735 iPhone_iPad_Mac_apple

High GPU diode temp and high fan RPM

Ever since updating to high sierra recently (I know, slow adopter), I noticed increased high fan usage and high gpu diode temperatures when browsing some web pages. io9 pages can push the gpu diode to 95c with associated high fan rpms (2500 rpm). When I check the activity monitor, there's no CPU load over 5 to 10%.

Specifically I'm running:

OS 10.12.6

iMac retina 27" (late 2014)

4Ghz intel core i7

16GB memory

AMD radeon R9 M295X with 4GB

I've reset the pram and SMC (multiple times in a session to make sure it took)

One thing I know for sure, it wasn't operating like this under sierra.

Any thoughts or ideas would be most appreciated

David,

HS will not make any changes that would cause this behavior. I'd recommend following the instructions below.

Please post an EtreCheck report of your system. We can then look for obvious issues. Please click the link, download the app and run the report. Once you have the report, please copy and paste it as your reply to this post.

Thanks RK...

EtreCheck version: 3.4.5 (455)

Report generated 2017-10-05 16:20:09

Download EtreCheck from https://etrecheck.com

Runtime: 2:06

Performance: Excellent

Click the [Lookup] links for more information from Apple Support Communities.

Click the [Details] links for more information about that line.

Click the [Clean up] link to delete unused files.

Problem: Other problem

Description:

HIgh GPU diode and high fan useage

Hardware Information: ⓘ

iMac (Retina 5K, 27-inch, Late 2014)

[Technical Specifications] - [User Guide] - [Warranty & Service]

iMac - model: iMac15,1

1 4 GHz Intel Core i7 (i7-4790K) CPU: 4-core

16 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

4 GB DDR3 1600 MHz ok

BANK 1/DIMM0

4 GB DDR3 1600 MHz ok

BANK 0/DIMM1

4 GB DDR3 1600 MHz ok

BANK 1/DIMM1

4 GB DDR3 1600 MHz ok

Handoff/Airdrop2: supported

Wireless: en1: Unknown

iCloud Quota: 5.00 GB available

Video Information: ⓘ

AMD Radeon R9 M295X - VRAM: 4096 MB

iMac 5120 x 2880

Disk Information: ⓘ

APPLE SSD SD0128F disk1: (121.33 GB) (Solid State - TRIM: Yes)

[Show SMART report]

EFI (disk1s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

(disk1s2) <not mounted> [CoreStorage Container]: 120.99 GB

Boot OS X (disk1s3 - Journaled HFS+) <not mounted> : 134 MB

APPLE HDD ST1000DM003 disk0: (1 TB) (Rotational)

[Show SMART report]

EFI (disk0s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

(disk0s2) <not mounted> [CoreStorage Container]: 755.56 GB

Recovery HD (disk0s3 - Journaled HFS+) <not mounted> [Recovery]: 650 MB

Big Boy (disk0s4 - Journaled HFS+) /Volumes/Big Boy : 243.65 GB (148.89 GB free)

USB Information: ⓘ

USB30Bus

Newer_Technology miniStack

chnology disk3: (2 TB)

EFI (disk3s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

Time Machine (disk3s2 - Journaled HFS+) /Volumes/Time Machine : 1.50 TB (279.14 GB free)

Space (disk3s3 - Journaled HFS+) /Volumes/Space : 497.71 GB (413.40 GB free)

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. FaceTime HD Camera (Built-in)

hub_device

Apple, Inc. Keyboard Hub

Logitech Logitech USB Headset

Apple Inc. Apple Keyboard

Thunderbolt Information: ⓘ

Apple Inc. thunderbolt_bus

Virtual disks: ⓘ

Mongo (disk2 - Journaled HFS+) / [Startup]: 870.70 GB (442.60 GB free)

Physical disk: disk1s2 120.99 GB Online

Physical disk: disk0s2 755.56 GB Online

System Software: ⓘ

macOS Sierra 10.12.6 (16G29) - Time since boot: about one day

Gatekeeper: ⓘ

Mac App Store and identified developers

Clean up: ⓘ

~/Library/LaunchAgents/com.apple.MobileMeSyncClientAgent.plist

/System/Library/PrivateFrameworks/DotMacSyncManager.framework/Resources/mobilem esyncclient --sync --periodic

Executable not found!

