Turning Off CPU Cores - Cooler Mac Pro?

Using a Mac Pro in a small room raises the temperature of the room quickly and it is always hot. Does turning off 7 cores (leaving 1 available) using the CPU menubar utility make the computer run cooler? Is there anything else I can do to make the Mac Pro not run as hot?

I hope you didn't think we were being dismissive. I work in a small room on the top floor of a house which even if the house itself and the weather outside are very cool, my Mac room is too hot to stay in. So for me AC and a fan are the only options. The AC for both of us, the fan for the Mac.
I've never heard of someone trying to disable their machine in the way you are wondering about. Perhaps it can be done but just how many CPU's would you have to disable for a heat decrease? And what effect would that have on your overall system, health and performance-wise?
Then what about the heat from your display? That adds in too.
Maybe like me you can't put a regular AC in your window. I had to get something along these lines, which is noisy but works great for my needs:
http://www.nextag.com/everstar-air-conditioner-home-depot/search-html

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Can I turn off XHCI on new Mac PRO?

I am interested to get a new Mac Pro. I am a bit disappointed that there are only four USB3 Ports. I know that there are expansion appliances and devices that will provide a few more. here is my issue, which will determine if I am a buyer:
I will need to turn off XHCI, reverting to USB2, and hopefully on a port-by-port basis. Now before anyone jumps up and tries to tell me that XHCI will support USB2, I can tell you for provable certainty that XHCI is not truly backwards compatible with USB2. USB2 is an emulation under XHCI. There are some devices that will not run under such an emulation. One of them is the Microtelecom Perseus SDR Radio. I am a collector and SWL enthusiast of 35+ year duration. SDR (Software Defined Radio) is the newest, and very exciting development in Radio. Few are made with MAC OS compatibility, so I run them in Virtual Machines, under Parallels. This works handsomely on my Mac Pro 1.1. But my Mac Pro is long in the tooth. I would like to replace it with a new Mac Pro. But only if I can turn off XHCI. Also please do not wax on about how the manufacturers of such devices should upgrade to USB3. That is not an option for radios that were made 10 years ago.
There must be a way to do this. Apple must certainly want to market the Mac Pro to the Scientific Community, many of whom have devices which are USB2, and finicky about their connections.
I would prefer to turn off XHCI on a port-by-port basis, or to find an extension/expansion device that is not a simple passthrough of USB.
I asked this question at the Apple Store here in San Francisco today, and no one had an answer, or knew what I was talking about. My question was escalated twice to supposedly more knowable persons, none of whom had any idea what XHCI is.
Anyone here know?

No response here in 3 days, so no one knows.
I did manage after a few tries to get an Apple Tech on the phone through the Sales Dep't. He said that there is no way in the Mac OS to disable XHCI settings, and while he recognized that PCs offer control through BIOS, that Apple offers no access to BIOS. He said further that one might discover a way through the Terminal app, but that Apple would not support that if done by a user. So I am NOT going to spend $3500+ on a new computer to have to hack it, and put Support and Warranty in jeopardy. No new Mac Pro for me, no sale for Apple. I may look for a refurb or eBay used Mac Pro 3,1-4,1-5,1, where I can drop in a PCIe USB3 card, and have both for my use, as I wish; nine hardware USB ports sounds good to me.

Restricting/ Turning off CPU Cores

Is there any way that i can turn off any number of cores e.g. i want to use 10 cores out of available 32 cores in multicore machine. Is it possible?
Also How can i restrict Java Virtual Machine (JVM) to use only certain number of cores.
Thanks.

You can use psrset to put certain VCPUs into a set that isn't used.
You can use 'prsadm' to disable certain VCPUs.
Just do either of those with the VCPUs that are part of the cores you're interested in. Use 'kstat' cpu information to see which CPUs are part of which cores.
Darren

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My IMac turns off unexpectedly in both Mac & Windows mode. I've repaired disc and permissions using the Snow Leopard install disk and cleared the cache without help. Any ideas how to prevent this?

The HAT test detected no problems. Perhaps one of the peripherals, e.g., the backup disk, is causing the problem. I'll try to run the MAC without peripherals for a few days and see what happens, unless you have other suggestions.
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Cannot turn off streaming radio on mac book pro

cannot turn off streaming radio on mac book pro

You've got it open with some application, either iTunes or in a browser window. Exit out of that application.

I have taken off/turned off iCloud on my mac mini but when I write an email and use contacts it will convert a non iCloud email to and iCloud email automatically. I really don't want this. Any way to stop this automatic conversion?

