CoolBookController
CoolBookController
2.22

3.8

HomeSystem UtilitiesSystemCoolBookController
CoolBookController free download for Mac

CoolBookController2.22

24 February 2011

Monitor CPU frequency, voltage, and temperature.

Overview

CoolBook lets you monitor CPU frequency, voltage, and temperature.

Registered users may set voltage and frequency manually. This can dramatically reduce heat dissipation and fan noise.

Use your MacBook with full performance without a battery installed.

Storing your battery properly when not used will reduce battery aging.

What's new in CoolBookController

Version 2.22:
  • Fixed an issue causing some Penryn models to report wrong frequencies.
  • Fixed an issue with the temp limit.

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How would you rate CoolBookController app?

37 Reviews of CoolBookController

Bluloo
06 June 2009
Version: 2.14

Most helpful

Buy new hardware? Want to reinstall your registered coolbook app? The developer will tell you you're out of luck. Neat little app but the dev says registration is only good for a specific machine. You have to pony up more $$ for another license. Lame policy for an otherwise useful app.
(8)
0.5
mmartinez74
19 April 2012
Version: 2.22
Where is the LION support! Why won't you even answer folks who ask about when you will update the code to function on Lion. It looks like I am not the only one that could never get a response back from the developer. - Frustrated!
(1)
Show comment (1)
2
Aymen
05 August 2011
Version: 2.22
Does what the developer says on his website... Never expect to hear anything from him after sending your license ! Yes, I recommend this app if you know what you are doing. Don't expect any help or support from the developer. You are on your own.
(2)
Aymen
30 July 2011
Version: 2.22
Found the solution for Lion compatibility : Here: http://roaringapps.com/app:255 I hope it helps. CoolBook works great for me now
(0)
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5
Howiemac
25 July 2011
Version: 2.22
Works spectacularly well when you FOLLOW THE INSTRUCTIONS and set up the voltage and frequency settings well. It has saved me from upgrading my MBA-revA and therefore saved me from upgrading and spending many dollars! It prevents my MBA-A from climbing up to 100C, keeping it cool down to 75C max with power savings and hence battery savings such that after 650+ cycles still has 88% health. (The 12% loss is probably due to me keeping it plugged in AC all the time). I can comfortably keep it on my lap and even reduce the temps further down if I find it too much on my legs. It extends the battery range very well; it IS, without a doubt, the BEST $10 I have spent on anything to do with an Apple. As for all those whiners complaining about the TOS - Harden up, princesses. You pay for a $1000+ machine that rocks yet complain about a $10 app that literally saves it from losing a core; preventing it from becoming half of what it's worth; get real. The pitiful $10 asked for this app is basically a donation! It is really worth $50 for what it does. The TOS is there so that it doesn't cost $50; the licensing server prevents pirates from ripping it off. Kudos to the Marcus (the developer) for sticking to the TOS. I've asked for help before on some licensing problems when updating & purchasing another license for my MBP 2007 and I've received it. Marcus is likely a one-man team - come-on, he's got a life too you know! Sometimes what you need to do is RTFM. There are countless webpages floating around that will help you get there. I would probably only offer a couple of suggestions: 1- Make the app work in such a way so that the finding of VF pairs is almost automatic; with the user only needing to HARD-RESET to continue the next test when the kernel panics. 2- Please make it work for OS X LION. My MBA-A is DYING as I speak (and typing this). Oh how good Coolbook is - I'd pay $5 in a sneeze to get it working again. Please let me know mate, I know you're probably hard at work finding a way... Else it's gonna be a new MBA for me. (See? $5 can potentially save me $1000)
(3)
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Aymen
22 July 2011
Version: 2.22
Does the developer answer any email for support ? I've been emailing the guy all day long. So now I bought CoolBook after upgrading to Lion, and it's not working ! Do I have to pay to upgrade ? I just can't get the guy to answer any of my emails !
(0)
ichimj
19 June 2011
Version: 2.22
