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.

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...

    "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.

Maybe call it an "iSink"… after indibil’s original approach?

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

Heyho. So here I am with a Mac Mini (1.5Ghz) running (nearly) Mac OS9!

I started my Mac career getting on for three decades ago with a lab Quadra. Then two decades ago I did a temporary support job that involved getting a G3 with dual boot OS X/Mac OS9. That lead me into full time Mac usage. But then Intel beckoned and for some time my only Mac OS9 access was virtual (Executor, then Sheep Shaver). Some for just play, but there's a little app that I need every few years or so and for that I have a Mac OS8.6 VM via Sheep Shaver.

During this time my only PPC Mac was a unbootable MDD that I finally lost patience with six months ago and gave it away. But now I find my way to this forum and immediately onto ebay to find a suitable Mac Mini. I bought what I thought was a 1.42Ghz one. Turns out its optical drive is broken (the case is currently off and to eject you need to move the bar upwards) and it's actually a 1.5Ghz one but it has twice the RAM of the listing (1Gb).

I messed about with USB and FW drives before learning that neither of these will boot! Then onto CDs until I found that 700Mb ones are not recognised in this drive. Whilst waiting for ebay to deliver me some 650Mb CDrs I used SuperDuper to create a USB bootable external drive, then when booted from that drive I used iBored to put the v9 installer CD image to the internal drive. I guess now I need to slow down and wait for those CDrs. But I already find myself reading the thread on using a mSATA disk via a SATA/IDE adaptor...! Cracking. Thank you to all who have spent so much time on this. Cheers Ferg

Quote from: aBc on Yesterday at 11:01:32 AM

Maybe call it an "iSink"… after indibil’s original approach?

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

"like"

"like"