Fan speed questions

I have a few questions about the fans and temperature inside my Mac Pro.
1) what is the temperature sensor labeled "northbridge"?
2) can using a smc control app to up my minimum fan speed and lower component temperatures be beneficial to my machine or I in some way?
When I am using an application like handbrake/mac the ripper to decrypt a DVD it sets all four cores crunching at 99-100%, performance is spectacular but I wonder about heat.
thanks

Intel designs their cpu to protect itself before heat would damage the chip. however the same can't be said for FBDIMMs though there the system would k/p or have parity errors I think.
video cards can die, just from dust preventing air from being drawn into the chamber area.
Disk drives could have a shorter life if they operate above 50º regularly.
but in all scenarios the fans should kick into high gear (1500-2500 rpm) if those sensors are working and exceed safe temperature.

Similar Messages

  • Sorry, another CPU fan speed question.

    Hi,
    Just got a new 2011 iMac 2.5 GHz Intel Core i5 21 inch. First mac and loving it so far! I can hear the fans just slightly at idle in a quiet room and checked on this forum to see what is the normal idle fan speed.
    Most of the results come back with the CPU fan running at around 938 rpm. mine is constant at 1199 rpm. A few others have this speed too, but he majority are around the 938 rpm level (some much higher). My temps also seem lower than most at idle too (due to the higher fan speed i guess).
    OP Drive 998
    HD Drive 1099
    CPU 1199
    My question/s:
    Why the difference between machine (shouldn't they be set the same in all machines with the same spec with software)?
    And is the normal??
    Thx

    Also, would I notice it being quieter with it at 938 compared to 1199?

  • Yes fan speed question again..but with a slight

    I use my new 27" strictly as a monitor (target display mode) for my mac pro.
    The fans all idle while sleeping..upon screen wake after some 15-20 mins the cpu fan slowly creeps up and does so reaching say 1750+ after 50-60 mins...it may get to 2000 or more. All this is with 0% cpu usage and note.. does so by creeping up.The other 2 fans escalate marginally.
    I have done the SMC firmware and SMC reset. I suspect the LCD temp sensor controls the cpu fan ( and possibly the others) as the fan speed does hold or somewhat reduce if I put monitor into a dim state.If I put imac into sleep then wake right away it reverts to a much lesser speed..top left corner of case is virtually untouchable....normal ?
    EDIT:It appears going into tdm may load the imac cpu but I can't determine because it can't be viewed when in tdm...the fan seems to diminish whem the imac is run in imac screen mode...more testing to be done
    Message was edited by: msbeezy

    I was not trying to insult you, but more to break the ice since it felt like you were "talking down" towards me,
    camickr wrote:
    ok, its the second time you recommend to use the key binding, So why are we wasting our time having to recommend it again? You where given the link to the tutorial the other time as well.
    any good explanation as for why? a) you just found a reason
    b) thats why you read the tutorial
    I mean my application is a small 3d game a) what does small or large have to do with anything? The best design is the approach you should use.
    b) how do we know that from the question?
    Our approach is to suggest the best approach that we know. This approach may or may not be appropriate, that is why you read the tutorial and make up your own mind. Of course all Swing components use KeyBindings. Many of them like the text components or JTable will bind 20 different keys. it's not that i didn't take your advice from the first time you gave it, i read the tutorial of both keyListener and keyBinding, and browsed through the documentation of them both, but still a few things were not clear to me as to the efficiency of a wider usage of keys that's all.
    and btw I have the utmost respect to you guys and what you do, and i hope we can still get along, so thank you for your help, i'll menage from here.

  • Fan speed question

    Greetings,
    After having some problems playing watch dogs on pc and looking for solutions on the internet I started to notice that my graphics card was producing alot of heat when i was touching it (my case is open on one side & don't ask why :/ ). I started googling and i came upon MSI Afterburner in which you can manually change the speed of the fan.
    I changed the settings of the fan speed a little bit, but since i'm no expert i wanted to ask how the other pcgamers would handle this 'fan tab', since i'm no expert on pc hardware/software. I did play a bit yesterday with these settings and i did not get a single crash so i think it has worked allready. I noticed that the speed increased as a was playing and i don't think my card does that automaticly when its getting hot.
    I don't care so much about the noise when i'm gaming since i don't pay attention to that (and i could turn the volume up) but i read somewhere that you shouldn't use the fan speed at +70% all the time since it could break sooner.
    Here's an image to show you how i arranged it. Its in dutch but i think everyone will still be able to understand the graph (^_^)
    I'm using an amd radeon hd 7800 card btw.
    Thanks in advance and if you need other information, pls let me know