One orphan file found. [Clean up]

Kernel Extensions: ⓘ

/Applications/Radio Silence.app

[not loaded] com.radiosilenceapp.nke.filter (1.0 - SDK 10.7) [Lookup]

/System/Library/Extensions

[not loaded] com.ATITechnologiesInc.TVOut (2.4.0) [Lookup]

[not loaded] com.Symantec.kext.DeleteTrap (8.0.2) [Lookup]

[not loaded] com.Symantec.kext.KTUM (9.0.1) [Lookup]

[not loaded] com.Symantec.kext.SymEvent (1.0.4) [Lookup]

[not loaded] com.Symantec.kext.SymOSXKernelUtilities (2.0) [Lookup]

[not loaded] com.symantec.kext.symfs (8.0.1) [Lookup]

System Launch Agents: ⓘ

[not loaded] 7 Apple tasks

[loaded] 166 Apple tasks

[running] 112 Apple tasks

System Launch Daemons: ⓘ

[not loaded] 41 Apple tasks

[loaded] 173 Apple tasks

[running] 104 Apple tasks

Launch Agents: ⓘ

[not loaded] com.adobe.AAM.Updater-1.0.plist (Adobe Systems, Inc. - installed 2014-12-15) [Lookup]

[loaded] com.adobe.CS4ServiceManager.plist (? 70f708f7 c1ab4162 - installed 2014-12-06) [Lookup]

[loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2017-07-10) [Lookup]

[loaded] com.oracle.java.Java-Updater.plist (? 3762e6a9 72ac4dde - installed 2017-07-31) [Lookup]

[loaded] com.radiosilenceapp.agent.plist (? d3b2fc0c 31173834 - installed 2014-12-14) [Lookup]

[loaded] com.xrite.device.softwareupdate.plist (X-Rite, Incorporated - installed 2016-10-22) [Lookup]

[loaded] org.macosforge.xquartz.startx.plist (Apple Inc. - XQuartz - installed 2014-08-11) [Lookup]

Launch Daemons: ⓘ

[loaded] com.adobe.SwitchBoard.plist (? 68cad67 0 - installed 2014-12-14) [Lookup]

[loaded] com.adobe.fpsaud.plist (? 2afb3af7 4898e928 - installed 2017-08-29) [Lookup]

[not loaded] com.apple.installer.cleanupinstaller.plist (? ? ? - installed 2017-08-12)

[loaded] com.google.keystone.daemon.plist (Google, Inc. - installed 2017-07-26) [Lookup]

[loaded] com.microsoft.autoupdate.helper.plist (Microsoft Corporation - installed 2017-04-18) [Lookup]

[loaded] com.microsoft.office.licensing.helper.plist (? 6d8cb30e cf9ce3fb - installed 2014-02-26) [Lookup]

[loaded] com.oracle.java.Helper-Tool.plist (Shell Script e3fefdd2 - installed 2017-07-22) [Lookup]

[failed] com.radiosilenceapp.nke.plist (Apple, Inc. - installed 2017-07-15)

[running] com.xrite.device.xrdd.plist (X-Rite, Incorporated - installed 2015-09-18) [Lookup]

[loaded] org.macosforge.xquartz.privileged_startx.plist (Apple Inc. - XQuartz - installed 2014-08-11) [Lookup]

User Launch Agents: ⓘ

[loaded] com.adobe.ARM.[...].plist (? 56ebbe7d b8887e79 - installed 2013-05-22) [Lookup]

[failed] com.apple.MobileMeSyncClientAgent.plist (? ? ? - installed 2011-04-07) - /System/Library/PrivateFrameworks/DotMacSyncManager.framework/Resources/mobilem esyncclient: Executable not found!

[failed] com.apple.SafariBookmarksSyncer.plist (? ? ? - installed 2010-05-13)

[loaded] com.bluejeans.app.detector.plist (Shell Script 69999cc8 - installed 2017-10-04) [Lookup]

[loaded] com.citrixonline.GoToMeeting.G2MUpdate.plist (Citrix Online LLC - installed 2016-07-20) [Lookup]

[loaded] com.dropbox.DropboxMacUpdate.agent.plist (Dropbox, Inc. - installed 2017-08-10) [Lookup]

[loaded] com.skype.skype.shareagent.plist (Skype Communications S.a.r.l - installed 2017-10-04) [Lookup]

[loaded] com.valvesoftware.steamclean.plist (? b38a215c f2e42815 - installed 2010-12-28) [Lookup]

User Login Items: ⓘ

FaceTime Application

(/Applications/FaceTime.app)

AdobeResourceSynchronizer Application

(/Applications/Adobe Acrobat 8 Professional/Adobe Acrobat Professional.app/Contents/Support/AdobeResourceSynchronizer.app)

com.adobe.SwitchBoard.monitor.plist MachInit - Hidden

(/etc/mach_init_per_user.d/com.adobe.SwitchBoard.monitor.plist)

Mach Init items are deprecated

Internet Plug-ins: ⓘ

o1dbrowserplugin: 5.41.3.0 (installed 2016-02-19) [Lookup]

