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Apple Releases New PowerMacs
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pjkelnhofer said:
The site was overloaded with traffic when the picture went up so their host took the site down.
HiRez said:
Well said, HiRez.
I love the design of the G5, and its processing power is more than enough for my needs.
But the issues you've cited continue to inhibit me from buying one to replace my 3-year-old PowerMac G4. Waiting for Rev. C ... or the G6.
brykken said:
If you use broadband, it's usually worth the $29 to have an analog modem connection as a backup in case your connection goes down. It's only $29 and as the Boyscouts say: "Always be prepared."
Jordi C said:Apple-X.net published on saturday some photos of the G5 dual 2.5 watercooling system. The liquid seems to be 80% water.
As apple-X.net is down you can look at:
Anyone has experience in watercooling?
How about problems of escape, evaporation or degradation of the liquid?
There will be no evaporation as it is a closed system, so u will not run out liquid and have to top up. However there may be some condensation forming somewhere, where water molecules come out of the air and condense on the pipes, but i would imagine apple has this sorted out. I doubt the liquid would degrade, if it is 80% distilled water, and the rest looks to be antifreezing and anti corrosion stuff it should be fine, it would be more an issue of degradation of the pipes if anything, but again it looks like apple has this sorted.
aussiemac86 said:
You could only have a problem with condensation if the liquid cooling system is cooler than the air around it. In general any sort of a processor cooling technology (fan, heatsink, liquid cooling) is going to be the hottest thing inside the case and will never get below the overall case temperature.
Remember people liquid cooling for computers is nothing new. It has been used for years. I would guess that Apple brought in engineers with experience in the technology before adding it to the G5.
better safe than sorry
I have the same card in my b/w G3 (love it) - but for the cost involved - a new G5 hard drive and a single firewire cable to transfer all the stuff over from old computer would be a better idea.
Why take the risk?
Just my thoughts.... and my plan....
Apple has some special key command to make the transfer smooth and avoid creating redundancy on new machine.... something like hold down "F" when booting in OS X - can't remember where I read thie Mac Central or here....
IJ
I have the same card in my b/w G3 (love it) - but for the cost involved - a new G5 hard drive and a single firewire cable to transfer all the stuff over from old computer would be a better idea.
Why take the risk?
Just my thoughts.... and my plan....
Apple has some special key command to make the transfer smooth and avoid creating redundancy on new machine.... something like hold down "F" when booting in OS X - can't remember where I read thie Mac Central or here....
IJ
ClarryUK said:Great, thanks again! The ribbon cable is indeed something to consider.
So, I think I've established that PCI-X also supports standard PCI but only 3.3volts, but I can't find any info anywhere to tell me whether my Tempo card is 3.3v or 5v...!
If I'm using it in my B/W G3 does this mean it must be 3.3v?
Sorry if this sounds thick but I'm worried about damaging something if it's not compatible!
Holy Prestone!
did you see the "possible" cooling system on the G5 at appleinsider.com??
The thing looks definitely liquid cooled instead of a heat pipe. Although, it might be a mod-heat-pipe. There are wires going into the central "pump".
But why the cheesy, "automotive-grade" clamps?
Plumbing certification required!
did you see the "possible" cooling system on the G5 at appleinsider.com??
The thing looks definitely liquid cooled instead of a heat pipe. Although, it might be a mod-heat-pipe. There are wires going into the central "pump".
But why the cheesy, "automotive-grade" clamps?
Plumbing certification required!
uzombie said:did you see the "possible" cooling system on the G5 at appleinsider.com??
The thing looks definitely liquid cooled instead of a heat pipe. Although, it might be a mod-heat-pipe. There are wires going into the central "pump".
But why the cheesy, "automotive-grade" clamps?
Plumbing certification required!
For anyone who has not seen the pictures yet, here is a link.
Dual 2.5 ship date changed
My dual 2.5 order (placed on the release date) has changed to "before or by 7/30/04" according to the order status. Not the biggest change but perhaps a sign.
My dual 2.5 order (placed on the release date) has changed to "before or by 7/30/04" according to the order status. Not the biggest change but perhaps a sign.
No more Bad PR for Jobs
Mine date just improved too - but just to be the Negative Nancy here - I bet Stevie Wonder Just noticed this 8/2 date and since he no doubtly does not want any more bad press.... he said it would ship in July... it will ship in July... atleast until July 30th... then it will ship Aug second do to some technological error on the part of Fed Ex. You know sometime things are beyond his control.
- Either way now there is a chance that my MS Office 2004 that arrived today will have a home 72 hours sooner!
Mine date just improved too - but just to be the Negative Nancy here - I bet Stevie Wonder Just noticed this 8/2 date and since he no doubtly does not want any more bad press.... he said it would ship in July... it will ship in July... atleast until July 30th... then it will ship Aug second do to some technological error on the part of Fed Ex. You know sometime things are beyond his control. - Either way now there is a chance that my MS Office 2004 that arrived today will have a home 72 hours sooner! invaLPsion said:As has mine...
Here they come!!!
PowerMacMan said:That liquid cooling on the 2.5GHz looks like something from under the hood of my car
Probably because your car uses liquid cooling.
pjkelnhofer said:
Umm, don't almost all cars use liquid cooling (except some exotic model, I'm sure)?
W
Frohickey said:
No mainstream cars are air cooled anymore. I think noise and emissions regulations around the world put an end to it.
pjkelnhofer said:
Only thing is, the liquid in the pipes, before it passes over the processors and absorbs heat will probably be below ambient temp, as otherwise it wouldn't be a whole lot better than just blowing a fan over it, whilst H2O has better heat capacity than just air, it won't absorb heat at a greater rate unless the temp of the H20 is less than air would otherwise be. The liquid will get below the ambient temp of the case when it is compressed before it passes over the processors, this is the same principle as reverse cycle airconditioners.
Remember if the liquid doesnt get rid of that heat from the processors, and go below the temp of the procs at some stage ( being compressed), it will eventually reach the temp of the procs and make most of the case as hot as the procs, which is far worse than having normal cooling systems.
EDIT: This (as pointed out below) is not correct, apparently the cooling system has no compressor in it, i thought it did, but looks like that is not so. wouldnt be such a silly idea though. If it did they would not have to run the pipes nearly as long to get the heat out of them=smaller, and less heatsinks.
Jusat checking that (thrid party) memory that is advertised to go in the Rev A dual2.0 and dual 1.8 would work in the 2.5GHz.
This is just because there are good deals on memory at the moment and i was wondering if maybe i should buy now and put it in when my 2.5 eventually arrives
This is just because there are good deals on memory at the moment and i was wondering if maybe i should buy now and put it in when my 2.5 eventually arrives
Johnkb said:
You'd have to ask HiRez about that. I was quoting him, but I don't have any more info about it. I hope those problems ARE fixed in Rev. B, for the benefit of those who are buying now.