    Well, touching is not a valid way to check if a card gets too hot but checking temps in load and idle with Afterburner. If you want it to be the coolest possible you can of course use a more agressive fan profile with Afterburner that is active as long as Afterburner runs no matter what program you are using besides (browsing internet, running games or whatever). Fan speed will use the steps you predefinded in Afterburner according to the current temps. Don't woryy higher fan speed will not cause a noticeable limitation of the fans lifespan.

  • IMac (early 2009), 3.06 GHz, ATI 4850 - fan speed and temperature questions

    Well, so I downloaded and installed Temperature Monitor and iMac Fan Control - mainly for observational purposes and not for toying around with the fan speeds and I've got some questions. Mind you, I haven't tampered at all with the fan speed settings, just installed Fan Control. Here are my readings (while browsing the internet with Safari and doing a chat via iChat):
    Fan Speeds:
    CPU fan (desired) 1300 RPM / (current) 1530 RPM
    HD fan (desired) 2100 RPM / (current) 2099 RPM
    DVD fan (desired) 1300 / 1298 RPM
    Temperatures:
    CPU Heatsink: 92°F
    Internal HD: 108°F
    Internal DVD: 95°F
    GPU Heatsink: 107°F
    Are these, under the circumstances, normal readings?
    Thanks in advance for your replies.

    Your welcome and no problem. I would say only the Apple engineers can tell you why the fans are set to those speeds however my best guess is the obvious they found those speeds the closest to keeping the temps at an optimum operating temperature. I found when I'm doing graphics intensive work my machine heats up but quickly cools down when I'm done.

  • HELP - Temp and Fan speed (3500???) questions

    I have 3 questions:
    1) What should be the "normal" CPU temps (idle and loaded), lets say for room temp around 25 C and a normal case, with 1 fan
    2) Can I trust the temperature readings of the mailboard (in Windows)
    3) What should be the normal CPU fan speed, with all Cooln'quiet features off?
    Thanks! Help!

    Quote
    Originally posted by ppeccin
    I have 3 questions:
    1) What should be the "normal" CPU temps (idle and loaded), lets say for room temp around 25 C and a normal case, with 1 fan
    2) Can I trust the temperature readings of the mailboard (in Windows)
    3) What should be the normal CPU fan speed, with all Cooln'quiet features off?
    Thanks! Help!
    1) around 40-55 for load and 28-45 for idle
    2) sometimes, about 70-80 per cent is accurate
    3) about 1000-2000rpm

  • Questions about macbook pro's fan speed

    i'm using a macbook pro early 2008
    and i use istatpro to monitor cpu gpu temp
    1. do the fans work with a min rpm around 2000 all the time?
    2. when i open quite a few apps, mbp get hot, and the gpu temp rises up to 80c degree also cpu temp rises to 60or70c degree. but the fan rpm is still around 2800.
    some guys using macbook/pro confirm that with temp around 80c, their fan has a rpm around 3000or4000.
    does someone else here have this situation above.
    is it normal?
    thanks a lot

    Welcome!
    1) Yes, the default fan speed is 2000 rpm. At that speed they are nearly silent. The speed will increase with temperature. Max revs possible are 6000 rpm.
    2) Notebook computers get hot, regardless of make. The temps you see are reasonable for graphic-intensive applications. The MBP will automatically shut down if the temps get too high; I believe the cutoff point is just over 100°C.
    There are third-party programs that allow you to customize fan settings but they must be used with care. It's possible to overwork the fans by manually setting their speeds too high.
    The best approach is to insure that the MBP gets to use all its built-in cooling capacity. Using the computer on a pillow or blanket is bad; the case bottom dissipates heat but only if air can get under it. Use a lapboard if you must use the computer in your lap.
    Exhaust air emits from the hinge area in the back of the case. make sure nothing blocks the case there or you'll get overheating.

