3 posts 3 answers:
1. Quieter, much much quieter. All the threads and sites I have seen, it is a toss up as to what to target first.. But to me, that power supply has got to go. Replace the fans, but that thing puts off so much heat with stock fans I don't think I would really recommend decreasing airflow in it. If you decrease airflow that much, I would guess it is only going to help hasten the death of a MDD power supply that was likely already destined for a short life. Which leads to a replacing it vs modifying stock.. I went 450 watt, but there are cheaper 400 and 350 (maybe even 300) that would be far more efficient/cooler and still be plenty for what you could probably be running inside a MDD G4.. . Next, the 60 mm side fan is noisy as can be (way to high rpm for a 60 mm to ever be quiet), if you have modern burners I can not see one or even two optical drivers deserving that kind of airflow. The 120 MM fan for the cpu is sill pretty loud with the copper heat pipe heatsink. Dual, or in my case 3x, 120 mm thinner (standard thickness for 120) fans with that big radiator does a lot.
2. Haven't read far enough into it as I didn't have an ADC card or displays I wanted to use (video card I intentionally went out looking for non-adc).. Biggie with that ADC supply line, it provides 25v DC.. Maybe someone here can confirm, but I would guess that 25v is not used by any ADC card directly but instead just passes it through to the pins on the ADC display cable to power the ADC display you would normally be attaching. Given I have seen ADC to DVI adapters and a goofy ADC to DVI+ADC Power injector cable to provide power to ADC displays without an ADC card....... well... I am guessing you could plug the ADC card in an it might work fine as long as you are not expecting an ADC monitor to work.
2/3. The power supply, really any micro atx as the thickness (from back/far side panel towards forward/close) is a standard defined in micro atx. And it is thinner, just slightly, than an a standard MDD power supply so you should not have any issues is everything fits with a stock MDD power supply.
Can tell you, if you want to go all out, get another 120 MM x 120 MM x 40 mm (or so thickness) radiator to add to the cooling loop and you could really slow the fan down I think (it already is really slow, if I had an H80i vs H80 I would plug in the the usb interface to a PC to monitor the fan speed).
1. Quieter, much much quieter. All the threads and sites I have seen, it is a toss up as to what to target first.. But to me, that power supply has got to go. Replace the fans, but that thing puts off so much heat with stock fans I don't think I would really recommend decreasing airflow in it. If you decrease airflow that much, I would guess it is only going to help hasten the death of a MDD power supply that was likely already destined for a short life. Which leads to a replacing it vs modifying stock.. I went 450 watt, but there are cheaper 400 and 350 (maybe even 300) that would be far more efficient/cooler and still be plenty for what you could probably be running inside a MDD G4.. . Next, the 60 mm side fan is noisy as can be (way to high rpm for a 60 mm to ever be quiet), if you have modern burners I can not see one or even two optical drivers deserving that kind of airflow. The 120 MM fan for the cpu is sill pretty loud with the copper heat pipe heatsink. Dual, or in my case 3x, 120 mm thinner (standard thickness for 120) fans with that big radiator does a lot.
2. Haven't read far enough into it as I didn't have an ADC card or displays I wanted to use (video card I intentionally went out looking for non-adc).. Biggie with that ADC supply line, it provides 25v DC.. Maybe someone here can confirm, but I would guess that 25v is not used by any ADC card directly but instead just passes it through to the pins on the ADC display cable to power the ADC display you would normally be attaching. Given I have seen ADC to DVI adapters and a goofy ADC to DVI+ADC Power injector cable to provide power to ADC displays without an ADC card....... well... I am guessing you could plug the ADC card in an it might work fine as long as you are not expecting an ADC monitor to work.
2/3. The power supply, really any micro atx as the thickness (from back/far side panel towards forward/close) is a standard defined in micro atx. And it is thinner, just slightly, than an a standard MDD power supply so you should not have any issues is everything fits with a stock MDD power supply.
Can tell you, if you want to go all out, get another 120 MM x 120 MM x 40 mm (or so thickness) radiator to add to the cooling loop and you could really slow the fan down I think (it already is really slow, if I had an H80i vs H80 I would plug in the the usb interface to a PC to monitor the fan speed).