Power Mac G4 MDD Cooling

The power supply won't have issues unless you have an ADC display. The trickle power for the power button on it heats up the power supply but if the unit is off, the fans don't spin. You have to kill the power to the power supply if you use such a display if you shut it off or sleep it. Both my dual 1ghz MDD's run 60 degrees on the CPU, I never sleep or shut them off and they keep chugging. The one that's been running longer has 4 hard drives and a 9800 Pro video card as well. By the looks of your pictures you're going way overboard. The best thing you should do is add two small fans in the front hard drives and zip tie two more behind the CPU between it and the casing. The ones in the front should pull air in and the ones on the back should pull air out.

http://www.s155158671.websitehome.co.uk/aircoolingmddg4a.html

mine has been running for about 8 hours and it is at 125F according to istats menu is that a ok temp? and i do not use a adc monitor i use a 22 inch dvi display by acer

Oops I meant 60 degrees Celsius. You're running at 51.6 degrees Celsius. You're fine.

Hmmm. I have iStat running on both the DP MDD (1.42) and the Intel iMac. The MDD shows a CPU temp of 73125f (no decimal point); there's either a problem with the installation or there should be a decimal point? The iMac shows 109f, ie, normal. Anyone have any thoughts?

ok i did what you said about adding h fans behind the processor just finished hahahah took a long time and now the mdd's door doesnt shut right! i have to kinda slam it to get it shut and then when i pull the release lever it makes a snapping noise like there is something in the way or the door ? but their isnt.

How come your video card has so much extra unused board space at the end of it? That's really strange.

If there's no electronics or anything right there, you could probably cut off some of it and improve airflow.

How come your video card has so much extra unused board space at the end of it? That's really strange.
If there's no electronics or anything right there, you could probably cut off some of it and improve airflow.

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It is not that strange. The case was actually designed to accommodate full size cards because they're not incredibly uncommon.

thats actually the fastest NVIDIA graphics ADC graphics card i paid a lot for it im scared to touch it lol!

all im worried about is the power supply heating up on the (400wat AC Bel) power supply fans in it i took out and cleaned the power supply so it is squeaky clean. i guess they just run hot when i put my hand in the back were the power supply vent is i feel very little air compared to my quicksilver and so on and the air that does come out is really hot i

I WANT TO PUT FASTER FANS IN IT I AM NOT WORRIED ABOUT NOISE.

How come your video card has so much extra unused board space at the end of it? That's really strange.
If there's no electronics or anything right there, you could probably cut off some of it and improve airflow.

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It is not that strange. The case was actually designed to accommodate full size cards because they're not incredibly uncommon.

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Except why would they make a video card with unused space? Look at the actual card. The last 1/3rd of it is completely unused green space.

its because they knew people were gona be opening theese machines a lot so even if they would have cut it off right at the end of the board it would be unstable (LOOK AT PICTURE 3) it fits into a groove in the left to support the card.

Unstable? its jsut an agp card with a dinky small heatsink, I havent seen a full length card in a LONG time, probally back in the voodoo days, even my GTS250 isnt that long and its heatsink sucks up an extra slot (as big as your face!)

And pc makers havent included those grooves since who knows when, I know its a cold day if I see those full length card holders in a ATX case, and even with my old AT cases it was pretty rare

WELL ALL I KNOW IS THAT IS A KICK ASS CARD! IT IS NOT A VODDOO JUST BECAUSE ITS NOT A PC ! AND FOR YOU INFO IT IS NOT A DINKY HEAT SINK IT HAS A FAN ON IT AND THE CARD DOES STAY PRETTY COOL

WELL ALL I KNOW IS THAT IS A KICK ASS CARD! IT IS NOT A VODDOO JUST BECAUSE ITS NOT A PC ! AND FOR YOU INFO IT IS NOT A DINKY HEAT SINK IT HAS A FAN ON IT AND THE CARD DOES STAY PRETTY COOL

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What?

Yes it is a good card. The fan and HS are good size for the chip it has to cool. Good to hear it runs cool as well. You can extend its life by blowing out with some are to remove built up dust in the fan fins.