  • Heat questions as well as fan speed on mac pro late 2013

    my temperature currently is 118 running some programs, what number should i be worried about seeing? and does it harm the computer to leave fan speed at maximum or i would guess you would do that when it gets to a certain temp? just wondering what that temp is where i should apply maximum speed to fan

    you want to dig into Intel's TJMax then and even Intel isn't fully forthcoming.
    People run PRIME95, do an Intel stress test (pretty sure that one is Windows only).
    The fans as far as Mac Pro and what I hear just don't kick in until heat builds, and it is easier to boost and improve air flow first, then to push out hot air.
    The buy that develops Hardware Monitor is very much in the know on temperature sensors. And his program will map temps over time, you can set alerts.
    It doesn't take much to see 10-20*C jumps in temps from the smallest action. The 2013 is still new but people have been stressing them and looking to see how much air, how hot the exhaust, and how much noise and active the fan gets.
    http://forums.macrumors.com/search.php?searchid=38709399

  • CPU FAN Speed & Voltages Question?

    I have an MSI KT4 Ultra MB with a retail AMD XP2400 Processor which came with a Fan & Heatsink.
    1. My Temps are fine, gen However my CPU Fan speed varies & I get the following speeds indicated at various times - 4141, 4167, 4116, 4193. Is this OK? I do not believe my Fan speed can be controlled by S/W so I was wonsering why this oocurs?
    2.
    Any advice or comments would be much appreciated! I am a compulsive worrier regarding my PC.
    Cheers

    1. post your PSU brand and amps
    2. get another hsf, these delivered with cpu are not good.

  • Dc5850 cpu fan speeds to top speed sys then shutdown

    I have a Hewlett-Packard HP Compaq dc5850 Micro tower PC, now running windows 7 pro 64-bit. That was new in late 2008. Originally it came with vista 32-bit downgrade able to XP pro 32 bit, running on 2G RAM, and 160G C drive with a 2.30 gigahertz AMD Phenom 8600B Triple-Core processor. It also has ATI 3100 integrated graphics as well as integrated NIC at 1G and integrated High def audio. In the first few months I had the system, I upgraded memory by 4G and total Disc space by 500G by adding a D drive; then upgraded to windows 7 pro 64-bit.
    Overall, I have had a good experience with the PC but it has had problems while in its 3-year warranty. I did need to replace the C drive and later it original RAM devices. Yes HP did these replacements and swaps, under warranty; that meant I had 6G memory for a long time before the HP 2Gig failed out of warranty, leaving me with 4Gig now. Yes I have always had the Unit on an UPS; I even replaced the old UPS with a more powerful unit in late 2009 or early 2010 when the old UPS showed signs of failure. Now instead of serial based UPS connection it is USB.
    Over the last few months I have been getting blue-screen errors of all sorts. Ranging from video related errors, Memory faults, Disc read/write failures and processor flag errors too. After numerous repair disc runs or re-install of windows, the disc read write errors wore corrected by the HP drive sanitation utility disc repair/wipe after failing the extended test. The non video ram was tested by a bootable CD of memtest86 v4 running extended test as well as MS memory Diagnostic. Both run multiple times, both passed multiple times. I was able to find a CD based video diagnostic for ATI and the Video passed repeated stress test as well. Over Labor Day I conducted these test and re-installed windows 64-bit; on the following Monday windows informed me I needed to activate windows, so I verified the correct key and called to do so, successfully.
    With that background given here is the question. Recently over the last two or three months, for no apparent reason, mainly on boot the fan races to top speed and the system shuts down to protect itself. I researched this a little and found one cause to be inadequate airflow over the CPU to keep it cool; the recommendation made sense to vacuum with a computer vacuum and be sure airflow is not somehow obstructed. I am now thinking all these problems are related to the CPU temp sensor. Is it on the CPU fan or the motherboard, and can raising the fan speed in BIOS help prevent the problem, particularly if it on the motherboard.
    John M Gray II

    My pentium 4 3.0c stock Intel fan is 4.44 watts. Isn't the mobo designed for this?
    Also, can the sys fan header have the speed sensor activated by a bios fix or is it a hardware issue where it just does not exist? If hardware, seems strange since Corecell shows sys fan.
    Regards

  • How can I control fan speeds in Win7 on a MBP-R for gaming?

