CPU Temps on high performance vista

Hi, I am a very proud user of the 6224 notebook, I have had several issues with it most of them are already fixed. My main problem now is the cpu Temperature, the temp of my cpu can get around 103C and maybe higher and my GFX can get at max 90C or a little bit more. I use Everest to measure the temps.

But the thing is, is that I thought the notebook will automatically shutdown if the temps get higher than 100C. My system specs are:

Zepto 6224
CPU: T7500 2,2GHZ
2gb Ram
and I use Vista Ultimate.

By the way my CPU doesn't get hotter than 75C if i have Power Saver switched on. It only gets hot at High performance switched on. I hope you guys can help me. Thank you.

 

Is your fan quite loud, even when the computer is idle? I onder whether you have hit the thermal monitoring glitch which reports the temperatures too high and then runs the fan too fast.

Reboot the computer to get to the white Zepto splash screen. Then press F2 to enter the BIOS. Then press F9 to reset the default settings (which fixes the above glitch). I then recommend going along the top menu to Security and setting the TPM to Disabled, then along to Boot and moving the HDD to the top of the list (highlight it and move it up using shift+). Then F10 to save.

You should then find the fan to be quieter and the reported temperatures about 20C lower, but the problem will reappear at some future startup / reboot. BIOS -005 fixes this problem but has also changed some of the fan operation rules.

I hope I have diagnosed this correctly. If you are still getting extremely high temperatures after resetting the BIOS we will have to think a bit more.

John

 

I have done what you describe...
but I am also struggling with the high temp.
I called up Zepto support which told me that for this cpu it's normal for it to be running at 100C... I still don't fully trust that though

 

The maximum rated temperature for the CPU is 100C but there is no reason to get anywhere near to that. If you are getting that hot then there are two possible reasons: The heat sink isn't fitted properly; and the temperature is being reported incorrectly (see my previous post).

There are some things we can check:

(i) What is your CPU temperature when the computer is on light load (eg simple web browsing). My T7300 is normally below 50C when using BIOS -004 (unless the temperature glitch happens, in which case it reports about 73C). With BIOS -005 the temperature is around 63C because they disabled the slowest fan speed.

(ii) Run something which fully loads the CPU but leave the GPU on idle. I am running the Wprime Stress test (note that you have to enable 2 threads under the advanced settings) and can get my T7300 up to 72C when it is running at 1.25V (default). However, I normally have my T7300 undervolted to 1.05V and this drops the temperature to about 62C under full load. [Note: finding the safe voltage range for undervolting needs some trials, but I've never heard of a Core series CPU which couldn't run at 1.10V maximum. Some run at 1.0V. Mine crashes just above 1.0V, hence the 1.05V setting).

Your CPU, if faster, may run a little hotter, but I would not expect it to go above 75C (the fan speeds up at around 72C). If your GPU is doing nothing arduous then our CPUs should equally benefit from the same cooling system.

Temperatures when both CPU and GPU are under full load are another matter.

John

 

When I am just browsing the net etc I get a reported temperature of 72-75C and that is with a Zalman-NC1000 cooler running at max, underneath the computer...

 

Is the air coming out of the fan very hot? If no, then:

Did you reset the BIOS to the defaults? If yes, then I have to think the heat sink has not been fitted properly.

John

 

I'm using RightMark CPU clock utility to monitor the temps and it gives more believable values than NHC used to (maybe like Everest then ?)
72°C on full load. the gfx card tops at 92 after in game

 

Well the first time when I got my notebook, I defaulted the bios so that's not the problem . And about one week ago updated the bios hoping that it will fix the high temps of my cpu, but it didn't help so...

The average temps of my cpu when idle are 57~63C, the fans are very quiet and sometimes you can't even hear it. But that's only if the temps are at the lowest like below 60C. But when the temp are very high the fans are very loud and VERY HOT!

