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CPU Upgrades / Re: The 1.6ghz Sonnet Encore MDX overclocking project
« Last post by redstudio on Today at 03:55:37 AM »
I confirm GaryN's observations.. in fact I had made them too (see at the beginning of the conversation of this post). visibly seen after placing and observing thermal paste on copper heatsink. Half CPU not covered.
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Hardware / Re: Copper heatsink G4 mini
« Last post by Jubadub on Today at 01:59:53 AM »
Maybe this heatsink should be called "aBsink", if my bad English doesn't make it sound bad :)

Yes! Brilliant! And marketable! :)
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CPU Upgrades / Re: The 1.6ghz Sonnet Encore MDX overclocking project
« Last post by Jubadub on Today at 01:49:37 AM »
@GaryN I see, so you meant horizontal alignment, and I assumed you meant vertical. Yeah, now that is a problem. I suspect even Sonnet didn't realize the copper heatsinks were a thing early enough in time or, if they were aware, they assumed the alignment and all would be the same for all the heatsinks. In short, what most likely happened is that Sonnet got Apple'd!

I keep thinking there must be something we could do about this, but I guess that would be ugly, nasty and convoluted...

Y'know, it might be worth a look to see if you can perhaps find a 3rd party copper heatsink that will fit and also not have this issue. Some people tried that, and I don't know if they succeeded. I know I tried years ago, then gave up and went for the Apple one (as I wasn't affected by the MDX problem since I never got one). Or, probably better, it also seems like liquid-cooling might be your best friend to address that very issue you pointed out.

Then again, a dual 7447 @1.83GHz is more than good enough for just about anything.

@DieHard I honestly think the pre-Quad-core liquid-cooled G5s were engineered precisely to lead people into accepting the upcoming switch to the generic IBM-PC-compatible Intel-based architecture. Even the MDD's power supply wasn't on the bottom. I don't think their engineers were incapable of seeing the issue with that design from the get-go.

I wonder if the power supply of a G5 could be externalized... But that'd be a different topic.
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Cubase/Nuendo by Steinberg / Re: VST system link- advice for KVM switch
« Last post by Jubadub on Today at 12:54:12 AM »
Can anyone reccomend a KVM switcher? is/ was there a good one to look out for so that I dont have to use a pc one with lots of turnarounds...

I used to have the 8-port version of the following Dual-Link DVI-I KVM:

https://www.amazon.com/ATEN-4-PORT-Dual-link-Dvi-CS1784A/dp/B004LB5AQ8/

Used it with my MDD, Mac mini G4, G5 Quad Core, G5 2.7GHz DP, Raspberry Pi, PSVita TV, generic x86 PC, work-provided x86 laptop for remote working. It worked perfectly for me and served me incredibly well for the 2 whole years I stayed in Germany. I could switch between all 8 devices using the same monitor, mouse, keyboard and speakers without having to get up from my chair. Because it is also a USB hub, I had things like PS1 and GameCube controllers with USB controller adapters all connected to it, and shared across all these devices, for any OS or hardware I had, as well. Also printer, scanner, 720P webcam, mic, and anything else USB, working across all the devices (unless if one of the OSes lacked drivers for a specific one anyway).

That setup was the peak of my physical possessions in the past...
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Cubase/Nuendo by Steinberg / VST system link- advice for KVM switch
« Last post by nickbirkby on Yesterday at 11:56:40 PM »
Hello everybody.
Im setting up two G4s to try and run VST system link betweeen them. (Using an old Korg 1212io in the one and a Echo Layla on the other to link by SPDIF).

Can anyone reccomend a KVM switcher? is/ was there a good one to look out for so that I dont have to use a pc one with lots of turnarounds...

Many thanks!
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Thank you for the explanation, laulandn! Do not try to pace yourself, let loose your chaotic brain on the forum. If people are not interested they will just read other threads. There are many nerds that share your interests here.
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CPU Upgrades / Re: The 1.6ghz Sonnet Encore MDX overclocking project
« Last post by GaryN on Yesterday at 03:35:10 PM »
@GaryN That's a good point with regards to the processor height difference in the MDX, in terms of getting the copper heatsink to do its job properly. However, you should still be able to use it properly for both CPUs if you add copper shims (one or multiple). Using 7448 and 7457 processors, and/or interposer boards, instead of the usual 7447 or 7455 with MDX and stock daughtercards also leads to those kinds of height concerns. The opposite is also true: Washers/spacers also help with when the CPUs are too high for the heatsink. Quoting one of my linked comments:

I'm afraid you misunderstand the problem. Height has nothing to do with it.

