I think the point is that OS9 can't take advantage of the second CPU. So if you're building an OS9 machine there's no advantage. If you boot into OSX however, you obviously benefit.
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I think I might be about to do something silly...
- Thread starter r6mile
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I think the point is that OS9 can't take advantage of the second CPU. So if you're building an OS9 machine there's no advantage. If you boot into OSX however, you obviously benefit.
If @repairedCheese is alright with it (since his objective was to keep his MDD an OS 9 machine), I would love to get hold of that dual 1.25.
@r6mile I'll ask the seller if they can ship to the US. In the event that they can't, do you think you could grab that for me and then we'll figure out what to do from there?
@r6mile I'll ask the seller if they can ship to the US. In the event that they can't, do you think you could grab that for me and then we'll figure out what to do from there?
You know, OS 9 can handle a dual cpu. And it's more for making 10.4 and even 10.5 run better. But this all has a lot of moving parts, and it's not like I've ever done a Mac cpu swap before. X86? Sure. But this is a different animal.
I am interested, though. I just wouldn't be bitter if you ended up with the thing.
@repairedCheese If it's a priority for you, then by all means, it's yours.
The seller that listed the DP 1.25 also happens to be selling a DP 1.0, which would still be an upgrade over a SP 1.25. I can settle for that.
They've also got a DP 867, which is roughly equivalent to a SP 1.25, if anyone else wants to get involved...
The seller that listed the DP 1.25 also happens to be selling a DP 1.0, which would still be an upgrade over a SP 1.25. I can settle for that.
Powermac G4 MDD DP 1.0 Ghz Processor Board | eBay
Powermac G4 MDD CPU board DP 1Ghz. Condition is Used.
www.ebay.co.uk
They've also got a DP 867, which is roughly equivalent to a SP 1.25, if anyone else wants to get involved...
@z970mp Honestly, the G4 MDD has proven being worthy of being my dream Mac all those years ago. Capable of running OS 9 with little effort, and able to run most ppc OSX apps rather well? So perhaps it might be a bit of a priority to me. 
But honestly, this might just be the nicest forum I've ever had the good fortune to find myself on.
But honestly, this might just be the nicest forum I've ever had the good fortune to find myself on.
@repairedCheese That makes sense. I suppose it's settled, then.
I've (more or less) noticed that as well, in my three+ years of residence here. I've found that this is chiefly a result of two reasons:
A. The community here skews towards the older and therefore usually more matured end. This eventually rubs off onto on the younger users over time as the established forum "mood" or "etiquette", and so the cycle repeats.
B. The users here tend to have a unique kind of mentality that none of the other forums on this site (or really, many other sites) posses; a kind of "If it's broke, I'll teach you how to fix it, and would then be happy to hear all about your proceeding adventures with it in the future" sentiment. As well as a "I'm going to make it do this because I want to see it happen" sentiment, which is more often than not a driving factor behind the innovations that are birthed here.
I still can't quite pin it down myself, but I'm 90% sure it at least has something to do with that.
In any case, it does take a certain kind of individual that just isn't prevalent in today's world. This is a travesty.
Compare us with Reddit, and you'll see what I mean...
I've (more or less) noticed that as well, in my three+ years of residence here. I've found that this is chiefly a result of two reasons:
A. The community here skews towards the older and therefore usually more matured end. This eventually rubs off onto on the younger users over time as the established forum "mood" or "etiquette", and so the cycle repeats.
B. The users here tend to have a unique kind of mentality that none of the other forums on this site (or really, many other sites) posses; a kind of "If it's broke, I'll teach you how to fix it, and would then be happy to hear all about your proceeding adventures with it in the future" sentiment. As well as a "I'm going to make it do this because I want to see it happen" sentiment, which is more often than not a driving factor behind the innovations that are birthed here.
I still can't quite pin it down myself, but I'm 90% sure it at least has something to do with that.
