Thread
17" AlBook power on issue.
I finally got my 65W charger for my G4 PowerBooks. I've got the 1.67GHz model working okay, but the other one (I believe it's a 1.33GHz but I'm not sure) has some kind of issue. Charger power light glows green on insert, when you press the power button you hear the system energize, the hard drive spins up, and then you hear a "peew" as it dies. I've swapped hard drives and RAM and disconnected the optical drive with no change.
This system worked at one point from what I'm told.
Any thoughts? This is the better condition of the two (the 1.67 has no optical, no PC Card, no audio board, etc.) so I'd like to get the other working.
This system worked at one point from what I'm told.
Any thoughts? This is the better condition of the two (the 1.67 has no optical, no PC Card, no audio board, etc.) so I'd like to get the other working.
who was the member who discussed this recently?
i think this would be of tremendous benefit to all of us MDD lovers
if we could get some more into + visual direction on how to go about
implementing water cooling.
http://aqua-mac.com/newsataqua-macaq.html
this page is the best thing to start with.. but.. i dont understand really what im looking at or how it works to attach this thing..
http://www.s155158671.websitehome.co.uk/moremddcoolingmo.html
too bad theres no way to water cool the power supply..
as the power supply fans are the biggest problem
i need to find a better quality fan the ones i have are still too loud for my liking
Did you pull out the battery?
No battery installed, unless you mean PRAM?
Well, I pulled the board, checked it, and reinstalled it. No change. Also tried a PRAM reset and PMU reset.
Does is run with the battery from your other one?
Neither has a battery lol. Power adapter only.
Oh crap... I just read that using the power supply adapter disables the ADC thing. I use an Nvidia card with a DVI and an ADC port. I actually don't use Apple displays, I have an ADC-DVI adapter so I can connect 2x regular DVI monitors. I'm not sure if that means that the ADC port won't work at all or what, but it looks like I'll need a new Nvidia card with 2x DVI outs. I forget which cards for Powermacs have that.
My current MDD is way too loud. There's this weird whirring noise and I have no idea where it comes from, but it's not the power supply or the big fan pointing on the DVD drives since I replaced all of those already. My video card has no fans either, so the noise is probably either something internal on the power supply or it's the CPU heatsink fan.
I imagine if I can get the power supply replaced and get those CPU fans removed and replace with something, the QS or MDD would be just about dead silent.
My current MDD is way too loud. There's this weird whirring noise and I have no idea where it comes from, but it's not the power supply or the big fan pointing on the DVD drives since I replaced all of those already. My video card has no fans either, so the noise is probably either something internal on the power supply or it's the CPU heatsink fan.
I imagine if I can get the power supply replaced and get those CPU fans removed and replace with something, the QS or MDD would be just about dead silent.
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).
Figured out the issue.
This 1.33 board is in a 1.0 case. The guy I got it from had hooked up the sound board and modem board from the 1.0, and from what I can see those don't play together. Disconnected both and it booted.
Of course it keeps freezing after loading the OS, but...
This 1.33 board is in a 1.0 case. The guy I got it from had hooked up the sound board and modem board from the 1.0, and from what I can see those don't play together. Disconnected both and it booted.
Of course it keeps freezing after loading the OS, but...
Well, your further than you were before. so thats progress I think?
one on the side you wont be able to hear much until the 60mm in the psu is gone.
I already switched out the fans and there wasn't much of a difference. There's something else with that power supply that just isn't right.
No, they don't. The fans I replaced them with are much better. There's some kind of weird whirring noise or something going on with the power supply so that's why I want to replace it. I'd rather take that route than to replace them again.