I have taken off/turned off iCloud on my mac mini (OS 10.8) but when I send an email and use contacts , it will convert the non - iCloud email to an iCloud email automatically. Anyway to stop this automatic conversation?

Robert...
the iCloud webserver wont accept my password for a .mac login, nor will it allow me to change it
See if you can change your password > Apple - My Apple ID
If that doesn't help, launch iTunes on your computer.
From the iTunes menu bar click iTunes / Preferences then select the Advanced tab.
Click: Reset warnings and Reset cache
Click OK.
Restart your computer.
If that that doesn't help...
Moreover, when I try to go into my .mac account on the web,
Delete all apple cookies and empty your browser cache.
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Welcome to Apple Support Communities
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Strange CPU Performance issue Mac Pro, Logic 7.2.3......

Hi there,
I am experiencing a strange issue with Logic 7.2.3 and my Mac Pro.
I am running about 70 tracks in a tune I'm writing, with a lot of the EQ and dynamics processed on a Liquid Mix, but am experiencing a lot of CPU spikes, and drop outs in logic.
The System Performance meters are showing that one of the CPU cores is at full capacity, whilst the Activity Monitor is showing a total usage of about 40%.
http://www.ephexis.co.uk/images/cpu-grab.jpg
I have tried every combination of settings in the audio preferences, but cannot seems to get this track to play properly.
With 71 tracks, this machine is currently LESS powerful than the G5 that I have been working on until purchasing the Mac Pro.
I there anything else I can try? Are there any other means of controlling buffer size?
I have a suspicion that this may have something to do with the Plugin Delay Compensation set to 'All' - But without doing this, I cannot use the DSP effects of the liquid mix to work on a Bus! Very frustrating.
Many thanks for the help, any ideas at would be deeply appreciated,
Adam Ephexis
Mac Pro 2.66, 2GB, 1.5TB -=- MacBook Pro 2.16, 1GB, 100GB Mac OS X (10.4.8) Liquid Mix, Fireface 800, Apogee MiniDAC, Creamware A16 Ultra

Great!
Thanks for the tips guys.
I have tried to find an offending loop or part in the sequence, but cannot find anything at all thats causing the issue.
My suspiscion is that using the focusrite Liquid mix on a part, that is in turn going into a delay compensated bus, which has another Liquid mix plugin on it, is causing the issues. I use the total mix software in the fireface to perform the summing of the busses, which I think in turn may be causing the PDC to glitch a bit more.
Which is a bit annoying, as the mix in this tune is my best yet!
So I will attempt to remove the liquid mixes that are running in series in a chain, and see if thats the problem, but if that fails, time to re-format again!
I'll let you know how I get on in the next couple of days!
Thanks again,
Adam
Mac Pro 2.66, 2GB, 1.5TB -=- MacBook Pro 2.16, 1GB, 100GB Mac OS X (10.4.8) Logic 7.2.3 - Fireface 800, Focusrite Liquid Mix, Apogee MiniDAC, Creamware A16 Ultra

CPU Upgrade - new Mac Pro user

I just bought the new 8-core 2.26
Just a question of curiosity (maybe for my future upgrade)
can I put these into my Mac Pro?
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115201
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115200
also does any of this Graphic Cards work under Mac OS X?
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH &Description=4870&x=0&y=0
I currently have the GT 120. I mostly do 3D modeling and this graphic card seems to do just fine. What I need is fast rendering and the 8-core seems to do the job very well. Now, I just need a graphic card to play game (mostly in Boot Camp of course). But I don't want to switch graphic card just to play game and then switch back to do work (in mac os X).
thanks
Message was edited by: iphongx

The hatter wrote:
Call me lazy, but I really like and prefer when someone has a product idea, to include the name, so I can tell off hand without leaving and visiting.
*Intel Core i7 940 Nehalem 2.93GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366*
Core i7 -
http://en.wikipedia.org/wiki/Listof_Intel_Core_i7microprocessors
Those are not Xeon parts and while part of the whole Nehalem family
http://en.wikipedia.org/wiki/Listof_Intel_Xeonmicroprocessors
(check their heritage out on Intel or Wikipedia) they are Gainestown branch of the family tree.
http://en.wikipedia.org/wiki/Xeon#5500-series_.22Gainestown.22
A good read on Intel Xeon 5500 Gainestown
http://it.anandtech.com/IT/showdoc.aspx?i=3536
Pricing has always been a huge sticking point. Last year Apple charged $500 more for the dual cpu configuration while the cost of adding one later retail was and remained about $900. This year the prices look more like this:
http://www.xbitlabs.com/news/cpu/display/20081118082708Intel_to_Initiate_Shipments_of_Nehalem_Processors_Early_NextYear.html
Surprised you didn't get the Radeon 4870 as $200 BTO option (costs more now to do yourself) and a 1-2GB version seems like it would make a nice offering, now that Nvidia FX cards are MIA.
I would rather get the PC 1Gb 4870 or 4870x2 then flash it for OS X. My current GT 120 is taking care my 3D workflow perfectly now, I wouldn't ask for more. I'm not a gamer, I only play games once in a while when I get stressed out.
It's nice to have a good graphic card handy just to test out new games.
Phong Vu.