In any case, it does take a certain kind of individual that just isn't prevalent in today's world. This is a travesty.
Compare us with Reddit, and you'll see what I mean...
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@z970mp Well, I'm an old school pc user who use to think the grass was greener on the other side. Macs got a lot less interesting for me when they went x86 and these days it feels like we lost something special of the old unique computer hardware era, before IBM Clones took over everything. So I'm not exactly young by internet standards.
Makes me wonder how many of us were kids on the internet back when it took real effort to be on the internet, because I had dial up on a 486, all to myself. Well, as much as anyone could have dial up all to themselves.
Makes me wonder how many of us were kids on the internet back when it took real effort to be on the internet, because I had dial up on a 486, all to myself. Well, as much as anyone could have dial up all to themselves.
@repairedCheese I agree. Most Intel Macs are not just poisoned with the Management Engine, but are also innately less unique than the Macintosh traditionally was, just by their mass-populace architecture alone.
And I wasn't referring to you as any group or label by the way, that was just a general reflection on our clientele.
And I wasn't referring to you as any group or label by the way, that was just a general reflection on our clientele.
Help! My MDD won't power on! It was fine last time I used, just yesterday! I've tried reseating the PRAM battery, different power cables etc, but no success. Could my PSU just have died like that, without any warning? Any other suggestions on what I should try?
@r6mile
forums.macrumors.com
PowerMac G4 MDD won't power up
Success!! After a couple of hours trying all sorts of remedies I finally got two MDD G4s up and running. I also got a crash course in MDD symptoms of power failure. Heres a quick list of steps to try. The list is created from hours and hours of reading other forums. In order of importance...
forums.macrumors.com
Thanks both, I've tried all sort of combinations from the thread you linked (PMU reset, pram battery, GPU and RAM out one by one, etc) but cannot get any signs of life. This is extremely frustrating as I haven't had this machine long at all! I'm not ready to give up on it just yet though.
Does anyone have experience with converting a micro ATX case to the MDD? The guy who used to sell those ready made converter cables doesn't seem to have any in stock for MDD.
EDIT: OK after lots of panicked random pressing and rrseatint, now it does power on, but only the moment when I plug the video card back in (power button does nothing). Then it does a beep, and then it goes to open firmware. From there I can type mac-boot and it goes into Leopard fine. What is going??
EDIT 2: ok now after I get onto the OS the computer freezes shortly after. Perhaps it's my logic board that is dying?
Does anyone have experience with converting a micro ATX case to the MDD? The guy who used to sell those ready made converter cables doesn't seem to have any in stock for MDD.
EDIT: OK after lots of panicked random pressing and rrseatint, now it does power on, but only the moment when I plug the video card back in (power button does nothing). Then it does a beep, and then it goes to open firmware. From there I can type mac-boot and it goes into Leopard fine. What is going??
EDIT 2: ok now after I get onto the OS the computer freezes shortly after. Perhaps it's my logic board that is dying?
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Here is a video of this very strange behaviour:
drive.google.com
- power button does nothing
- reseating GPU somehow turns the computer on*
- single beep
- open firmware prompt
- mac-boot goes into Leopard
* I recall it has been doing this for a while, even before the other problems. And holding the power button did not always turn the computer off, so I often had to pull the power cord. Perhaps that was all a precursor?
20200817_100034_1.mp4
drive.google.com
- power button does nothing
- reseating GPU somehow turns the computer on*
- single beep
- open firmware prompt
- mac-boot goes into Leopard
* I recall it has been doing this for a while, even before the other problems. And holding the power button did not always turn the computer off, so I often had to pull the power cord. Perhaps that was all a precursor?
My hunch is that this is multiple problems masquerading as one.
While the machine is off, try reseating the front panel board connector at both ends, and MAKE SURE the button component on the front panel board is securely soldered to the joints (I had to hot glue mine back because it actually broke off and I didn't feel like soldering tiny components or buying a replacement). A couple of weeks ago, the power button on mine wouldn't do anything either (in fact, the light just shut off one day). I ended up having to get the connector into a just right position for it to communicate properly with the rest of the system.
