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Old 18th March 2009   #1
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How hot is too hot for CPU/GPU/etc...???


Quick question: I keep getting very hot temperatures on my PC. CPU Temp's exceeding 80 deg. Celcius!! I need to redo the Arctic Silver 5.

Also, do 64-bit machines run hotter than 32-bit ones? I don't quite remember 100%, but when I initially upgraded to Vista 64-bit, from Vista 32-bit, I think the temps increased consistently across the board by about 10-15 C's.

Does that sound about right??

Thanks all....

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Old 18th March 2009   #2
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Helps to mention which cpu
If it's the one in your signature - that's HOT...Might want to re-do the thermal paste.

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Old 18th March 2009   #3
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Again, as Steve said ..................
Assuming it's the CPU in your signature, 100° C is the uppermost limit so I'd put 80° C well within the danger zone. You can snoop around Intel for more specifics and I would certainly recommend you do so. It would probably be helpful to know which of the two T7600 Mobiles you are using and would be good to know the stepping when you embark on your own research. (what do you think, Pete?)

Here's a little tidbit from Intel.
Quote:
Problem: IntelŪ Adaptive Thermal Monitor has the ability to use multiple frequency/voltage
operating points to cool the processor while maintaining a high level of
performance. If IntelŪ Dynamic Front Side Bus Frequency Switching is active,
activation of the IntelŪ Adaptive Thermal Monitor may transition the processor to the
correct operating point voltage, but not frequency.
This may occur if:
1.) The software/OS requests to go to a higher performance Enhanced Intel
SpeedStepŪ Technology operating point during the thermal monitor activation
period.
2.) An entry into C4 state or IntelŪ Enhanced Deeper Sleep interrupts the
transition between the Intel Dynamic Front Side Bus Frequency Switching
frequency and the targeted thermal monitor operating point frequency.
Implication: If this erratum occurs, the IntelŪ Dynamic Front Side Bus Frequency Switching
operating point frequency will be observed along with the IntelŪ Adaptive Thermal
Monitor operating point voltage. The performance state status register
(IA32_PERF_STS) will reflect this intermediate performance state. There is no
functional impact; the eventual voltage/frequency selection is a valid operating point.
De-activation of the IntelŪ Adaptive Thermal Monitor will result in the processor
transitioning to the expected Enhanced IntelŪ SpeedStep Technology operating point.
Workaround: None Identified
Can we still assume this is your modded laptop with the upgraded CPU and upgraded GPU you've posted about on numerous occasions?


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Old 28th March 2009   #4
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Yes, sir, it is the T7600. There are two versions of it? Well, it's the 64-bit capable Intel Core 2 Duo @ 2.33GHz, and I'm currently forcing it to 1GHz, due to the heating problems, until I get this resolved. Pathetic as it crazy slow at that rate. Maybe I didn't use enough silver paste last time????

Check this out: So-called cooling pads, instead of the thousands of cooling solutions out there. What do you think???

Whatever I decide on, I will replace the silver paste as well, of course.

Again, do 64-bit machines run hotter than 32-bit ones? I don't quite remember 100%, but when I initially upgraded to Vista 64-bit, from Vista 32-bit, I think the temps increased consistently across the board by about 10-15 C's. You guys say 80C's is hot, and it's not that I disagree, but what would you think is a reasonable temperature for the unit I have in my sig. I have it forced to 1GHz, so it's "only" around 65C. Probably also too hot.

Thanks again guys!

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Old 28th March 2009   #5
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Originally Posted by CrunchDude View Post
Yes, sir, it is the T7600. There are two versions of it? Well, it's the 64-bit capable Intel Core 2 Duo @ 2.33GHz, and I'm currently forcing it to 1GHz, due to the heating problems, until I get this resolved. Pathetic as it crazy slow at that rate. Maybe I didn't use enough silver paste last time????

Check this out: So-called cooling pads, instead of the thousands of cooling solutions out there. What do you think???

Whatever I decide on, I will replace the silver paste as well, of course.

Again, do 64-bit machines run hotter than 32-bit ones? I don't quite remember 100%, but when I initially upgraded to Vista 64-bit, from Vista 32-bit, I think the temps increased consistently across the board by about 10-15 C's. You guys say 80C's is hot, and it's not that I disagree, but what would you think is a reasonable temperature for the unit I have in my sig. I have it forced to 1GHz, so it's "only" around 65C. Probably also too hot.

