PowerMac G5 Cooling/Sensor Issues?

[Patchr]

Ya know, I thought the same thing. But these rumor sites are fun to predict stuff, so ya know, enjoy it but take everything with a little salt. ESPECIALLY RUMORS STARTED WITHIN THE FORUMS!

Yeah I get that point, afterall, I visit pretty often myself. It's just that with the impending G5 updates we don't really seem to have any consistent information, which suggests that we don't really have any information.

I remember that before the G5's initial release we had lots of information that was of a similar nature from lots of different rumour sites (and it was from quite early too). We don't seem to have had much accurate 'intelligence' for a while now, so perhaps the sources have dried up? 😉

 

[DWKlink]

Don't know if anyone else noticed...

When i was looking through the specs on the new eMac, it lists an 8x Superdrive... this is the first of its kind for apple, no?

 

[Zaty]

You know what, your dead right! 😀

Yeah, but with hindsight, the eMac update is not a complete surprise, I mean they really had to update it. SDRAM and only USB 1.1 was so 2002. It's intresting though why no rumours have appeared. That's why I said in anohter thread that we would need substantial rumours and not just guessing or dreaming.

 

[uzombie]

emac? more like an emu...

its eCrap.

The history of the eMac is littered with poor quality control. I wouldn't take one even if every G5 purchase came with one free.

And i feel the same about rebates. They should be outlawed.

oops. Wrong forum! 😱

 

[sushi]

Doesn't the introduction of the new eMac prove that most of the rumour sites don't really have any "inside" information. We haven't heard anything recently about an eMac update, nor had we heard anything about iBook G4's prior to their release. Just a thought.

Cha Ching! 🙂

Sushi

 

[klaus]

its eCrap.

The history of the eMac is littered with poor quality control. I wouldn't take one even if every G5 purchase came with one free.

And i feel the same about rebates. They should be outlawed.

oops. Wrong forum! 😱

oh yes, you are soo right 🙂 that's funny if you come to think of it, the 'slowest' model of all the mac computers has the FASTED superdrive.

 

[dex22]

I don't buy it.

This rumor doesn't make sense.

A sensor will detect heat. A processor will make heat. A sensor cannot detect heat more than it is exposed to, and the processor isn't getting hot. No matter how you reposition or wrongly position the sensor, you can only get a false _low_ reading, not a false _high_ one.

It doesn't stand up to scrutiny. This rumor is false.

 

[Evan_11]

no update to imac..

means we might see the iMac G5 soon. There is just too little difference between the iMac and eMac now to justify the price difference. The eMac itself is a nice machine. I checked one out yesterday and the screen is just fine; very clear compared to most crt's that I have seen lately. I think they would sell even better if Apple went back to the different colors.

While the iMac is a sharp looking machine (the store demos don't do it justice, it needs to be seen on a home desktop preferably something Danish or glass) it needs a G5 now. Regardless of the Powermac speed barrier that IBM is currently handling they should put a 2.0 G5 in the 20" iMac. Outfit it with a 120Gb HD and 2 Gb of ram and you'd have a nice 'Anniversary' Mac.

 

[Evan_11]

G5 Thermal Sensors...

are extremely finicky and more complicated than you would imagine. If Apple just cooled the thing like they did with the windtunnel G4's it wouldn't be a problem. However I've heard what a 'windtunnel' G5 sounds like and it is impossible to live with.

No the real problem seems to be IBM's inability to get the G5 past 2 ghz. This might take a re-iteration of the processor which of course will mean that we won't see an update until WWDC.

 

[Dont Hurt Me]

This rumor doesn't make sense.

A sensor will detect heat. A processor will make heat. A sensor cannot detect heat more than it is exposed to, and the processor isn't getting hot. No matter how you reposition or wrongly position the sensor, you can only get a false _low_ reading, not a false _high_ one.

It doesn't stand up to scrutiny. This rumor is false.

what if there are 2 Cpu's under that one heat sink and the Cpu's are cool but the heat sink isnt?

 

[Rustus Maximus]

No the real problem seems to be IBM's inability to get the G5 past 2 ghz. This might take a re-iteration of the processor which of course will mean that we won't see an update until WWDC.

Again...there is no evidence of this and alot of folks are addressing this rumor as though it were fact. There is no proof that IBM can't go beyond 2GHz. That is total hooey. At the worst I think what has happened here are problems with new innovative case design, new innovative cooling systems, etc.. These are problems to be expected I am sure when you are pushing the envelope of industrial design as Apple tends to do.

 

[mrwheet]

Well... my source is pretty good, and he says new G5s are being unveiled at NAB: Dual 2.0, 2.4, 2.6. I think it makes sense. I'd imagine Apple would rather just get new G5s out than wait to deliver on the 3 HGz "promise". The 3 GHz will be a PPC 975 thing, so it will likely show up toward the end of the year. What I'm hoping for are solutions to the noise issues... though it would be nice to see them adopt PCI-Express, since it looks like that's the way the industry's going -- it's been a rumor around the 975-based machines, so, who knows?
I won't, however, be able to resist the dual 2.0 at the entry-level!! At last we'll be squarely beating the wintel world in bang-for-the-buck! Not only that, but I'll have some budget left over for all that RAM... 😉

 

[tsk]

I'm imminently qualified to speak here, having built quite a few $499 PCs in my lifetime... What do you want to know about them? That they require constant end-user maintenance? That they SUCK for today's games? That PC vendors are still selling them with not enough memory and sub-par components? (Have you LOOKED at a $499 PC monitor? Holy Crappola!)

