G5 Quad Gen 1 Delphi Cooler Rebuild

[Winman486]

Hi everyone! THis is my first post on here and I am typing it on the Quad as we speak. I have had several of this style coller and they seem to all leak. Granted this one runs with no overtemp light but core 2 seems to hit 90c on a regular basis. Anyways I had a quad before that was destoryed by shipping and I tried to rebuild the cooler and could never seem to get it right also the thermal calibration would fail. So my question is there any post going over the single pump cooler if so please link it I have only been able to find the dual pump posts and second of all what coolant should I use along with what is the best way to bleed the system and does anyone have the pin out to the pump. Also what should the G5 idle at most of the time it sits around 43c but as I type core 2 on cpu 1 is the hottest at 68 to 72 while the other are 10 to 20 degrees cooler. I assume 90 though is a bad thing under load. Regardless any help would be greatly appreciated!

 

[Quadraman]

I've always wondered if a more modern liquid cooler might be made to work in a Powermac G5, since the ones from Apple were leaky crap. Maybe that should be your experiment, instead of trying to fix something that is only going to leak again.

 

[Byrd]

I’ve spent some time looking into adapting an off the shelf AIO water cooler into a Quad G5, the issue is the mounting mechanism (which holds down the CPU daughter cards tight onto the motherboard) is large and there is a very small opening to fit a water block - and two of them, don’t forget. The waterblocks also corrode out and should not be trusted for use these days.

I recently converted a Quad G5 using off the shelf Coolermaster heatsinks and fans. Jury is still out if it was a good move, as it does not crash but the exposed G5 cores are not good candidates for heatsink contact. Anyhow, my Quad does not crash at least.

 

[CursedSilicon]

I’ve spent some time looking into adapting an off the shelf AIO water cooler into a Quad G5, the issue is the mounting mechanism (which holds down the CPU daughter cards tight onto the motherboard) is large and there is a very small opening to fit a water block - and two of them, don’t forget. The waterblocks also corrode out and should not be trusted for use these days.

I recently converted a Quad G5 using off the shelf Coolermaster heatsinks and fans. Jury is still out if it was a good move, as it does not crash but the exposed G5 cores are not good candidates for heatsink contact. Anyhow, my Quad does not crash at least.

Could you elaborate on that? I've got a Gen 1 G5 Quad that seems to be slowly dying to overheating and would love to replace it with something more reliable. (I suspect mine either has pump failure or coolant blockage. Thankfully no leaks, yet!)