When I installed it, it said it couldn't find a driver. As a result, the right side of the window is greyed out, I can't adjust anything.
(0)
4.5
Itty
28 February 2011
Version: 2.22
I have been a happy customer with 2 licenses. It has been a stable app that truly prolongs battery life. I use it in conjunction with SmcFanControl. This latest version still lists incorrect CPU speeds on both, my MacBook2,1,[Merom] and my MacBookPro4,1.[Penryn]. Both units running 10.6.6 Hopefully these older Intel units will continue to receive support. I'd hate to loose the functionality that Coolbook provides. My 2006 MacBook Battery still holds a 3.5 Hr. charge after 5 years of continuous [24/7] runtime, thanks to CoolBook.
(1)
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0.5
DRHL
19 February 2011
Version: 2.21
As mentioned, licensing terms are appalling and ridiculous. What a shame... stay away!
(2)
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1
Sorenjorvang
25 January 2011
Version: 2.20
The license terms and customer service are atrocious. When I bought the license in 2006, the terms simply said "for one computer", which isn't too unusual and is usually interpreted to mean some form of "one computer at a time". Since then, the author has retroactively changed the license terms so that only the serial number of the originally registered machine is accepted. He now refuses to allow me to register the program on a different machine! Avoid!
(2)
4
niewiesznic-1
27 December 2010
Version: 2.20
Love this app, but licensing terms for computer instead for a person is kinda irritating. The process of setting voltages could be automatic ( I don't know if its possible). Anyway, as I have mentioned before : I love this app, i have underclocked three computers and its working great.
(0)
Bluloo
10 November 2010
Version: 2.20
This is why I stopped using it as well. The licensing terms are terrible, especially for a small developer. Too bad.
(1)
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Bob-Wilson
28 August 2010
Version: 2.18
Coolbook is a handy (if sometimes troublesome) piece of software brought to it's knees by the most draconian licence terms I've seen! "This license will work with one unique computer only. The customer is allowed to reset the license once. This in the event of broken and repaired computer. It is not possible to transfer the license to a new computer." This makes Adobe and their much criticised activation terms of their Creative Suite look like Santa Claus. I sympathise will developers who put a lot of time and effort into writing and supporting applications and wish to make some money from it without it being being posted to every torrent site imaginable. This developer, IMHO, simply goes to far though and appears to view everyone as a potential copyright infringer. Therefore I, for one, will not be parting with my cash under these terms.
(4)
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anonymous-thrush-1175
07 July 2010
Version: 2.17
Coolbook doesn't work with SL 10.6.4. Any plans for an update soon?
(1)
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Bdonegan
24 June 2010
Version: 2.17
Does anyone know when a version with support for 10.6.4 will be out? I always wait for Coolbook to be updated before I upgrade. 1st gen Intel Macbook Pro.
(0)
Drscott
22 April 2010
Version: 2.17
CoolBook crashes on my Mac (Mac OS 10.6.3). I tried contacting the author on April 4 and again on April 7. I received no reply.
(0)
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Danila-Piatov
07 April 2010
Version: 2.17
CoolBook 2.17 doest work for me on 10.6.3. More info: http://forums.macrumors.com/showthread.php?t=885763
(2)
Thanar
14 March 2010
Version: 2.16
CoolBook is -in my opinion- a MUST HAVE for every MacBook / MacBook Pro owner. I have installed it on 3 MacBooks until today and must admin that I am completely satisfied by this utility. More than +30% battery life on all of my MacBooks, as well as MUCH cooler running temperatures; oh, and almost NO fan noise anymore. Will definitely test it on a couple of iMacs I am waiting to be shipped as well...
(0)
5
Spoken
27 August 2009
Version: 2.15
Coolbook made my first generation Macbook Air usable! I was running WinXP under VMWare, and before CoolBook, this configuration came crawling to an overheating near standstill... I had concluded that the Air was pretty much unusable for my needs. After installing and configuring Coolbook, the Air performs very well in this configuration - and amazingly, the processor seems to thrive on the minimum settable voltage at every possible clock speed. $10 saved my MacBook Air. So what if it's locked to a specific computer? It's $10. Buy it again for the next laptop.
