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Windows 7: re: laptop is giving problems after it heats up

19 Sep 2015   #1
reble

windows 7 home premium 32 bit
 
 
re: laptop is giving problems after it heats up

I have a HP Presario C700 laptop. Os Win7 home 32bit. When I 1st turn the laptop on cold everything is fine. After a while the front left side of the laptop gets warm. It isn't hot enough to burn my hand. I can rest my hand there for a long time but it does get a bit uncomfortable after a while when I am playing a game.
After a while when the laptop is warmed up. Prog's that need a a lot of cpu usage and memory start slowing down and stop working. Then the prog needs to be closed and reopened. Often FireFox will stop working right in the middle of doing something. Thank the makers of FireFox for putting in a sub routine in that lets FireFox go right back to were ever I was (even if I am in the middle typing a post and I don't lose what I already typed) after restarting the prog. Also I understand that some laptops just do that, getting warm in one spot, because of the design and layout. Is it something I just have live with until I can get a better laptop? or is it something that needs fixing and can be fixed.

OOO a ps. Sometimes, not very often, like with the current proj I am working on with a pare of SDR (Software Defined Radio) RTL USB radio dongles. I am often running 4 or 5 different prog's at the same time to decode the digital signals picked up by the receivers. Windows sometimes, not often, will get so over worked that it locks up the laptop and the only thing left to do is reboot the laptop.


Steve


My System SpecsSystem Spec
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19 Sep 2015   #2
GokAy

Windows 7 Ultimate x64 SP1
 
 

You can try using a laptop cooler.

And to make sure of thermal throttling:
- Change to High Performance power plan - so CPU stay at max frequency
- Download and run HWInfo in sensor-only mode.
- Make sure minimum column for CPU frequency is 100% (multiplier at max), reset the readings (lower right) and keep it running in the background
- Do your thing until it gets slow, then check the frequency (multiplier) minimum to see if CPU has throttled.

Also try to vacuum the fan openings as compressed air may cause more issues with laptops since blown away dust don't have anywhere to escape.
My System SpecsSystem Spec
19 Sep 2015   #3
reble

windows 7 home premium 32 bit
 
 
re: laptop is giving problems after it heats up

Gokay I added a ps. Did you see it?

Quote   Quote: Originally Posted by GokAy View Post
You can try using a laptop cooler.

And to make sure of thermal throttling:
- Change to High Performance power plan - so CPU stay at max frequency
- Download and run HWInfo in sensor-only mode.
- Make sure minimum column for CPU frequency is 100% (multiplier at max), reset the readings (lower right) and keep it running in the background
- Do your thing until it gets slow, then check the frequency (multiplier) minimum to see if CPU has throttled.

Also try to vacuum the fan openings as compressed air may cause more issues with laptops since blown away dust don't have anywhere to escape.
My System SpecsSystem Spec
.

19 Sep 2015   #4
GokAy

Windows 7 Ultimate x64 SP1
 
 

Good thing you re-posted, I didn't see the Note.

You can try the same approach to determine if it is a case of thermal throttling. Sometimes it is possible to stop throttling by decreasing max processor state to less than 100%. Say, your 3 GHz CPU will work at 2.7 GHz but at least it won't slow down all together.

By the way Prime95 is also another good method to induce some heat to the CPU for testing purposes.
My System SpecsSystem Spec
20 Sep 2015   #5
reble

windows 7 home premium 32 bit
 
 
re: laptop is giving problems after it heats up

I think I understand what thermal throttling is after typing in "what is thermal throttling" into Google search and reading a few posts in other forums about it. Also what is Prime95? I am also not sure what you mean by "Change to High Performance power plan - so CPU stay at max frequency" and "Make sure minimum column for CPU frequency is 100% (multiplier at max)".

Quote   Quote: Originally Posted by GokAy View Post
Good thing you re-posted, I didn't see the Note.

You can try the same approach to determine if it is a case of thermal throttling. Sometimes it is possible to stop throttling by decreasing max processor state to less than 100%. Say, your 3 GHz CPU will work at 2.7 GHz but at least it won't slow down all together.

By the way Prime95 is also another good method to induce some heat to the CPU for testing purposes.
My System SpecsSystem Spec
20 Sep 2015   #6
reble

windows 7 home premium 32 bit
 
 

GokAy here is the readouts from HWInfo in (sensor mode only) with the laptop on for a few hours and warmed up.


