GPU DIODE TEMPERATURA ALTA.....

Salve, è un po' che ho un problema al mio iMac appena accendo ventole a manetta poi dopo 10 minuti schermo nero pero' ho riscontrato con Istat pro una temperatura alta la GPU DIODE arrivato a 116 vorrei sapere cos'è cosa non va al mio iMac da 24" processore intel 2 duo da 2.8 anno 2008... Grazie. Gianfranco
Hi, is a bit 'I have a problem to my iMac just turn on fans to throttle then after 10 minutes black screen but' I found with a high temperature Istat pro GPU DIODE came to 116 would like to know what what's wrong to my iMac 24 "intel 2 duo 2.8-year 2008 ... Thank you. Gianfranco

Hi,
I know this is an old thread - but I came across it while searching for info as to why my precious MBP had the same issue. I believe I may have an answer, so wanted to post.
I noticed that the bug is not related to iStat as every other temp app I have used says the same thing. I also know it's not a sensor problem as I have run the Apple diag disk and a friend of mine who works in an Apple shop took a look and he says there's no problem either.
I downloaded gfxcardstatus as suggested in this thread, and I can see that when using the intel HD card, the temp is ~110c, when using the 330M it's ~50c, but here's the weird thing - when I try to switch to intel when certain apps are running, I get a warning saying that I cannot do this. If you click on the [Why?] button, you are taken to an explanation on the author's site, which says that the discreet card is never really turned off when certain apps are running - ie. 2 cards.... so I believe that the ~110c is a COMBINED reading for both cards which are running together but should not be. It's quite plausible that the intel HD would be running at ~60c, so there's your 110c.
Here's a pic of the authors site explaining the issue -
The best option would appear to be to keep it on the discreet card.
I hope this helps put other's minds at rest!!
PS. For me, the trigger apps are Little Snitch and iStat Menus.

Similar Messages

Unexpected shutdowns / high GPU diode temperatures / new RAM?

Hi there, all. First time posting on the discussion forum.
My problem started earlier. I ordered some additional RAM for the new World of Warcraft expansion and put it in today. Here's the RAM in question, from the place I got it from:
http://www.crucial.com/store/partspecs.aspx?imodule=CT25664AC667
I used their locator tool, input my computer (24" iMac, 2.33ghz, late 2007), and that's what it gave me. Just to be safe I cross-checked it with the RAM specs necessary that I found here:
http://support.apple.com/kb/HT1423
As far as I could tell, this all checked out. I ordered the RAM and installed it today with little effort. I did notice that the levers for popping out/securing the RAM were a little hard to move. It seemed like they were an awfully tight fit, and sometimes were touching the sodimms as they moved in and out. Nevertheless everything fit in and clicked. I removed one of the 1gb sodimms I had by default and installed my new 2gb sodimm, for a total of 3gb.
After that I rebooted and checked system profiler. It registered 3gb of memory and said both modules were working OK. I checked iStat Pro and it also showed 3gb of memory. I noticed a pretty substantial performance increase in WoW, which is what I was looking for, so I assumed everything was fine. I played WoW all day, from about 12:00 noon to midnight off and on. No problems.
Around midnight, my computer shut down. No warning at all. I thought it was a power outage of some kind; either a cord was loose, my power strip was out, etc. That's how sudden and weird it was. I checked my cords, unplugged the power, plugged it back in, and rebooted.
About 5 minutes later, it happened again. I repeated this 3-4 times. Each time I booted up, checked to make sure the RAM was working properly, fired up WoW, and it would crap out very shortly afterward.
After a few repeats of this I started looking at my temperatures in iStat Pro. I noticed that the GPU Diode was significantly higher than the others - in the 170 degrees Fahrenheit / 70 degrees Celsius range. I watched them closely as I rebooted, and I figured out that as soon as the GPU Diode temperature got into the 170f/70c range my computer would die instantly.
Did some research on these forums and elsewhere, and discovered reports of a pretty widespread issue of GPUs overheating on the Intel iMacs, with an identical response: instant shutdown at a critical temperature.
The computer geek in me says that this is a problem with the RAM. However, system profiler and iStat Pro all say the RAM is functioning properly. And if the problem does have to do with the GPU, as the temperatures seem to indicate, is that connected to the RAM?
Anyway. I unplugged my system and reseated the RAM just to be sure everything was fitted properly. I think that one of the sodimms may have been loose. I made double sure everything clicked into place this time, and as of this writing WoW has been running for 35 minutes with no hitches. The GPU Diode temperature went as high as 190f/90c, but my computer didn't shut down. Now the GPU Diode has calmed down to a more reasonable 160f/70c, and it's hovering there.
Anybody have any input? The problem has gone away for the moment, but my temperatures are still pretty high and I'm a little nervous. Should I take it in to the Apple store? I have Applecare, so it certainly wouldn't hurt.