The procs on the MDX board are in a different position than the Apple boards. If you look at the pic, you can see the contact surface is just large enought to cover the procs and transfer the heat up the pipes.
The white rectangles are the location of the original 7450s on the Apple boards. The red are the 7447s on the MDX. The problem is obvious.

(Nitpickers: Don't hold me to absolute exact-ness here. I'm not 100% certain that this is exactly where the procs align. This is only from memory but it clearly makes the point. I would have to pull the MDX out of my MDD to check precisely where they land and I'm not going to do that.)
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CPU Upgrades / Re: The 1.6ghz Sonnet Encore MDX overclocking project
« Last post by DieHard on Yesterday at 01:42:12 PM »
Quote
What's equally as remarkable is that you would think after all that, the G5 would have been whisper-quiet. Oops…

Yeah, not only "noisy" but some of them were liquid cooled and to add to Apple's incredible track-record of "Think different" "Design Different" and sometimes "Screw the customer over with a different design" the liquid-cooled G5s were dying left and right in music studios due to leaks... from the web...

Quote
    "I have a lab of 17 Dual 2.7Ghz G5s that are all now leaking their coolant- all at once. A significant number are dead in the water and the rest are just holding on right now. Symptoms are wide-ranged but will include fans spinning wildly, machines shutting down when they heat up, greenish liquid leaking from the case, and if you are able to look, crystalized liquid forming where the CPU meets the heatsink as well as corrosion of all the metal surrounding the CPU module. Eventually, the machines just stop working altogether necessitating a replacement of CPU, Logic Board, Power Supply, and two smaller parts. In one case the power supply started to shoot off black smoke and then died.

    "As of yet, Apple has been fairly unresponsive in fixing or replacing them and I am now working on making this more public. I am curious to know if any other people are having this problem. I know of 3 other cases outside our own lab here. The machines in our lab were the first of the dual 2.7s- they were bought right when the came out."

I can tell you as an Apple-tech in the field in 2005 thru 2007, it was mind blowing to see $3500+ music studio and graphics studio machines with blown logic boards, and for added insult, the power supply was at the bottom, so, 4 out of 5 dead G5s had blown power supplies also; I can tell you this was NOT a "one-off"... I am just one guy, and I personally inspected a few dozen that leaked !  Man it was ugly... white liquid trails running into CPU sockets, blown logic boards, and then a small trail going directly into the Power supply, I almost didn't have the heart to show the client that forked over big bucks, the absolute destruction of their workhorse from just being used like a computer should be.  Many were clean as a whistle with no dust and very little use and BAMMM, death.  As irony and Apple go hand in hand, the slower and cheaper 2.3 was still air cooled and there are probably a lot of them still alive today, and also the single CPU models, but the most of the dual 2.5 or 2.7 units died in epic fashion.

This is probably Apple's worst "screw-over" to date, by never officially making a re-call... and just saying in 2006/2007 at the very height of the number of leak failures, "Hey sweet client, this new intel Mac pro is better than those shitty G5s in about 10 ways, so order now"

Talk about tangling a carrot, and wanting everyone to move on... I can say, that if you weigh acoustics, expand ability, reliability, and power, they finally got it right with the cheese-grater Mac Pro; it's just a shame so many valued customers had to pay a ton of cash for Apple's own G5 mistakes before the Mac Pro.
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I know that it is a "recent" model and so, no driver for OS 9 but … they say that it is HID compliant … I wonder how much it is HID compliant …

Check this Iiyama ProLite T1521MSC-B1 :)

I can try to get my mini G4 at work to try a Iiyama touch screen we use to check the behaviour of OS 9 with them.
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Hardware / Re: Copper heatsink G4 mini
« Last post by indibil on Yesterday at 08:00:56 AM »
Maybe call it an "iSink"… after indibil’s original approach? ;D

It isn’t pretty (yet) but the first “replicant” here is finally complete.

Very good job @aBc. Keep in mind that this heatsink, in addition to being made of copper, which greatly improves conduction, has a better construction than the original, which if you look closely, is a thin aluminum base, with INSERTED fins, which worsens conduction compared to that they were part of the same block.

Maybe you have a few less fins because I bought a 50x50 heatsink and yours was 50x100, and in the manufacturing process it may have a lower density of fins, but don't worry, the original heatsink is ridiculous, I don't even know how it dissipates. And a heatsink with pipelines is only a way to reduce costs, an entire block of copper conducts heat much better.

https://youtu.be/IiA4dH-3-EU?si=OAdjYYZ088SbCUuN


Maybe this heatsink should be called "aBsink", if my bad English doesn't make it sound bad :)
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