Flip4Mac WMV Plugin: 2.3.1.2 (installed 2009-11-03) [Lookup]

Silverlight: 4.0.60831.0 (installed 2011-11-22) [Lookup]

FlashPlayer-10.6: 27.0.0.130 (installed 2017-09-16) [Lookup]

DivXBrowserPlugin: 1.4 (installed 2008-01-07) [Lookup]

QuickTime Plugin: 7.7.3 (installed 2017-07-15)

Flash Player: 27.0.0.130 (installed 2017-09-16) [Lookup]

googletalkbrowserplugin: 5.41.3.0 (installed 2015-12-11) [Lookup]

SharePointBrowserPlugin: 14.7.3 (installed 2017-04-18) [Lookup]

AdobePDFViewer: 10.1.1 (installed 2014-12-14) [Lookup]

iPhotoPhotocast: 7.0 (installed 2010-03-30)

ContentUploaderPlugin: 1.2 (installed 2008-01-07) [Lookup]

JavaAppletPlugin: Java 8 Update 144 build 01 (installed 2017-07-31) Check version

User internet Plug-ins: ⓘ

CitrixOnlineWebDeploymentPlugin: 1.0.105 (installed 2013-05-14) [Lookup]

Move_Media_Player: npmnqmp 071101000050 (installed 2008-09-11) [Lookup]

WebEx64: 1.0 (installed 2016-02-28) [Lookup]

3rd Party Preference Panes: ⓘ

Flash Player (installed 2017-08-29) [Lookup]

Java (installed 2017-07-31) [Lookup]

Time Machine: ⓘ

Skip System Files: NO

Mobile backups: OFF

Auto backup: YES

Volumes being backed up:

Mongo: Disk size: 870.70 GB Disk used: 428.10 GB

Space: Disk size: 497.71 GB Disk used: 84.30 GB

Destinations:

Time Machine [Local]

Total size: 1.50 TB

Total number of backups: 253

Oldest backup: 7/2/13, 11:23 PM

Last backup: 10/5/17, 4:03 PM

Size of backup disk: Too small

Backup size 1.50 TB < (Disk used 512.40 GB X 3)

Top Processes by CPU: ⓘ

10% WindowServer

4% mdworker

3% kernel_task

2% mdworker

1% quicklookd

Top Processes by Memory: ⓘ

1.41 GB kernel_task

907 MB SketchUp

601 MB mds_stores

314 MB Finder

287 MB Dock

Top Processes by Network Use: ⓘ

Input Output Process name

24 MB 85 KB com.apple.WebKit.Networking

250 KB 116 KB mDNSResponder

143 KB 206 KB Skype

10 KB 15 KB apsd

14 KB 5 KB imagent

Top Processes by Energy Use: ⓘ

8.54 xrdd

7.42 WindowServer

2.26 com.apple.WebKit.WebContent

1.18 coreaudiod

Virtual Memory Information: ⓘ

8.43 GB Available RAM

1.88 GB Free RAM

7.57 GB Used RAM

6.56 GB Cached files

0 B Swap Used

Software installs: ⓘ

Adobe Flash Player: (installed 2017-09-16)

GoPro VR Player 3.0: (installed 2017-09-21)

Autodesk AutoCAD LT 2017 for Mac: (installed 2017-09-22)

Cobalt v9 SP0: (installed 2017-09-28)

EPSON Scan: (installed 2017-09-29)

Install information may not be complete.

Diagnostics Information: ⓘ

2017-10-04 19:08:16 com.apple.WebKit.WebContent High CPU use [Open] [Details]

2017-10-04 13:22:32 Firefox.app High CPU use [Open] [Details]

David,

Your system does have some problems I will list them for you.

First, I want to point out that Mac OS was designed from it's very beginnings to be EXTREMELY secure. I suspect you may have come from a MS Windows machine where using Antivirus software is the norm. With a Mac they are 100% unnecessary and most cases they tend to create more problems than they solve. You have one of the worst offenders (Symantec) installed. I recommend locating the uninstall procedures from the developers and uninstall your Symantec AV immediately. Never install any AV, cleaning, or any other third party maintenance apps on a Mac. At best they are unnecessary and at worst they can damage Mac OS.

Next, over the years you have installed a number of Internet Plugins, I suspect many are not necessary and should be uninstalled. Please look over your report for what you have installed and decide what can go. Instructions for removing them are in Safari 8 (Yosemite): If you need to remove a plug-in

You also have an orphan file, please review your report and click the link to remove it.

Once you have done all of the above restart the computer in Safe Mode to clear the caches. Then reset the SMC and PRAM while ALL peripherals (EHDs, scanners, printers, etc..) are disconnected. This only applies to USB, Firewire and other cable connected devices. After the resets have been done you can re-connect each.