Thanks again guys!
I can't see why a 64 bit OS would run hotter than a 32 bit OS myself, but then someone will make it blindingly obvious. That is one reason why I hate laptops (they run far too hot, and you can't easily sort the cooling out) :P

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Old 28th March 2009   #6
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Originally Posted by CrunchDude View Post
Maybe I didn't use enough silver paste last time????

Whatever I decide on, I will replace the silver paste as well, of course.

so it's "only" around 65C. Probably also too hot.

Thanks again guys!
You are way more likely to use too much than not enough. And too much is really bad.

I actually use a razor too spread paste, that way I get the excess off and its a really thin layer. Did you know Artic Silver actually performs better after a number of on/off cycles. Also, my T2250 runs at about 65C, which is normal for this processor


Last edited by Ranger SVO; 28th March 2009 at 13:07.
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Old 28th March 2009   #7
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80°C is pretty cool for that CPU

Thermal Specification: 100°C

Mobile CPUs always run much hotter then their desktop cousins.

Quote:
Thermal Specification: The thermal specification shown is the maximum case temperature at the maximum Thermal Design Power (TDP) value for that processor. It is measured at the geometric center on the topside of the processor integrated heat spreader. For processors without integrated heat spreaders such as mobile processors, the thermal specification is referred to as the junction temperature (Tj). The maximum junction temperature is defined by an activation of the processor IntelŪ Thermal Monitor. The Intel Thermal Monitor’s automatic mode is used to indicate that the maximum TJ has been reached
Source: http://processorfinder.intel.com/det...x?sSpec=SL9SD#

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Old 29th March 2009   #8
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Follow the directions for your CPU about applying Arctic Silver 5 thermal paste correctly.

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Old 30th March 2009   #9
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Originally Posted by Admin. View Post
80°C is pretty cool for that CPU
Mobile CPUs always run much hotter then their desktop cousins.
With all due respect, Rockster will withold comment.


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Old 30th March 2009   #10
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Latitude D830, Intel Core 2 Duo T7300, 2.00GHz, 800Mhz 4M L2 Cache, Dual Core
15.4 inch Wide Screen WXGA LCD
2.0GB, DDR2-667 SDRAM, 2 DIMM
256MB NVIDIA Quadro NVS 140M
80GB Hard Drive 9.5MM 7200RPM
At boot my laptop temps are:
Core 0: 44 degrees
Core 1: 44 degrees
GPU: 48 degrees
HD: 29 degrees

After about an hour, those temps rise an average of 25 degrees each and level off.

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Old 30th March 2009   #11
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Well, my laptop (been running for about 1/2 a day):

Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz

THM: 55°C - Max 66°C
Core 0: 52°C - Max 63°C
Core 1: 54°C - Max 66°C
GPU: 64°C - Max 68°C
HD: 41°C - Max 42°C

Current ambient temp: 21°C

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Old 30th March 2009   #12
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Originally Posted by Arie View Post
Well, my laptop (been running for about 1/2 a day):

Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz

THM: 55°C - Max 66°C
Core 0: 52°C - Max 63°C
Core 1: 54°C - Max 66°C
GPU: 64°C - Max 68°C
HD: 41°C - Max 42°C

Current ambient temp: 21°C
What program do you use to find these out?

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Old 30th March 2009   #13
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Old 6th April 2009   #14
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Yea, well, I don't know about this 80C being "just fine" for a computer...any computer.

I think I remember Vista x64 to be quite a bit hotter when I upgraded from Vista x86. I know and remember because I run PC Wizard and my problem is getting worse. Even at 1GHz, it is now consistently in the low 80's C. How much does the fan suffer as far as collecting dust from running my baby 24/7. Right now, 82C for both cores and CPU temp. CPU Voltage is @ 1.063, with only 35% load on each core.

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Old 6th April 2009   #15
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Originally Posted by CrunchDude View Post
Right now, 82C for both cores and CPU temp. CPU Voltage is @ 1.063, with only 35% load on each core.
Yea, that doesn't look too good.

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