The diff between the two 8 core 3Ghz mac pros?

I am in the market for a mac pro. I will spend the money for an 8 core 3ghz cpu. I am a “do it your self” kind of guy. I am not afraid to do some installations myself (drives, Ram, GFX card, optic drive,)
I mainly use CS3, cinema 3D and FCP, On XP, Nuke and Studio Max. Dual displays, One 24” LCD and One CRT.
I have a few basic questions that maybe someone can point me to a link or better explain.
What is the diff between the two mac pros listed below. All I can come up with is the graphics cards and the ram? Is this right?
My plan is to upgrade the ram with the newer 800MHz DDR-2 ram, and graphics card. The stock 7300GT can get me by for now, than something else when the time is right (8800GT, I have not done my homework here, not a priority yet). I do zero gaming and don’t even care to spend money to play games. My priority is not in gaming and I feel a majority of folks are spending the money on the card to play games, so I am trying to find the pros for upgrading in my situation. Better open gl capturing, better graphics acceleration in CS3 better for 3d apps, most likely, but I can survive with the 7300GT for now right? I am fine with that now, but an upgrade in a year or so in the graphics card department is the plan. My priority for the money is order: ram, cpu, drives, Gfx card.
So, recap, what disadvantage would I put myself in for going with the 1st model of mac pro listed below or spend the extra 600 for the second model of macpro? Again, ram will 100% for sure be upgraded as will the hard drives.
Advice please.
Here is a link to the two units I am looking at. It is a 600$ difference.
http://www.macmall.com/macmall/families/new_promo~dp~7445233~family~macpro~promo ~23.asp
http://www.macmall.com/macmall/families/new_promo~dp~7371992~family~macpro~promo ~10.asp

Thanks Twist,
That is very useful info off the top of your head there. I will hopefully find the time this weekend to read through all the info and translate everything suggested from the other reply @ macworld.
If anyone else has any useful info that is clear like twist please give me your suggestions, for now I will read a bit more as suggested.
Thank you.

Time Machine turns itself on after my Mac Pro wakes from sleep (every time)

Hi,
I have a 2009 Mac Pro and it currently has Lion on it (10.7.4), but the problem I am about to explain started when the machine was running Snow Leopard, so it doesn't appear to be an OS-specific issue.
I do not currently use Time Machine, I use Carbon Copy Cloner and some online backup solutions to handle backups. I did use Time Machine for a short time on this machine just after it was introduced, but I didn't end up using it for long and the external drive I used for the backups is no longer in service.
The problem is this:
I have Time Machine off and I have all of my drives (I have 4 drives in my Mac and an external drive) set not to be backed up for good measure. Time Machine will stay off like it should except in one instance. If I put my machine to sleep, when my Mac wakes, Time Machine is instantly turned on and I get a warning telling me no backup drive has been selected and that I should pick one. I go into the Time Machine preferences and turn it off. It will remain off (I've checked the preferences to be sure) until the next time the machine is put to sleep. Time Machine will remain off, even through reboots. It is only waking from sleep that causes this.
I've tried zapping the PRAM, getting rid of the Time Machine preferences and even logging into a new, unused user account and testing it from there and the problem continues. This is really starting to annoy me. I wouldn't mind having TM on, but having to click through the warning every time my Mac wakes from sleep is frustrating.
I don't want to have to buy a new external hard drive and let TM backup to the drive because, as I said, I've got my backup solutions handled already and I'm not willing to put yet more money to use a feature I don't need right now.
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It has been updated with mavericks, but was doing this before the update. It's set to update on a weekly basis, so It should be good in that department.
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Can I turn off the monitor for Mac Mini and use it as a music server?

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I plan to run Logitech Media Server on the Mac to stream music to players. Each player interacts with the Logitech Media Server to select songs to stream. When I turn on a player, it will wake up the computer from the sleep mode.
Currently, this Logitech Media Server runs on a Windows Vista machine and it will keep the PC from entering sleep mode while playing the songs. After I play the last song, the PC will start the idle count down and then enter into sleep mode.
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Turning Off CPU Cores - Cooler Mac Pro?

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