Then check to see how your computer is now operating.

Many thanks RK for having a look!

I shocked about the symantec AV. I've been on a mac since I gave up my amiga, perhaps something installed years ago ? I really don't remember.

I'll give it a shot and report back.

No luck. followed directions as suggested, removed symantec stuff via their removal tool, SMC/PRAM, etc and situation remains the same? Embedded web page video, about 1/3 overall screen width, GPU diode runs to 97, fans at 2550rpm, cpu usage for the page 6.9% I do not see gpu heating with youtube video.

Do you know if apple' s use of METAL changed between El Capitain and Sierra pushing more load onto the GPU?

I've seen others on the web mentioning high GPU diode temps, but unable to determine if this is normal for my iMac.

Thanks.

Please post a fresh EtreCheck report. Mac OS should not increase temps, however it's not unknown for hardware to break during a major upgrade like a OS upgrade. Let's first review your new EtreCheck report and then decide what to do next.

Again, many thanks for taking a look at this for me. I assume you don't think the high gpu diode temp is normal either.

EtreCheck version: 3.4.5 (455)

Report generated 2017-10-06 12:45:36

Download EtreCheck from https://etrecheck.com

Runtime: 1:53

Performance: Excellent

Click the [Lookup] links for more information from Apple Support Communities.

Click the [Details] links for more information about that line.

Problem: No problem - just checking

Hardware Information: ⓘ

iMac (Retina 5K, 27-inch, Late 2014)

[Technical Specifications] - [User Guide] - [Warranty & Service]

iMac - model: iMac15,1

1 4 GHz Intel Core i7 (i7-4790K) CPU: 4-core

16 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

4 GB DDR3 1600 MHz ok

BANK 1/DIMM0

4 GB DDR3 1600 MHz ok

BANK 0/DIMM1

4 GB DDR3 1600 MHz ok

BANK 1/DIMM1

4 GB DDR3 1600 MHz ok

Handoff/Airdrop2: supported

Wireless: en1: Unknown

iCloud Quota: 5.00 GB available

Video Information: ⓘ

AMD Radeon R9 M295X - VRAM: 4096 MB

iMac 5120 x 2880

Disk Information: ⓘ

APPLE SSD SD0128F disk0: (121.33 GB) (Solid State - TRIM: Yes)

[Show SMART report]

EFI (disk0s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

(disk0s2) <not mounted> [CoreStorage Container]: 120.99 GB

Boot OS X (disk0s3 - Journaled HFS+) <not mounted> : 134 MB

APPLE HDD ST1000DM003 disk1: (1 TB) (Rotational)

[Show SMART report]

EFI (disk1s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

(disk1s2) <not mounted> [CoreStorage Container]: 755.56 GB

Recovery HD (disk1s3 - Journaled HFS+) <not mounted> [Recovery]: 650 MB

Big Boy (disk1s4 - Journaled HFS+) /Volumes/Big Boy : 243.65 GB (148.89 GB free)

USB Information: ⓘ

USB30Bus

Newer_Technology miniStack

chnology disk3: (2 TB)

EFI (disk3s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

Time Machine (disk3s2 - Journaled HFS+) /Volumes/Time Machine : 1.50 TB (278.82 GB free)

Space (disk3s3 - Journaled HFS+) /Volumes/Space : 497.71 GB (413.40 GB free)

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. FaceTime HD Camera (Built-in)

hub_device

Apple, Inc. Keyboard Hub

Logitech Logitech USB Headset

Apple Inc. Apple Keyboard

Thunderbolt Information: ⓘ

Apple Inc. thunderbolt_bus

Virtual disks: ⓘ

Mongo (disk2 - Journaled HFS+) / [Startup]: 870.70 GB (443.21 GB free)

Physical disk: disk0s2 120.99 GB Online

Physical disk: disk1s2 755.56 GB Online

System Software: ⓘ

macOS Sierra 10.12.6 (16G29) - Time since boot: less than an hour

Gatekeeper: ⓘ

Mac App Store and identified developers

Kernel Extensions: ⓘ

/Applications/Radio Silence.app

[not loaded] com.radiosilenceapp.nke.filter (1.0 - SDK 10.7) [Lookup]

/System/Library/Extensions

[not loaded] com.ATITechnologiesInc.TVOut (2.4.0) [Lookup]

System Launch Agents: ⓘ

[not loaded] 7 Apple tasks

[loaded] 178 Apple tasks

[running] 100 Apple tasks

System Launch Daemons: ⓘ

[not loaded] 41 Apple tasks

[loaded] 178 Apple tasks

[running] 99 Apple tasks