Hi arco311
It does sound like you may have dislodged the remaining 1GB module or not fully seated the new 2GB module. If you have any more issues that seem to be ram related, reinstall the ram pushing real hard on each of the modules with both thumbs and then close the ejector clips.
There are three fans in the Intel iMac (CPU/GPU, HD and Optical Drive) and you may want to experiment with smcFanControl 2.1.3. Then run up only the CPU/GPU fan speed a couple hundred RPM to see if that helps to keep the GPU down in the 160 to 170 range.
http://www.macupdate.com/info.php/id/23049
Dennis

GPU diode sensor problem?

The GPU diode temperature is -128C (temperature monitor) and blank (istatpro).
After some heavy use, the two programs are showing some readings, but the GPU diode temperature is much lower than the others (CPU, Heatsink, etc).
Is this a problem of the sensor?
(macbookpro 17”, early 2011).
Thnxs for your help.

Hi,
I know this is an old thread - but I came across it while searching for info as to why my precious MBP had the same issue. I believe I may have an answer, so wanted to post.
I noticed that the bug is not related to iStat as every other temp app I have used says the same thing. I also know it's not a sensor problem as I have run the Apple diag disk and a friend of mine who works in an Apple shop took a look and he says there's no problem either.
I downloaded gfxcardstatus as suggested in this thread, and I can see that when using the intel HD card, the temp is ~110c, when using the 330M it's ~50c, but here's the weird thing - when I try to switch to intel when certain apps are running, I get a warning saying that I cannot do this. If you click on the [Why?] button, you are taken to an explanation on the author's site, which says that the discreet card is never really turned off when certain apps are running - ie. 2 cards.... so I believe that the ~110c is a COMBINED reading for both cards which are running together but should not be. It's quite plausible that the intel HD would be running at ~60c, so there's your 110c.
Here's a pic of the authors site explaining the issue -
The best option would appear to be to keep it on the discreet card.
I hope this helps put other's minds at rest!!
PS. For me, the trigger apps are Little Snitch and iStat Menus.

GPU Diode runs extremely hot?

I just bought a MacBook Pro and downloaded Civilizations V. I play at 1280*1080 fullscreen resolution with the lowest graphics settings. My computer (non retina display) has a Nvidia GeForce GT 650M graphics processor with 1 GB VRAM, Intel HD Graphics 4000, 1680 * 1050 resolution, 8 GB RAM, 2.7 GhZ quad-core processor, and a solid-state drive, so I thought playing on the lowest settings with a 1280*1080 fullscreen wouldn't tax it too much, but the GPU runs from 160-170 F and the GPU diode, whatever that is, is 180-185 F, which is worrisome to me. Usually the how-to guides say to clean your computer and stuff to cool it better, but my computer is 2 days old and my room is not dusty so I doubt that's the cause. I haven't downloaded any strange applications or anything. Interestingly, when I played with the highest graphics settings and resolution, it did not seem to raise the temperature of the GPU diode any further. Also, when I brought my big fan next to the computer and placed it on high speed, it didn't lower the temperature of the GPU diode. So maybe iStat pro is wrong, however, when I touch the top of my keyboard (above all the keys and right next to the screen) it is very hot to the touch. Is something wrong with my computer? Is 185 F safe for a GPU diode, and 175 safe for a GPU, and 145 for a CPU heatsink? Should I just not play this game?