    I have a MacBook Pro with Retina Display. It has had Windows 7 installed and I want to play some 3D action games. How do I stop internal parts from overheating? I intend to use a USB cooling pad but that'll do nothing if the internal fans remain at idle speed.
    The only Windows fan speed control utility I could find was the 4-year old SpeedFan which fails to detect the presence of any internal fans. I'm not impressed with the Windows community's failure to offer more and better than this tired old relic.
    So the questions remain:
    (1) Is the hardware still capable of automatically accelerating the fans as temperatures rise while gaming in Windows?
    (2) What In Windows forces the MBP-R to lock the nVidia GPU into continuous duty and ignores Intel GPU?
    (3) What control does the user have for (2)? 
    (4) How can I protect my MacBook Pro/Retina from overheating while playing PC games, apart from not playing games?

    Moved from the Creative Cloud to the Lightroom forum. They will be able to help you here.

  • Unusual Fan-Speed (up to 6200rpm @ 92°CPU), MBP 2011/ OSX 10.10.2

    Dear Community,
    I've got a problem with my MacBook Pro (late 2011) [2.4 Ghz/ 16GB RAM (upgraded)/ 256 GB SSD (upgraded)/ 500GB HDD (internal, upgraded (instead of DualDrive, iFixit-slot)).
    Since last week I am observing that the fan of my Macbook revs up pretty high and pretty quickly up to 92° CPU temperature @ 6200rpm of the fan according to iStats Pro. This can happen in idle as well as load of any kind. I already cleaned the fan. Never experienced it before. Pretty unusual behaviour.
    Do you have any suggestions/ guesses/ tips/ help for me? Thank you very much in advance.
    Here's a copy of an (Etre)Check that I just recently ran. Hopefully it helps:
    EtreCheck version: 2.1.8 (121)
    Report generated 17 Feb 2015 09:56:42 CET
    Download EtreCheck from http://etresoft.com/etrecheck
    Hardware Information: ℹ️
        MacBook Pro (13-inch, Late 2011) (Technical Specifications)
        MacBook Pro - model: MacBookPro8,1
        1 2.4 GHz Intel Core i5 CPU: 2-core
        16 GB RAM Upgradeable
            BANK 0/DIMM0
                8 GB DDR3 1333 MHz ok
            BANK 1/DIMM0
                8 GB DDR3 1333 MHz ok
        Bluetooth: Old - Handoff/Airdrop2 not supported
        Wireless:  en1: 802.11 a/b/g/n
        Battery Health: Normal - Cycle count 204
    Video Information: ℹ️
        Intel HD Graphics 3000 - VRAM: 512 MB
            Color LCD 1280 x 800
            S273HL spdisplays_1080p
    System Software: ℹ️
        OS X 10.10.2 (14C109) - Time since boot: 0:14:0
    Disk Information: ℹ️
        M4-CT256M4SSD2 disk0 : (256,06 GB)
            EFI (disk0s1) <not mounted> : 210 MB
            Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
            Macintosh HD (disk1) / : 254.87 GB (32.70 GB free)
                Encrypted AES-XTS Unlocked
                Core Storage: disk0s2 255.20 GB Online
        ST9500325ASG disk2 : (500,11 GB)
            EFI (disk2s1) <not mounted> : 210 MB
            Boot OS X (disk2s3) <not mounted> : 134 MB
    USB Information: ℹ️
        Apple Computer, Inc. IR Receiver
        Apple Inc. FaceTime HD Camera (Built-in)
        Logitech USB Laser Mouse
        Apple Inc. Apple Internal Keyboard / Trackpad
        Apple Inc. BRCM2070 Hub
            Apple Inc. Bluetooth USB Host Controller
    Thunderbolt Information: ℹ️
        Apple Inc. thunderbolt_bus
    Gatekeeper: ℹ️
        Mac App Store and identified developers
    Kernel Extensions: ℹ️
            /Applications/Parallels Desktop.app
        [not loaded]    com.parallels.kext.hidhook (8.0 18619.1001606) [Click for support]
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        [not loaded]    com.parallels.kext.netbridge (8.0 18619.1001606) [Click for support]
        [not loaded]    com.parallels.kext.usbconnect (8.0 18619.1001606) [Click for support]
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            /Applications/Tunnelblick.app