As opposed to the eMac's that ship with enough RAM? Or hell, the PowerMacs for that matter. An $1800 machine selling with 256MB (and no monitor if you want to go there)?

 

[aussiemac86]

Well... my source is pretty good, and he says new G5s are being unveiled at NAB: Dual 2.0, 2.4, 2.6. I think it makes sense. I'd imagine Apple would rather just get new G5s out than wait to deliver on the 3 HGz "promise". The 3 GHz will be a PPC 975 thing, so it will likely show up toward the end of the year. What I'm hoping for are solutions to the noise issues... though it would be nice to see them adopt PCI-Express, since it looks like that's the way the industry's going -- it's been a rumor around the 975-based machines, so, who knows?
I won't, however, be able to resist the dual 2.0 at the entry-level!! At last we'll be squarely beating the wintel world in bang-for-the-buck! Not only that, but I'll have some budget left over for all that RAM... 😉

You will forgive us all of being just a little skeptical at this claim considering all the other rubbish that has come up in forums as of late, do u care to elaborate on who this "pretty good source" is?

also PPC975? I havent heard of that yet, will that still be classified as a G5 or as a G6 perhaps?

 

[mrwheet]

I'm not saying too much... but he's a tech in the post-production world. He's going to NAB, on the company.

The 975 could potentially be called a G6, though they'll probably leave that for the 980.

 

[aussiemac86]

....Intriguing

Well we shall see, ifthey do i will be the first person to place an order on the apple aus site for a dual 2.6, this imac rev b (233) is starting to get really sloooooooww

Also does your source have anything to say about new displays, surely they are due for an update.

 

[mrwheet]

the only other rumor he had was of a hardware device... speculation is on a controller for Final Cut...

 

[ImAlwaysRight]

At least we received an O/S update every year instead of every 3+ years.

Yeah, they have to make money somehow since they aren't making any money on new hardware sales, since new hardware does not exist! 🙁

 

[form]

What about video/audio processing for larger files? And what about 3d? Maybe some of you are content to wait hours or days for big 3d renders, or for large movies to be assembled frame-by-frame, but I'm not. 3d render speed is a choke-hold on creativity for me; the slower it is, the fewer features I can take advantage of, and the less detailed the models will have to be. I want apple to be more competitive in 3d, and I want 3dsmax to come out for mac, along with all the plugins.

 

[dex22]

what if there are 2 Cpu's under that one heat sink and the Cpu's are cool but the heat sink isnt?

How can the heatsink be hotter than the heatsource? Also, Apple has never placed a sensor on a heatsink.

 

[dex22]

Addendum

OK OK! The heatsink CAN be hotter than the source if you use a peltier element to forcibly move the heat. However, Apple don't do this.

 

[form]

I have no problems at all with my G5. Running FCP 4, After Effects, Photoshop, Lightwave 3D. It rips in all of them. Mucho Fast-o.

😀 No complaints here. That sucks about your refurb. 😕

-mark

Lightwave 3d doesn't have any cursor issues, or crashing problems on your g5? That sounds singularly abnormal...What OS version are you running?

 

[Dont Hurt Me]

How can the heatsink be hotter than the heatsource? Also, Apple has never placed a sensor on a heatsink.

easy you have 2 cpus giving off heat so though each processor isnt that hot the heat sink is grabbing heat from both and if the sensor is reading heat sink temp that would explain it. it also would answer why redesign the daughtercard in the first place if its only a die shrink. just grabbing for straws thats all.

 

[wdlove]

Well... my source is pretty good, and he says new G5s are being unveiled at NAB: Dual 2.0, 2.4, 2.6. I think it makes sense. I'd imagine Apple would rather just get new G5s out than wait to deliver on the 3 HGz "promise". The 3 GHz will be a PPC 975 thing, so it will likely show up toward the end of the year. What I'm hoping for are solutions to the noise issues... though it would be nice to see them adopt PCI-Express, since it looks like that's the way the industry's going -- it's been a rumor around the 975-based machines, so, who knows?
I won't, however, be able to resist the dual 2.0 at the entry-level!! At last we'll be squarely beating the wintel world in bang-for-the-buck! Not only that, but I'll have some budget left over for all that RAM... 😉

I'm still not sure that I agree with the upgrade at NAB. If this Rev. B is released at NAB, does that mean that if we purchase a 23" Cinema Display that will still get $500 rebate? Will the memory deal apply to this Rev. B?

 

[JoeG4]

easy you have 2 cpus giving off heat so though each processor isnt that hot the heat sink is grabbing heat from both and if the sensor is reading heat sink temp that would explain it. it also would answer why redesign the daughtercard in the first place if its only a die shrink. just grabbing for straws thats all.

Unlike PowerMac G4s, the PowerMac G5 dual CPU models do not share heatsinks between processors.