But the weird thing is, is that the temps never get higher than 75C if Power Saver is turned on even if I am doing heavy stuff like playing Bioshock (demo) or Stability test with Everest. The only thing that makes the temps go high is when High Performance is turned on. And one more thing Everest shows on Power Saver 1.1 as CPU Voltage and on High Performance 1.4 Voltage.

 

Ok I think I found out why my notebook didn't restart when the cpu temp hitted 100C or higher. Today I stressed the cpu to 105C and I found out that the temps of the two cpu "CORES" were a little lower than the cpu temp itself. So by this I think the notebook will only restart when one cpu "CORE" hits 100C and not the cpu temp itself.

What I also found out today is that when I stopped playing Overlord the temps of the gpu were exactly 100C, so i would like to ask if this will damage the gpu or is his normal for a gpu?

Thank you in advance.

 

I find that I need to reset my 6024W BIOS ( -004) every two or three days to clear the temperature bug. However, BIOS -005 should not have this bug so the temperatures should be correct. Hence my previous question about BIOS version.

There are also two different CPU temperature sensor systems. I believe that the new Digital Temperature Sensors (DTS) are more accurate. RMClock gives me a CPU temperature about 5C lower than reported by MobileMeter.

John

 

I am using the newest bios 14005 for a week now. But in the previous bios(defaulted) I had the same problem and the temps were the same when stressed.

I don't know how accurate Everest is. but the first time I started the program it said that it didn't support my system or something like that. After that it recommended me to update the program to a newer version while I already have the newest version so .

And I have read somewhere that the Core2duo's maximum temp is 100C and anything under it won't damage the cpu, is this true?

 

Study Intel's datasheet for the C2D CPU's and somewhere in section 5 you will find reference to the 100C temperature limit. However, if the CPU is getting proper cooling then it should not be getting anywhere near that temperature. If the high temperatures are genuine then they are not good for life expectancy.

John

 

TAT is a nice tool, but I don't think it gets on very well with Vista.

John

 

I havent got any numbers of my gpu, but with Intels Thermal Analysis Tool I can get my 1.8 T7100 to a max of 90C on full load. I have a 6625wd.
The thermal analysis tool is good in that fact that you separately or simulately (eh hows that one spelled??) stress test them and you get one temperature per core. At normal browsing my fan is allmost off and temps around 50-60C
oh and I run Vista32, and no bugs has occured yet

 

90c is way way way too high anything over 75C is. 90-100c will shorten the life of the notebook. Use Coretemp as a means of reading temps. It plays better with Vista than TAT

 

I've just tried CoreTemp.

The temperatures are exactly the same as reported by RMClock.

John

 

i just installed vista x64 again, and cant find any working cpu-temp programs for vista x64.. are they any???

(don't want to steel the thread, just don't want to start a new one for this question, sorry)

 

Did you try CoreTemp? It says it works with 64 bit although it doesn't mention Vista. You may need to trick 64 bit Vista into letting it run.

John

 

Sorry for going completly offtopic here but may I just quickly ask how you manage to change the core voltage? I can't find anything in BIOS on my 3415w at least..

 

RMclock. There's nothing in the BIOS.

John

 

@dicecca112
90C high..? well if this is really true than my notebook is pretty screwed by now. I stressed the cpu again today and it took 50seconds to get from 60C to 90C. it jumped from 60C to 70C at the first second so .

@nexs
If you have Vista than I can help you under volt your cpu. I have managed to under volt the cpu with help of the Power options in Vista. At the Power plan settings you can reduce the maximum processor state, if you do this the voltage will reduce too.

And by the way what are the temps that the other users of the Znote 6224 do have. If you haven't checked it yet, please go check right away because I didn't know my notebook ran this hot till I installed Everest.

 

I have compared the TAT, RMClock and CoreTemp and TAT shows 4-6 degrees higher temps than the 2 other. I have a temp of 50 when browsing, listening to music trough WMP and having IIS server up.