Voodoo was the name of a PCI card designed by 3fdx to crunch 3D for games. They were the ones who actually invented SLI. You could get 2 Voodoo2 card (mine has 12MB per card) SLI them together for even more triangle / polygon pumping goodness and then feed the input from your primary video card into and feed the whole mess out to you screen.

Also, why did you type all in caps?

THIS MDD IS SQUEAKY CLEAN TRUST ME I HAVE SOME KIND OF OCD ABOUT THAT ALL MY COMPUTERS ARE SUPER CLEAN INSIDE I CLEANED THE FAN FOR THE GRAPHICS CARD THE BEST I COULD HOWEVER THERE IS SOME DUST BEHIND THE FAN I CANT GET TO AND I HAVE HEARD PEOPLE BREAKING THE FAN AND HEAT SINK WHEN TAKING IT OFF SO IM KINDA SCARED TO TAKE IT OFF

WELL ALL I KNOW IS THAT IS A KICK ASS CARD! IT IS NOT A VODDOO JUST BECAUSE ITS NOT A PC ! AND FOR YOU INFO IT IS NOT A DINKY HEAT SINK IT HAS A FAN ON IT AND THE CARD DOES STAY PRETTY COOL

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Um cheif, 3dfx cards were in G4 mac's (notibly the voodoo 5) and I dont care if it has a fan on it or not, point was that there is no reason for that to be a full sized card, I used a comparison of my wifes card which had a GIGANTIC heat sink on it, and the fact it doesnt make it to the back of the case, stability is not the issue here

and FYI noone was insulting (your average card from 6 years ago) so get over it and quit getting your panties in a twist

WHATEVER! I LIKE MY CARD I DONT KNOW WHY YOU KEEP TALKING ABOUT VOODOO I HAVE A (((((((NVIDIA))))))) NOT A VOODOO SO QUIT TALKING ABOUT VOODOO!!!

well if you had read I said that was the last full length card I have seen, cause the question of WTH is up with that full length geforce 4 card, becuase thats odd

then if you can bother to remember you said whats with the voodoo (in all caps) its not a pc!!!@!!!@! OMG, when voodoo cards were quite commonplace in that style of machine ...

I don't understand, do we really have to keep you updated in your own thread?

back to the subject on hand, cooling is quite easy, instead of ziptied fans in all sorts of random locations, isolate the hottest part and put a fan on it!

(ps please turn off your capslock, its dumb and not helping your over reactionary attitude)

The extra long video card pictured above is the second version of the Apple nVidia Geforce 4 Titanium. The original version of the card that Apple shipped was a shorter version identical in size to the PC version. However, these shorter cards are still slightly longer than the typical video card. Apparantly, it was discovered that these shorter cards were subject to damage in shipping due to excessive vibrations when preinstalled in the MDD. Thus, Apple revised the design by making them full length to eliminate this problem.

I agree with Mike Richardson's comment about the lack of airflow. I have always felt that this full length card acts like a damn blocking the airflow in the MDD. The added length is in fact just blank and I have always wondered whether it would be a good idea to dremel it out or drill holes in it to improve the airflow.

well i have been running around to all theese eletronic stored pulling my hair out because i can find fans for it and i figure it is a older machiene and ill just let it live its life the way apple made it i do work for a computer store that has like every kind of mac possible and ill just buy another mdd when this one dies.

As a mod its my duty to remind everyone to follow the forum rules, and remember that "Keep it Civil" extends beyond the Lounge.

Why are we worried about a chunk of green plastic? These machines were built for as many hard drives as their are plugs. The cooling systems on these machines are fine.

As long as the machine doesn't reach 150F+ then you're ok.

It is crazy all this nontroversy about the 4600 Ti card. Yes, it is big. But you can see in the pictures that he has PCI fan on the other side of it anyway. I have this same card and it is excellent.

Anyway, I have also been concerned about cooling my MDD, it ran way too hot. No solution yet for me, I am considering re-casing and/or liquid cooling.