(2)
Trondah
05 August 2009
Version: 2.14
Does not work in latest Snow Leopard seed. Kext does not load in 64 bit mode. It loads in 32 bit but kextcache parameters changed, complains about wrong arguments in the logs.
(1)
Show comments (3)
Bluloo
06 June 2009
Version: 2.14
Buy new hardware? Want to reinstall your registered coolbook app? The developer will tell you you're out of luck. Neat little app but the dev says registration is only good for a specific machine. You have to pony up more $$ for another license. Lame policy for an otherwise useful app.
(8)
Show comment (1)
5
Mholliday84
10 May 2009
Version: 2.14
My Macbook Air would always get really hot, and the video would start skipping when watching shows on ABC.com. With Coolbook, I was able to reduce the temperature of the core so that it wouldn't shut down and mess up my stories. used 0.9 V for all except 1600 MHz, for which I used 0.95 V. This software did exactly what it was supposed to. I have a feeling that the reason some others didn't get as good of results as I did, is that they either don't know how to use the software, or they don't have their laptop on a flat surface. Remember that temperature transfers fastest from solid to solid vs. solid to air. My in-table for instance acts as a heat sync.
(1)
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Pen-sq
02 March 2009
Version: 2.13
The 2.13 update is severely broken on my 2007 white MacBook (with i950). The first hint is when it is required to redo registration. After that, my voltage settings were lost. After rediscovering and entering the voltages, I didn't see Coolbook do anything useful with them. I uninstalled and went back to version 2.12.
(0)
5
Mickfish
21 January 2009
Version: 2.12
I've been using CoolBook for a couple of weeks & I'm very happy with it. Straightforward & clearly explained. Did exactly what it said it would with the minimum of fuss & effort - what more could you want? Worth the money? Definitely. Can't really answer for stability but I'm pretty confident judging by results so far.
(2)
Sampler
05 December 2008
Version: 2.10
CoolBook does much more than fan control. It can be used to decrease voltage, at no cost to processor speed, and thus it can reduce power consumption and heat. It looks like a must for the new MacBooks. See: http://www.edn.com/blog/400000040/post/1890037389.html
(2)
5
Drdul
06 June 2008
Version: 2.9
Great app! Installed this on my Mac mini (FWIW, my settings are 1670 MHz/0.95 V and 2004 MHz/1.00 V). Temperatures used to hit 70 degrees Celsius for no apparent reason, and now remain in the mid-40s.
(1)
4
Jkahan
26 March 2008
Version: 2.8
Excellent product. I just installed it on my Macbook Air and no longer have heat or core shutdowns. Search the posts on macrumors for "underclock" and there is a good thread comparing everyone's coolbook settings. The GUI could use some work though....
(1)
Thanar
12 February 2008
Version: 2.6
Looks like Coolbook throttling is broken under newest Mac OS X 10.5.2, although it used to work fine under 10.5.1.
(1)
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Jetfiredx
02 November 2007
Version: 2.5
Wouldn't install the driver on Leopard. I have the last version of the controller on the system from upgrading with migration assistant, but the last driver is not there since I formatted and started a clean install.
(0)
5
Tomasx
28 September 2007
Version: 2.3
This app is well worth the tiny price. I have used it for almost a year now with a 17" Macbook pro (core 2 duo). The default settings left it running fairly hot, but after spending 20 minutes figuring out the minimum voltages needed per frequency I had some settings that have been totally stable. When you're on battery you get much better performance and use less energy, by setting the voltage to the minimum but the frequency to the max that voltage can power (for me this was almost double the CPUs normal minimum). and for desktop work you can use the max CPU speed with a big cut in power, meaning less heat and nose from fans. In case it helps someone out, my settings turned out to be; 1837MHz-0.95V, 2004Mhz-0.9625V, 2171Mhz-1V, 2338Mhz-1.05V.
(1)
reaperhulk
27 July 2007
Version: 2.3
I purchased this today after I was informed by the developer that the latest version supported Santa Rosa based MBPs. My settings ended up being 0.85v for 1200mhz, 0.90v for 1600mhz, 0.925v for 2000mhz, and 1.0625v for 2400mhz. Not too bad!