Having temps of 90C+ is rare, I ran 100%load for 1 minute to get that temp, and can you mention one program that will produce full load for over 1 minute. (100% load does NOT mean that the processor is doing 100% in task manager or other processor recorders, it actually does 100% already at 50% load, cant test lower than 50% load )

 

I get no higher than around 60-65 degrees playing games or playing 1080p without hardware decoding. However I never get lower than 50 degrees either since as soon as i get under 50 the fan shuts off completly, meaning it shoots back up to 50 again, and so on (not annoying though, very silent anyway). Gonna get a zalman nc1000 notebook cooler soon though, hoping that will be enough to enable fully silent mode while browsing etc (the fans on the zalman are only 18db so as good as inaudible)

 

Am I really the only one with a znote 6224 with these high temps?

 

I think i should get a cooling stand for my 6625wd as I use pretty much of the raw force of the processor when developing websites and gaming.( and the table i have it on right ow isnt that good to keep the laptop cool lol)

 

I did before doing the bios reset - have you done this yet?

 

Seems most things have been said in this thread by now, and if you've tried them with no luck i suggest turning directly to Zepto since something may be wrong that you as a user simply can't fix. Personally this thread taught me how to undervolt, cutting a good 10C off my max load and now my comp never goes over the 2nd fansetting! (Even running dual-instanced prime95). My CPU never goes above 62-63 degrees now!

 

Hello, sorry to interfere with the topic. When I play some game, the temps are a little below 70°C, and that does not require the highest fan speed. However it generates uncomfortable warmth I was wondering if there was a way to force stronger venting. Thank you for your help !
btw I tried undervolting and it's working great !! instantenous 10°C drop, thanks for the great trick John !

 

I'm glad to hear that RMclock is helping to get the temperatures down. I've been using it for nearly 3 years.

As a matter of interest, how are the recent converts to RMclock working out their safe maximum voltage?

John

 

4 hours dual-instanced prime95 with 100% CPU load with a t7300 with 1,050 volts with no errors. BSOD at 1,037 though.

 

hehe you wouldn't want to know =)
too lazy to wait for prime95 tests, I tested 1.1V then 1.05V successfully through long hours of gaming =p. I did not try to step further down, for all reported errors were starting at less than 1.05v.
(request up: anyway to directly control cpu fan speed ? =))

 

I just set mine to 1.1V (T7100) and im going for a test spin gaming. But at least it dropped the temp down by 5-10C (I also edited most power options in Vista, so lets see)

 

I would recommend stepping the voltage up one more notch. Running only one step above the BSOD doesn't leave much margin.

OK, but a long soak test would give extra peace of mind - just leave 2 x Prime95 running overnight.

It would be good to have the Zepto equivalent of I8kFanGUI. Maybe Zepto could provide something which allows users to define fan operation without going outside a pre-defined temperature range.

That's a good start. Proceed cautiously until you have given the CPU some heavy sustained work.

John

 

I put the bios back to default and disable the tpm thingy, but I didn't experience any decrease in temperature until I undervolted the cpu...
However the results are drastic now. When playing World Oof Warcraft I went from ~92degrees C to around 73C

 

Is this trick possible for the 6214w model aswell ? having a long term history of overheating.

 

Undervolting has been around for several years. In the old days of the Banias and Dothan Pentium M CPUs it also used to be possible to reduce the minimum CPU voltage and improve the battery time. Intel has now locked those but you can still reduce the heat unless, by bad luck, you have a CPU which needs its maximum voltage in order to run.

Which CPU do you have?

John

 

I've got a duo 2 core 2ghz, i think it's T7400 ? or T7200, can't remember if 7400 is 2,2ghz

 

Okay, i tried to figure out this little program, and talked to a friend who made it work. She told me to change value of #4, but when i look at my setup, i've got up to #6 !?! we have the same cpu

please take a look at this:





makes sence to anyone?