        [not loaded]    net.tunnelblick.tap (1.0) [Click for support]
        [not loaded]    net.tunnelblick.tun (1.0) [Click for support]
            /System/Library/Extensions
        [loaded]    com.avira.kext.FileAccessControl (1.0.0d1 - SDK 10.9) [Click for support]
        [not loaded]    com.caiaq.driver.NIUSBMaschineControllerDriver (2.5.2 - SDK 10.7) [Click for support]
        [not loaded]    com.cisco.nke.ipsec (2.0.1) [Click for support]
        [not loaded]    com.maudio.usb.fasttrack.driver (1.8.2) [Click for support]
        [not loaded]    com.native-instruments.driver.NIUSBDeviceHelper (1.0.8) [Click for support]
        [not loaded]    com.wdc.driver.1394HP (1.0.9) [Click for support]
        [not loaded]    com.wdc.driver.1394_64HP (1.0.0 - SDK 10.6) [Click for support]
        [not loaded]    com.wdc.driver.USBHP (1.0.11) [Click for support]
        [not loaded]    com.wdc.driver.USB_64HP (1.0.0 - SDK 10.6) [Click for support]
    Startup Items: ℹ️
        M-AudioFastTrack: Path: /Library/StartupItems/M-AudioFastTrack
        Startup items are obsolete in OS X Yosemite
    Launch Agents: ℹ️
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        [loaded]    com.google.keystone.agent.plist [Click for support]
        [loaded]    com.oracle.java.Java-Updater.plist [Click for support]
        [loaded]    org.macosforge.xquartz.startx.plist [Click for support]
    Launch Daemons: ℹ️
        [loaded]    com.adobe.fpsaud.plist [Click for support]
        [failed]    com.avira.antivirus.dbcleaner.plist [Click for support]
        [failed]    com.avira.antivirus.ipm.loader.plist [Click for support]
        [running]    com.avira.helper.watchdox.plist [Click for support]
        [loaded]    com.google.keystone.daemon.plist [Click for support]
        [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
        [loaded]    com.oracle.java.Helper-Tool.plist [Click for support]
        [loaded]    com.oracle.java.JavaUpdateHelper.plist [Click for support]
        [loaded]    com.sibelius.sari.plist [Click for support]
        [loaded]    com.sibelius.sibelius6.plist [Click for support]
        [loaded]    com.wuala.WualaFS.KextLoaderHelper.plist [Click for support]
        [loaded]    org.cindori.AuthHelper.plist [Click for support]
        [loaded]    org.cindori.TEAuth.plist [Click for support]
        [loaded]    org.macosforge.xquartz.privileged_startx.plist [Click for support]
    User Launch Agents: ℹ️
        [loaded]    com.adobe.AAM.Updater-1.0.plist [Click for support]
        [loaded]    com.adobe.ARM.[...].plist [Click for support]
        [failed]    com.google.GoogleContactSyncAgent.plist [Click for support]
        [loaded]    net.tunnelblick.tunnelblick.LaunchAtLogin.plist [Click for support]
    User Login Items: ℹ️
        iTunesHelper    Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
    Internet Plug-ins: ℹ️
        FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
        Default Browser: Version: 600 - SDK 10.10
        AdobePDFViewerNPAPI: Version: 10.1.13 [Click for support]
        AdobePDFViewer: Version: 10.1.13 [Click for support]
        Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]
        o1dbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
        QuickTime Plugin: Version: 7.7.3
        Scorch: Version: 6.2.0 [Click for support]
        googletalkbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
        SharePointBrowserPlugin: Version: 14.3.9 - SDK 10.6 [Click for support]
        JavaAppletPlugin: Version: Java 8 Update 31 Check version
    User internet Plug-ins: ℹ️
        BlueStacks Install Detector: Version: Unknown
    Safari Extensions: ℹ️
        WOT
        Ghostery
        Blur (Formerly DoNotTrackMe)
        Twitter Disconnect
        Google Disconnect
        Facebook Disconnect
        AdBlock
        JavaScript Blocker
    3rd Party Preference Panes: ℹ️
        Flash Player  [Click for support]
        GPGPreferences  [Click for support]