Hi ns180.
I've read your post and I see that I have a similar problem.
I run the Civilization V in an iMac 24 in and my Graphic Processor Diode reaches the 90 ºC (194 F). When this happen I left the game immediately. I've recently change (for second time) my hard disk and probably the last two were damage by the heat, so when I change the disk, of course, I cleaned the circuits with isopropyl alcohol and spay them with compressed air. I´m running recently, just after the last repair, the Temperature Monitor and SMC Fan Control and for sure it doesn't matter what I do, I can't reduce the temperature of the GPD. In fact, I'm writing right now, only using the Firefox and GPD is in 80 ºC. The back of the iMac, the left up corner, is very hot all the time. I put an exterior fan, a big one, and nothing... I'ts still hot the GPD. This means that I can cool the exterior of the Mac, but never the interior.
My conclusions for the moment is that may be the GPD is damaged and the best possibility is trying to change it or find other way to cool the interior of the Mac.
Greetings from Mexico.

-127 GPU Diode...

Hello Fellas,
I was just doing simple safari work, youtubing, and ichat. Just about 20-30 minutes I've always used istat nano widget from dashboard to monitor my temperature usage, then I just wanted to check my temperature if it's okay cos it was getting warm (not hot) just warm. And suddenly I saw GPU Diode -127F, I immediately surfed the web to see if it's a normal reading, I couldn't find much so I decided to restart my computer. Mind you, I just got this Mid-2010 macbook pro 15" i5 like 2 weeks ago so I figured there shouldn't be any problems and it's not a refurbish one either. Brand new. Anyways, back on topic, I saw the GPU Diode -127F, I restarted my laptop and the GPU Diode is gone. SO I read up some forums, saying the istat nano widget might be outdated so I got rid of it and reinstalled the new version 3 istat pro menu up at the menu bar because I bought it for $16. They make you pay for it now after 14 days so I figured why not since it's updated and you pay for it, probably better quality. So far I haven't seen the GPU Diode, I was just wondering if anyone has had that with the istat nano widget. Is it something I should bring to the apple store to check anything? Since this is my first mac and all, tend to worry especially when it's an almost 2k worth of machine. I even called up apple and the guy said it's fine but the minus sign do worry me quite a bit. Thanks hope to get some replies soon

You know how the new v3 of istat menu has a sensor where you adjust the fans? How is yours adjusted to a reasonable speed for your macbook pro? I don't want to mess with it and damage my fan. So I was wondering how yours is done. I noticed there is a "Default" & "Medium". I'm not sure how it goes about. I am enjoying my new machine lol it's just that I don't want to damage it so that's why I'm asking around. It's worth almost 2k, should be careful with it and all being my first mac. And do you leave your ac adapter in your macbook pro all the time? I remove it when I go to school, I don't use the ac adapter at school. I downloaded coconutbattery, it says my laptop is 3 months old. When I first got it, there was 2 count cycles, so far there's 8 count cycles. Is that okay? I've only used 6 cycles, by far.

Can SCC-RTD01 be used with Cernox RTD's, silicon diode temperature sensors?