Thanks

 

Yeah I might just do that, the temp difference should be minimal anyway.

 

Has been wondering how the computer reacts if it gets just a little bit too low amount of volt ? because i now see some wierd lag or struggle performance wise in world in conflict demo, which i didnt have before i put it to 1.05V, could it be?

ill try to put it to 1.10V and see if that helps...

 

The result of insufficient voltage is usually the Blue Screen of Death, but you might just get some other mysterious application error. You wouldn't see a slow-down in performance. Use RMclock's monitoring page to check that your CPU speed is changing to suit the load. You might have unintentionally enabled just one CPU speed setting.

John

 

Ok, I think there is a big diffrence in RMClock depending on the processor, cos I only have 0-3 stages :/

 

Why do you guys use rmclock to under volt your cpu, and not vista power plan? And I have some questions that I would like to ask:

1. What is the average safe temperature when your doing nothing?
2. And what for the gpu?
3. What is the maximum safe temperature for th cpu?
4. And maximum for the gpu?
5. and whats the best temperature for the hdd?

Thank you.

 

I use the program because i dont use Vista

 

Vista's power plans use the standard pre-define voltage settings. RMclock allows users to select their own voltage from within the range hard-coded in the CPU. For example, by default full speed on my T7300 is at 1.25V. In reality the CPU will run safely at full speed at 1.05V. Ohm's law dictates that power is according to the square of the voltage. 1.25 squared is 1.5625. 1.05 squared is 1.1025 so the power used (and heat emitted) at 1.05V is only about 70% of the standard setting. That's about 9W less heat to be disposed of and, typically, results in a 10C drop in temperature (under full CPU load). This also means that the fan runs slower and quieter.

According to Intel the CPU can run up to 100C, however, heat and electronics don't mix well and sustained high temperatures will shorten the working life.

Most notebook HDDs have a recommended maximum operating temperature of 55C. Again, in the long term head is likely to adversely affect life expectancy. My current HDD runs at around 40C +/- 5C depending on ambient temperature and disk activity.

John

 

My HD runs at 33C after getting my cooling pad 39C before. Got another question though, anyone know if it's possible to apply some arctic silver 5 on the CPU and maybe also GPU on the znote 3415w? Possible as in:

1. It doesn't break the warranty. Otherwise never doing it.
2. It's technically possible (i've built my own desktops before but I've never even opened a laptop)
3. It's worth doing - but I'm guessing it would be, it's not like zepto put some on there themselves eh?

 

Nexs it does break the warranty to apply AS5 yourself and also there is no need to do it as we use AS5 on all the machines.

 

I would suggest that the AS5 info goes on the website and into the data sheets. It is a selling point and will give users peace of mind.

So far it seems that all the reports of extremely high temperatures are caused by thermal monitoring glitches rather than cooling system problems. [However, in a year or so I would expect problems to increase as the cooling systems clog up with dust and fluff - users will need an Idiot's Guide to cleaning their cooling system].

John

 

Wow thats cool, you guys should definitely add this to the website, since I'm thinking not many companies do this! A kinda different question then; I'm amsuming the fan at the back left of the 3415w is used to cool both the CPU and GPU, is there some way of controlling this fan? Or maybe if not, will there be in the future? Because at the moment, like I posted before, it's switching kinda often going from completly off to a not loud, but audiable setting, maintaining a temperature of 50-52 degrees on the CPU. Instead I would very much like it staying on at an added ultra-low setting (preferable inaudiable, but just to keep the airflow going) - which in idle mode definatly would cool enough in my case. At the moment the fan is completly turned off around 2/3 of the time in idle.

 

my 6625wd fan never goes off, dont know whats causing this, but its allmost inaudiable when its idle. Just a quiet whirring that you only hear when you actually sit at the laptop or its completely quiet (nights)

btw, does it break the warranty if you open the laptop so that you can clean the airtunnels?