And I'm not 100% on this, but there is a chance that reseating the GPU with the machine still connected to power turning it on is standard behavior. I believe I also encountered this myself once before, however I never handled board cards or components with it plugged in again.
If it doesn't freeze in Leopard too shortly, use Spotlight to quickly check the syslog in Console for the date and time of the last freeze. Chances are, it will have something there resembling a clue. However, I still maintain that your freezing issue is incompatible RAM.
Personally, I would first take a chance with this option to cut costs:
But on the other hand, these Crucial modules will most likely be the safest bet if you don't feel like chances; they seem to be about the same to what I've got:
www.ebay.co.uk
While the machine is off, try reseating the front panel board connector at both ends, and MAKE SURE the button component on the front panel board is securely soldered to the joints (I had to hot glue mine back because it actually broke off and I didn't feel like soldering tiny components or buying a replacement). A couple of weeks ago, the power button on mine wouldn't do anything either (in fact, the light just shut off one day). I ended up having to get the connector into a just right position for it to communicate properly with the rest of the system.
And I'm not 100% on this, but there is a chance that reseating the GPU with the machine still connected to power turning it on is standard behavior. I believe I also encountered this myself once before, however I never handled board cards or components with it plugged in again.
If it doesn't freeze in Leopard too shortly, use Spotlight to quickly check the syslog in Console for the date and time of the last freeze. Chances are, it will have something there resembling a clue. However, I still maintain that your freezing issue is incompatible RAM.
Personally, I would first take a chance with this option to cut costs:
Corsair Value Select VS1GB333 2GB 184-Pin DDR SDRAM DDR 333 (PC 2700) | eBay
<p dir="ltr">Corsair Value Select VS1GB333. Condition is Used. Dispatched with Royal Mail 1st Class.</p>
www.ebay.co.uk
But on the other hand, these Crucial modules will most likely be the safest bet if you don't feel like chances; they seem to be about the same to what I've got:
Crucial CT12864Z335 (1 GB, PC2700 (DDR-333), DDR RAM, 333 MHz, DIMM 184-pin) RAM Module for sale online | eBay UK
Find many great new & used options and get the best deals for Crucial CT12864Z335 (1 GB, PC2700 (DDR-333), DDR RAM, 333 MHz, DIMM 184-pin) RAM Module at the best online prices at eBay UK! Free delivery for many products!
EUREKA!!!
I think I've spotted the issue. The tape on one of the pins on the Radeon 9650 had come off, probably causing all sorts of issues with power redirected to the wrong place et. My latest acquisition - a Digital Audio 533 - would not boot off the card either. Meanwhile, putting the old Radeon 9000 Pro back in seems to have solved everything. I'll do some more proper testing to make sure it's all working fine, but this is extremely reassuring so far!! If it turns out it was something as silly as that, sorry for wasting people's time!
EDIT: Yes I am definitely an idiot. Re-taped the card, and all seems fine now! No random crashing either (I replaced half of the RAM sticks recently), so am now all on Crucial 512MB PC2700s. Hopefully it all stays that way with no issues.
I think I've spotted the issue. The tape on one of the pins on the Radeon 9650 had come off, probably causing all sorts of issues with power redirected to the wrong place et. My latest acquisition - a Digital Audio 533 - would not boot off the card either. Meanwhile, putting the old Radeon 9000 Pro back in seems to have solved everything. I'll do some more proper testing to make sure it's all working fine, but this is extremely reassuring so far!! If it turns out it was something as silly as that, sorry for wasting people's time!
EDIT: Yes I am definitely an idiot. Re-taped the card, and all seems fine now! No random crashing either (I replaced half of the RAM sticks recently), so am now all on Crucial 512MB PC2700s. Hopefully it all stays that way with no issues.
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