Hi,
Can the SCC-RTD01 be used with negative temperature
coefficient RTD's such as the Cernox RTD's. Can it be used with
silicon diode temperature sensors?
I was planning on using the SCC-RTD01 with platinum
resistance wires, but want a screw mount type sensor. Couldn't
find any platinum RTD devices with screw mounts, but could find the
Cernox and diode temperature sensors with the screw mounts.
Thanks,
Mark

Mark,
Thank you for contacting National Instruments! When you configure an RTD channel in the Measurement and Automation Explorer (MAX), you have the option of choosing from a list of "standard" RTD's or entering your own polynomial expression as the temperature coefficients. Therefore, negative coefficients shouldn't pose a problem. Also, I don't see any reason why a silicon diode temperature sensor would pose a problem either.
I hope this information is helpful to you!
Jeff P.
National Instruments Applications Engineer
Jeffrey P.
LabVIEW Product Management
National Instruments

Hot GPU diode and noisy fan - 3600rpm

After an hour my iMAC's GPU diode is running at 88° and the CPU fan is noisy at 3600rpm. I have taken it to an Apple certified reseller and they couldn't find anything wrong. Can anyone help suggest a reason why it is running hot and noisy?

Hello davemo73 I have the right the same problem, I have taken to an Apple certified support and they told me that is everything all right with my iMac, when I arrived in my home an surprise! the same issue... noisy fan and rpms too fast. Im really worried about, I dont wanna to change the logical board (60% of imac, too much expensive in my country, like a $1100,00 half cost of new machine.).
Can someone from Apple help us? PLS I'm going crazy!!!

Macbook pro 13" CPU A Diode temperature

Hi all,
I have recentlypurchased MBP13 inches (Intel Core i5 2.4 ghz, 500 G HDD, Internationalkb). I observed a difference in CPU heating behaviour compared to mypreviously used MBP 15" (2008 version).
So I did the following test:
1. CPU Temperature after 10 minutes idle (no activity except hardware monitor; user load 1-3% as measured by istat pro) :
observations:
CPU A temp diode: 42 degree C.
CPU core 1: 40 deg C
CPU core 2: 41 deg C
CPU core 3: 40 deg C
CPU core 4: 41 deg C
2. CPU temperature after 10 minutes of constant intense CPU activity ( 100% CPU load) given on both cores of the CPU
(by typing command in two terminal windows: yes > /dev/null)
CPU A temp diode : 93 degree C.
CPU core 1: 99 deg C
CPU core 2: 99 deg C
CPU core 3: 95 deg C
CPU core 4: 98 deg C
I have got two questions:
1. Is this a normal behaviour of i5 CPU heating ?
2. Why does the hardware monitor show 4 cores of CPU when in fact Intel i5 is a dual core processor ?
Thanks

Well, I talked to Apple support and tried to find out whether my observed temperature ranges vs CPU load were normal. Surprisingly, they told me that they haven't got any publicly available information on this phenomenon.
I have also inserted a plot of temperature rise vs CPU load here.
So it sounded like Apple does not want to come transparent about this issue with their customers. They only advised me to contact the nearest service center and see what is their opinion. Now in the absence of any precise and standard information about temperature ranges, I don't know what would be the basis of opinion from service center.
@pixelized - I suppose i7 overheating is increasingly discussed. But mine is i5. I guess the temperature rise vs CPU load should be different between the two processors. I have never observed temperatures like 120 C, even after 10 mins of 100% CPU load on both cores or by watching videos. Ambient room temperature was 18C in my case.
If anyone has obtained observations of temperature rise on i5, I would appreciate if you share them here.

G550 with geforce g150m gpu core temperature question

my gpu core goes 77 when not using any games ... and goes high as 103 c approximately... should i be worried ? i mean it still work normal. using riva tuner to see core temp....
nfo file of laptop
where should i clean if necessary

the temperature should be about 39c* while idle
it looks like you are having "cooling" issue.
have you tried to clean fan?
*according to this review

GPU Diode above 90 C?

Hey guys, this morning I logged onto Starcraft 2 on my Macbook pro(13-inch/2012) just to see if my buddies were online and after 5 min my GPU temp diode rose up to 98 C. Is this a problem? I wasn't even in-game, just in the menus. My macbook is less than 1 month old.
2.9GHz Dual-core Intel Core i7
8GB 1600MHz DDR3 SDRAM - 2x4GB
256GB Solid State Drive

Yes, that is a problem.
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.

