Hmm, this is new to me, Rubycon caps in an iMac. All I've seen are Nichicon.
Perhaps, it is not a bad batch of capacitors, just heat inside the Mac.
Great, thanks peerperpc for those links. John Gordon's Tech blog referes tho, to MacInTouch (http://www.macintouch.com) -timely, accurate info since 1985. But searching there, that article doesn't shows up. Still, I liked them, great reading, there will always be something new to learn and relearn over again and again.
Thanks again FBz, for supplying more capacitor shots -great to have them exposed and archived here, for future references.
Shots of my;
iMac G5 1.9 17" (iSight) (https://everymac.com/systems/apple/imac/specs/imac_g5_1.9_17.html)
(http://macos9lives.com/smforum/index.php?action=dlattach;topic=5582.0;attach=9514;image)
Rubycon capacitors, non swollen nor leaking. Startup failure could be many things on this logic board. 3rd led blinks once, which specifies it to CPU/GPU -could just as well be bad current due to 'bad boy rude' caps.
iMac G5 1.8 20" (https://everymac.com/systems/apple/imac/specs/imac_g5_1.8_20.html)
(http://macos9lives.com/smforum/index.php?action=dlattach;topic=5582.0;attach=9516;image)
(http://macos9lives.com/smforum/index.php?action=dlattach;topic=5582.0;attach=9518;image)
Nichicon capacitors, 6 of them a tiny bit swollen -I agree these are heat related, but otherwise good caps., why this iMac still lives.
they were literally built to run TIGER
G5 doesnt make any sense to use (and choose over an intel mac/hack)
the shittiest thing about g5's is that, theres hardware/software incompatibilities between the g5 + intel....
Thanks for your inputs Chris.
Inventions has never been used only -for what they were intended for. That's also the reason why we find ourselves here.
My Mac mini G4/1.42 (https://everymac.com/systems/apple/mac_mini/specs/mac_mini_g4_1.42.html) were built for Panther, but it runs Mac OS9, much better -Thanks to you guys and four years.
My iMac 20-Inch "Core 2 Duo" 2.4 (Al) (https://everymac.com/systems/apple/imac/specs/imac-core-2-duo-2.4-20-inch-aluminum-specs.html) were built for Tiger. But due to my personal interests only lies in PowerPC applications, that one runs Mountain Lion.
My iMac 21.5-Inch "Core i5" 2.7 (Late 2012) (https://everymac.com/systems/apple/imac/specs/imac-core-i5-2.7-21-inch-aluminum-late-2012-specs.html) were built for Mountain Lion. But it has run everything else Mac, Win, Linux, currently Mojave and patched Big Sur.
The only device I own that actually runs what it were 'built' for is my Mac mini "Core 2 Duo" 2.26 (Late 2009) (https://everymac.com/systems/apple/mac_mini/specs/mac-mini-core-2-duo-2.26-late-2009-specs.html) running Snow Leopard, released August 28, 2009.
I'm sure I wasn't built for changing elders diapers for 30 years, but nevertheless that's what I feel good running on.
My iMac G5 1.8 20" (https://everymac.com/systems/apple/imac/specs/imac_g5_1.8_20.html) Introduced August 31, 2004 - Discontinued May 3, 2005. Were built for Panther, released October 24, 2003, as it came Pre-installed with Panther. Tiger was first released April 29, 2005. I totally agree with you on the latter, if need be, I can just run Tiger on an Intel.
I have no interest nor usage for running this G5 on Tiger, but on Jaguar, that supports the NVIDIA GeForce FX Go5200 GPU -it makes a whole lot more sense. It's a perfectly well preserved iMac, that are in caring hands, I rarely start it up.
I'd like to modify it tho, but there's a feeling holding me back, wanting to preserve its aesthetics, for future historical reasons -no I'm not gonna open up an Apple museum. That doesn't mean I won't be modding it one day, but that part will have to be postponed, due to costs and tweaking design concepts. I need to 3D print at least a new backside for it, before modding it with better cooling and airflow.
Fun odds, the last 3 days, I had considered swapping out the power supply, sooner than latter, eliminating any danger of flybacks.
Then you pop up with this cool find The ATX2AT Smart Converter (https://www.kickstarter.com/projects/doctb/atx2at-smart-converter-protect-your-retro-hardware) Thanks a lot Chris, for sharing.
obviously its for vintage