(0)
Jetfiredx
26 July 2007
Version: 2.3
Just registered today after reading the good reviews and wanting my MacBook to run cooler. Working well with my first level of undervolting. For $10 it seems to be well worth giving a shot. A few small suggestions: Would it be possible to have the ability to remove a single Frequency / Voltage pair from the lists? As it is, if you add the wrong values you have the clear the entire list and add them all again...a bit of a pain and I did this several times today messing with the settings. Second, tying in the ability to control the fan speed would be handy too. I always thought the fans kicked up too slowly on my MacBook, letting the heat build up more than it needed to. Having an option of setting minimum fan RPM per frequency would be nice because when I am running at full speed the fans could go faster before the temperature would normally tell them to kick up.
(0)
5
eric-petit
10 July 2007
Version: 2.2
Worth the $10 I have been using it for several months, my MBP CoreDuo 2Ghz is stable with the minimal voltage (0.95V) at 1000-1670Mhz, 0.9875V at 1837Mhz and 1.0625V at 2000Mhz - which makes it sensibly cooler. Coolbook is also essential if, like me, you often use your MBP without the battery : Apple's defaults then limit the CPU at 1Ghz, while Coolbook will let you use any frequency. One small feature request: I usually let it throttle within 1000-1670Mhz when I am on battery, except when I really need the longest battery life (like on the train) and keep the CPU at 1Ghz. It would be handy to be able to define presets so that I can easily switch between those two settings.
(0)
4
Bob-tm
24 March 2007
Version: 2.0
I upgraded my Mac Mini 1.5GHz Core Solo to a 2GHz Core 2 Duo (T7200) and the CPU got quite hot (reaching 87-88+ C during 100% load on both cores) and activated the fan control mechanism causing more fan noise. After installing this utility I managed to get a stable voltage of 1.0126V and reduced this maximum to around 75 C and the fan speed remained on the default value throughout my testing. On the downside, the program GUI needs some work to be intuitive (at least for me) and the documentation improved. Fan speed information (maybe even load information on each core) and title bar display would give this gem a 5 star across the board. I recommend this highly for anyone with Core 2 Duo on the Mac Mini and would guess that it would be of value to any Mac Mini user who wants little fan noise.
(0)
Sosa11
28 December 2006
Version: 1.1
On my Win laptop i used RMClock and found it very useful. I am glad that somebody makes an effort to migrate it to mac. I was especially looking for the dinamic clocking-undervolting feature and glad that the developer (Magnus) succeed to implement it. I am using for a week now and my MBP runs cooler and longer on batteries without performance sacrifice. Very useful little tool!
(0)
5
Macbpuser
28 December 2006
Version: 1.1
I've been using coolbook for one month, and I'm very pleased with it. At first I did not know how to setup the program for the best effect, I just locked the CPU at the lowest frequency. This made the computer run cooler and I got more battery time. Then I talked to the developer of coolbook, and he suggested setting the highest stable frequency for the lowest voltage. For my macbook this is 1.67Ghz at 0.95v. This is one step from the highest frequency setting at the lowest voltage setting! 1.83Ghz 1.2625v is the highest stock setting for my macbook. I now run it locked at 1.6Ghz 0.95v for battery and 1.83Ghz 0.9875v for AC. This keeps my macbook cool and quiet. I know there is a beta version of coolbook that allows dynamic switching, but I have not tested that one. I'm happy with my setup. I have not had any problems with stability. The value of this product is great, the added battery life alone is worth more than $10 for me. The support is very good. The author replies very fast.
(0)
Delarue
24 November 2006
Version: 1.1
This is not shareware as it is not possible to use the programs functionality before buying a license. Without registering, all controls are disabled and only the current CPU frequency, voltage and temperature are shown.
(1)
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Undervolter
31 October 2006
Version: 1.0
Finally! I have been looking for a app like this. I used to undervolt my notebooks in windows to reduce power consumption, and have missed this type of app in OS X.
(0)