Qosmio X770 - GPU/CPU temperatures

Hello everyone,
What temperatures do you guys have for the CPU and GPU?
Usually mine are around
45-50 deg for CPU and GPU - normal conditions
85 deg for CPU and 78 for GPU - during games 1920x1080 resolution full details
Regards,

I've got the throttling problem, which means when the GPU get's under load
GPU-clockspeed is reduced form 775 to 203 MHz and games aren't playable anymore.
It happens in nearly every game or benchmark after 1-4 minutes.
The temoerature goes to 67 degrees before downclocking, but some people are reporting
reachable temperatures of 78 degree (without throttling). The main problem is that
3D Vision is nearly unusable, because it pushes the GPU-Load to high to run without
thottling.
These are the things I've tried so far:
1. downclocking gpu-frequency to 675MHz and 725MHz with EVGA precision:
- works for unigine heaven benchmark (1280 x 720, 3D Vision off)
- throttling in unigine heaven with 3D Vision enabled (clocks down to 202,5 MHz)
- throttling with Burnout Paradise and enabled 3D Vision (clocks down before showing the
first 3D picture)
2. disable speed-stepping (and turbo boost) for CPU in BIOS (ver 1.30 by the way), to
preserve the power for the GPU, no downclocking of GPU
- throttling in unigine heaven benchmark (1280 x 720, 3D Vision off)
- throttling in unigine heaven with 3D Vision enabled (clocks down to 202,5 MHz)
- throttling with Burnout Paradise and enabled 3D Vision (clocks down before showing the
first 3D picture)
3. tried to disable GPU throttling via NVPMManager (Disable Overheat Slowdon Override)
- no effect
4. tried to disable GPU throttling via GPU-Z (/GTC500OCP commandline-option)
- no effect
5. tried step 1 - 4 with several newer drivers (laptopvideo2go)
- same result as described und 1-4
- additional problems, no working 3D vision for example
--> returned to stock drivers (which don't support youtube with 3D Vision)
6. email to toshiba, yesterday
- no answer
I think this is a patchable problem (bios for GTX 560m), because for the desktop GTX 560, one can
find several articles about contributor-dependent enabling of the power limiter. hardwareluxx
has no problems while benchmarking the notebook (31+ fps in unigine heaven, which aren't
reachable with underclocking), so maybe it worked with another graphics-BIOS. I'll wait a few days
for a mail from TOSHIBA support, before returning the notebook. The machine would be really nice, if
it would be working as expected.
Best alternative for the X770 with 3D is the ASUS G74SX - you can't find anything about throttling in the
web for this one.

Average temp of gpu diode? (web browsing)

i am usually 40-43 C. is that normal? everything else is at 29-31 C.

40-43 is very low temperature, no problem.

ATI x1600 problem almost fixed!

Hello there,
As you already know, there are frequent display artifact problems and in general GPU stability problems with iMac (and macbook pro!) models featuring the notorious ATI x1600.
My last attempt at fixing this problem was to check the GPU diode temperature, which was around 59 degrees Celcius. The video card stability tests that I made showed beyond doubt that graphics chip stability was compromised at this temperature. One program showed random video RAM errors suggesting GPU bus instability, and the other program found artifacts in under 10 seconds.
Therefore, I downloaded the wonderful freeware program called smcFanControl and adjusted the minimum fan speed to about first 2000 rpm and then 1500 rpm, yes there is more noise, but the GPU Diode temperature is about 44 degrees now and there haven't been any nasty crashes for a while, and on the boot camp the video card stability surpassed the one minute mark. And I haven't seen any crashes since then, let's see how far it will go, it's past one day and there is no sign of a storm yet. I also keep the LCD brightness as low as possible (around median) to avoid excessive heat and do not use graphics intensive screensavers just to be on the safe side.
Hope this helps somebody around here!
Regards,
Eray Ozkural
Researcher, Erendiz Superbilgisayar Ltd.
PS: The Apple Hardware Test cannot find any fault when the GPU is malfunctioning....