Attached Thumbnails
re: laptop is giving problems after it heats up-hdinfo.jpg  
My System SpecsSystem Spec
20 Sep 2015   #7
GokAy

Windows 7 Ultimate x64 SP1
 
 

Prime95 is actually a Mersenne Prime (mathematics) search software. But used for CPU benchmarking and torture tests as well. From its website:
Quote:
CPU Stress / Torture Testing

Prime95 has been a popular choice for stress / torture testing a CPU since it's introduction, especially with overclockers and system builders. Since the software makes heavy use of the processor's integer and floating point instructions, it feeds the processor a consistent and verifiable workload to test the stability of the CPU and the L1/L2/L3 processor cache. Additionally, it uses all of the cores of a multi-CPU / multi-core system to ensure a high-load stress test environment.
From the most recent "stress.txt" file included in the download:
Today's computers are not perfect. Even brand new systems from major manufacturers can have hidden flaws. If any of several key components such as CPU, memory, cooling, etc. are not up to spec, it can lead to incorrect calculations and/or unexplained system crashes.
Overclocking is the practice of increasing the speed of the CPU and/or memory to make a machine faster at little cost. Typically, overclocking involves pushing a machine past its limits and then backing off just a little bit.
For these reasons, both non-overclockers and overclockers need programs that test the stability of their computers. This is done by running programs that put a heavy load on the computer. Though not originally designed for this purpose, this program is one of a few programs that are excellent at stress testing a computer.

The Prime95 Wikipedia page has an excellent overview on using Prime95 to test your system and ensure it is working properly. The tips presented there should be helpful regarding how long to run the torture test and provide a solid guideline on how long to run the Prime95 stress test.

Performing a stress test is simple:
  1. Download the software and unzip the files to your desired location.
  2. Run the Prime95 executable and select "Just Stress Testing" when asked.
  3. The default options are sufficient to do a well balanced stress test on the system.
Normally, a CPU uses a feature called "Dynamic Frequency Scaling" to adjust its frequency to save power, produce less heat and prolong lifetime. Say, a 3 GHz CPU will run at 600MHz when idle and increase frequency in steps (called multiplier) when needed.

Windows 7 can manage the min/max of how much a CPU can go with Power Plans - Power Plan Settings - Change

Why High Performance? My reasoning is that, by setting CPU to 100% min and resetting the sensor readings, any throttling will show itself (even if Thermal Throttling row doesn't show it).

But do try with your normal power plan first: start HWInfo (sensors-only) and then Prime95, keep an eye on temperatures and CPU entries. Stop from the Menu of Prime95 when you do, and check notification area also to make sure it has stopped running.

re: laptop is giving problems after it heats up-hwinfo.jpg


My System SpecsSystem Spec
20 Sep 2015   #8
GokAy

Windows 7 Ultimate x64 SP1
 
 

Did you notice the problems happen while recording those stats? Run Prime95 while having HWINfo open.

By the way your Specs say: CPU dual core 2.1 gb each
But HWInfo only show a max of 1.73GHz, maybe it was not even run at 100%.
My System SpecsSystem Spec
20 Sep 2015   #9
reble

windows 7 home premium 32 bit
 
 
re: laptop is giving problems after it heats up

No there weren't any problems while recording the stats. I just changed the Power Plan to High Performance and the laptop is running a bit cooler now. I can past in the High Performance settings in if you need to see them. Also I have picked out 2 things on Ebay that I am going to get when I get my SSDI check on Oct 1st. A USB LED Light 2 Fan 9"-17" Laptop Notebook cooling pad adjustable cooler and a mini vacuum USB cooler air extracting cooling fan for pc laptop. Between the 2 they should keep the laptop at a safe temperature. What do you think

Quote   Quote: Originally Posted by GokAy View Post
Did you notice the problems happen while recording those stats? Run Prime95 while having HWINfo open.

By the way your Specs say: CPU dual core 2.1 gb each
But HWInfo only show a max of 1.73GHz, maybe it was not even run at 100%.
My System SpecsSystem Spec
21 Sep 2015   #10
GokAy

Windows 7 Ultimate x64 SP1
 
 

If it is running cooler, I wonder if cooling policy was changed in your previous plan. Mind checking the previous plan's settings?
re: laptop is giving problems after it heats up-power-options-details.jpg

Cooling pad will help for sure, I don't have experience with a vacuum fan.


My System SpecsSystem Spec
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