I've already read reviews of people who tried installing Leopard on Macs that had upgrade cards in them, but that it read the machine ID and knows it's not up to the "specs".

Do these have some "trick" to make the installer skip over that part of the verification process? Do others? Very curious as I have a G4 1.6 GHz in my AGP tower and I'm wondering if it's a messy, if not lost cause, to even consider it.

http://www.macfixit.com/article.php?story=20071029000757347

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Tiger wrote:
I've already read reviews of people who tried installing Leopard on Macs that had upgrade cards in them, but that it read the machine ID and knows it's not up to the "specs".

Do these have some "trick" to make the installer skip over that part of the verification process? Do others? Very curious as I have a G4 1.6 GHz in my AGP tower and I'm wondering if it's a messy, if not lost cause, to even consider it.

Leopard wouldn't install on my Dual G4 867 MHZ, the "Mirror Drive Door" model and from what I read that model should meet the minimum specs. I will probably try it tomorrow, but I am going to experiment with something.

I first installed Leopard on an external hard drive so I could check compatibility with Creative Suite 2 and FileMaker 7 (both work fine thus far). So I am going to take that external drive to the G4 and see if it will boot and run programs without smoking. If so, I will restore the external hard drive to one of the internal hard drives. If it bricks the Mac, well then a new one is in the offing anyway.

It won't brick your Mac. There are always ways to go back. You may have to reformat the hard drive to do it, but it should be doable.

Geez, after reading the horror stories of people on the web, I'm reticent to even go ahead with an install on my Dual 1.2GHz MDD G4. The Blue Screen of Death is never welcome and this machine is a production workhorse. Backing it up alone takes overnight. I can't take it down anytime soon, much less the potential downtime if it does crash the install. Maybe AFTER I buy a new Mac. Been waiting on new towers. Hopefully, not much longer.

Yes, I referred in 2 posts to two different computers. My home machine is an upgraded blue G4. My office Mac is the MDD G4.

just finished installing on this machine notta problemo

do NOT do an upgrade install, use either fresh install or Archive & install, do nOt do an uPgRaDe install !

oH and BTW.....dOn'T dO aN uPgRaDe iNsTall

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Tiger wrote:
Geez, after reading the horror stories of people on the web, I'm reticent to even go ahead with an install on my Dual 1.2GHz MDD G4. The Blue Screen of Death is never welcome and this machine is a production workhorse. Backing it up alone takes overnight. I can't take it down anytime soon, much less the potential downtime if it does crash the install. Maybe AFTER I buy a new Mac. Been waiting on new towers. Hopefully, not much longer.

If you have a production machine there's no need to be on the bleeding edge of OS's. Wait until you're confident and the machine has some free time. Let the home users and techno-slaves do the legwork for you. If it's making money, don't do anything that could slow it down or jeopardize it's earning power.

Taking the AGP graphics 400 Mhz up to the 1.8 Dual processor has been an absolute nightmare.

I will give them credit for the information about some models not being able to handle the dual processor, but nothing was on the website about the needing to downgrade to os 9.2 then back up to 10.3 for the firmware and the installer programs to work.

i have neither disk an am running 10.2 so tack on an extra hundred bucks im going to have to shell out for the installation disks.

Im tempted to return the whole thing and just go for the 2.0Ghz single.

hope ya'll know better then i did.