The only difference is that people with problems tend to post on forums to state that they have problems. People who do not have problems generally do not have any reason to post that everything is perfectly fine. Therefore, such anecdotal evidence is heavy skewed to the negative.
Also, when I do a Google search on "ati x1600 mac," most of the hits are about people over-clocking their X1600 and how to do it (not about problems). Because they are able to over-clock from the stock settings, that tells me Apple designed a fairly large safety margin into the design, since any over-clocking will increase heat and decrease reliability. I have not personally over-clocked anything, since I am happy with the stock performance.
(I see no evidence to justify calling it "notorious.")
So my guess would be that I am not particularly lucky, but you may be unlucky. Or perhaps your iMac's cooling system is not working as well as it should, since you say that increasing the fan speed improves reliability; maybe airflow is being blocked or hindered internally or one of the fans is not working properly. Or your iMac's power supply is becoming faulty. Or you are plugging it into an old surge suppressor (power strip) or one with too many other devices connected (overloaded).

Tecra M11-13J Diode GPU Overheat

This probably don't have any effect like every time i phoned to Toshiba technical support.
But, i will try anyway.
I bought a Toshiba M11-13J on August, since then i need to sent him to warranty two times, the first time it was the same problem that was described in topic:
Toshiba Tecra M11 - Random Crashes with Windows 7
The motherboard was substituted.
A week later, the second problem began. I started to hear the fan sniping faster, but the air it was not to hot. I run Toshiba health monitor and i saw that internal system temperature and fan speed it's always above 80%, then i installed Everest that show me the temperatures of some components, one of them it's strangely hot, GPU Diode, without any program running the temperature it's above 80C/90C, and the processor and HD was on de 50C and 35C (approximatively).
After this, i left my pc in warranty again, and one more time, motherboard was substituted.
Again, more or less one week later, the old same problem appeared again, in Toshiba technical support, they did not give any special attention to my problem, they only said to leave my tecra again in warranty, but this time, i cant be without him, i'm in college, i have a lots of works to show in classes and do at home, exams to study, and i have no time to leave him in warranty again with the same problem.
I bought a Tecra because it has suppose a non problem notebook, but i was wrong.
I beg you (Toshiba) to give me an alternative solution to my problem, i think this is inadmissible.
When i'm working, sometimes with programs that wasn't supposed to use image, like matlab when it's doing calculus, the diode GPU reaches more then 125C, and when i'm in classes and i need to have work to give my teacher on the end off the class i cant stop or my grades will be "0" in that works.
The rest of the temperatures stay much below this level, like processor at 75C and HD 30C.
I simply don't no what to do more, i already reboot my notebook, bios it's upgraded.
Solutions Please...
Best regards
Jaime Arajo

Some questions:
1) Are the vents breathing easily? The system may overheat if the vents are blocked.
2) Have you tried removing any dust build up? Try spraying Compressed Air through the Vent.
3) Are you using the standard display driver from the Toshiba Website? Installing other drivers can cause this kind of problem.

GPU temperature limit

I have t61 with Nvidia NVS Quadro 140M GPU. After replacing the motherboard, stress tests (sisoftware sandra, Furmark) on the GPU show temperatures as high as 102C to 107C. Local official service lab claims they dont see any problem. What are the allowed and the expected temperature limits?

I've used also aida64 for the monitoring, and as a stress test run HD 1080p youtube movie (planet earth, great).
Tpfancontrol shows about 6-10C less tha the other applications, for the GPU. It seems that the other applications read the GPU diode, vs. just 'GPU' (I don't know the difference).
When I turn off the tpfancontrol, the fan drops to about 3200 rpm, while when it is on, and the temp is high, the fan goes up to about 4500 rpm.
I'm not going to open the PC, but intend to take it to another service provider, and I'll try to get the pictures there.
Thanks a lot for the help.

GPU DIODE TEMPERATURA ALTA.....

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