        Java  [Click for support]
        M-AudioFastTrack  [Click for support]
        Native Instruments USB Audio  [Click for support]
        Xmarks for Safari  [Click for support]
    Time Machine: ℹ️
        Skip System Files: NO
        Mobile backups: OFF
        Auto backup: NO - Auto backup turned off
        Volumes being backed up:
            Macintosh HD: Disk size: 254.87 GB Disk used: 222.17 GB
        Destinations:
            Time Machine [Local]
            Total size: 1.50 TB
            Total number of backups: 14
            Oldest backup: 2014-10-28 14:02:40 +0000
            Last backup: 2015-02-15 19:01:58 +0000
            Size of backup disk: Excellent
                Backup size 1.50 TB > (Disk size 254.87 GB X 3)
    Top Processes by CPU: ℹ️
             8%    WindowServer
             1%    avguard-ondemand-mgmt
             0%    configd
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    Top Processes by Memory: ℹ️
        533 MB    Safari
        412 MB    softwareupdated
        361 MB    savapi
        326 MB    avguard.bin
        206 MB    com.apple.dock.extra
    Virtual Memory Information: ℹ️
        9.62 GB    Free RAM
        4.27 GB    Active RAM
        1.30 GB    Inactive RAM
        1.99 GB    Wired RAM
        2.28 GB    Page-ins
        0 B    Page-outs
    Diagnostics Information: ℹ️
        Feb 17, 2015, 09:45:07 AM    /Library/Logs/DiagnosticReports/NotificationCenter_2015-02-17-094507_[redacted] .cpu_resource.diag [Click for details]
        Feb 17, 2015, 09:44:47 AM    /Library/Logs/DiagnosticReports/rpcsvchost_2015-02-17-094447_[redacted].cpu_res ource.diag [Click for details]
        Feb 17, 2015, 09:41:50 AM    Self test - passed
        Feb 15, 2015, 08:00:51 PM    /Library/Logs/DiagnosticReports/???_2015-02-15-200051_[redacted].cpu_resource.d iag [Click for details]
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        Feb 15, 2015, 05:43:19 PM    /Users/[redacted]/Library/Logs/DiagnosticReports/Finder_2015-02-15-174319_[reda cted].crash
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        Feb 15, 2015, 11:23:05 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_20 15-02-15-112305_[redacted].crash
        Feb 15, 2015, 11:03:59 AM    /Library/Logs/DiagnosticReports/openvpn_2015-02-15-110359_[redacted].crash
        Feb 14, 2015, 03:43:48 PM    /Library/Logs/DiagnosticReports/???_2015-02-14-154348_[redacted].cpu_resource.d iag [Click for details]
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        Feb 14, 2015, 03:38:55 PM    /Library/Logs/DiagnosticReports/mdworker32_2015-02-14-153855_[redacted].crash
        Feb 14, 2015, 03:38:45 PM    /Library/Logs/DiagnosticReports/mdworker32_2015-02-14-153845_[redacted].crash
        Feb 14, 2015, 03:38:35 PM    /Library/Logs/DiagnosticReports/mdworker32_2015-02-14-153835_[redacted].crash
        Feb 14, 2015, 10:36:31 AM    /Library/Logs/DiagnosticReports/openvpn_2015-02-14-103631_[redacted].crash

    Thank you very much for your answer, OGELTHORPE.
    I actually did reset the SMC several times the last few days and also observed unusual behaviour by the use of the Activity Monitor – with no result.
    The CPU temperature as well as the fan speed can be at a top level without many processes at all. Happened right before I posted my question just after the last start of the system. Of course it also happens when I run a whole bunch of applications, but even in that case it differs. Sometimes it goes up, sometimes it's totally normal. That's why I called it "unusual".
    Any further ideas besides the SMC reset?

  • Z87-G45 Fan Connection Questions

    Greetings,
    I wanted to ask about connecting my Corsair liquid cooler.  I'm using 2 radiator fans in a push-pull config, plus the cooler itself needs power.  The Z87-G45 has 2 cpu fan connectors.
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    Last edited by Malstrond (2009-08-19 19:34:22)

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