that there are issues with some G3s and to contact them, sadly not describing the issue. I have a G3 that... Won't boot from a Sil3112 if there isn't an IDE disk installed at the same time
I can't say I've ever tried without an IDE drive present. These machines are notoriously cranky and a time or two I've had to resort to an OFW init-nvram to straighten things out. [But I do multiboot several other OSes.]
 

joevt

Well-known member
I should have said G3 v2 which is OFW 2.4.

I can't say I've ever tried without an IDE drive present. These machines are notoriously cranky and a time or two I've had to resort to an OFW init-nvram to straighten things out. [But I do multiboot several other OSes.]
What version of OF does G3 v3 have? I thought 2.4 was the latest for Beige G3.
I have these (the 1.49/1.53 are ATY,Fcode versions):
Code:
077d.40f2 Beige G3 Desktop                            Open Firmware, 2.0f1   1.49
077d.45f1 Beige G3 Minitower                          Open Firmware, 2.0f1   1.49, 1.53
077d.45f2 Beige G3 (v3)                               Open Firmware, 2.4     1.49, 1.53
 
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