high CPU temperatures;upto 100 degrees celsius

[aaryan]

My laptop suffered a hard drive crash last week. I got the HD replaced
earlier it was a toshiba 500gb 5400rpm HD now it is a HGST 750gb 7200rpm.
after i setup the whole laptop properly with all the drivers and all the softwares including basic utilities, anitvirus etc. the fan seems to be running all the time and specially when browsing using chrome it begins to sound very loud which it doesnt used to earlier(before the hard disk crash).

Now to check the CPU temperatures, i downloaded SPECCY.
To my surprise, the MOBOs temperature is way below the normal(thanks to indian winters ) but at the same time the CPU temp(all the 4 cores) is showing me 100 degrees celsius, though the base of my laptop is not even close to warm. Even the GPU cores are at normal temperatures.

I have attached two screenshot of SPECCY, indicating high core temps and high bus speed as well and the other showing way too normal temperatures for the MOBO.
I need suggestions whether SPECCY is showing incorrect measurements(which it usually doesnt) or there is some other problem which i should worry about.



configuration:
windows 7 home basic 64 bit
AMD A-8 4500 M
4GB single channel DDR3 RAM
HP184A single socket FT1 motherboard
512MB ATI AMD Radeon HD 7640G + 7670M Dual Graphics (HP)
1024MB ATI AMD Radeon HD 7670M (HP)

 

[carwiz]

Could be that the heatsink was knocked off the processor when the drive was replaced.

 

[aaryan]

Went to the hp service centre..they applied the heat sink pasting again! But didnt work..
Still elevated core temperatures :-(
Now only one option left, reinstalling the os! :-(

 

[aaryan]

reinstalled the OS. still the CPU temperatures are elevated.
this means that this is not a problem caused by wrong drivers installed.

 

[whs]

There is a reason that they put 5400RPM drives into laptops - it's heat. You can solve the problem by replacing this 7200RPM HDD with a SSD - that is how I solved the heat problem in one of my laptops.

 

[aaryan]

hey WHS are you sure that replacing the 5400 rpm HD with a 7200rpm will increase the heat??
i downloaded AIDA64 to monitor the stats! and i got really confused!
can you explain the sensor temperatures?

 

[theveterans]

AMD has bugs with HWMonitor. Use Core Temp or Speed Fan to see the correct temperature values. It should be around 45 - 55 °C

 

[LMiller7]

I don't think that those very high CPU temperatures are valid. I would think that the CPU would shut down long before such temperatures were reached. Unfortunately there are no firm standards in place for reading CPU temperatures with software. The end result is that some combinations of software and hardware will produce invalid readings.

 

[aaryan]

LMiller7 thanks for such a positive reply, indicating these results to be invalid.
but are you so sure? that multiple softwares will provide invalid results ?
ive tried 4-5 softwares all of them are showing elevated temperatures for the cores.

 

[whs]

I think you have a heat problem and it comes from the disk. I have seen that before.

 

[MilesAhead]

My guess would be WHS is right. But one thing you could do is try Core Temp. If your AMD processor is anything like my Phenom I then the temp reading cannot be taken at face value. Supposedly what matters is not the degrees c but the difference between that reading and T-JMax. They seem to want to make it rocket science.

edit: I'm not an overclocker. So I'd bet on WHS.

 

[aaryan]

then i should test it with a 5400rpm one...will get back to the post after trying that

 

[aaryan]

i just want to confirm onto the readings shown by these 3rd party applications.
and this confirmation can be done by cross checking it with the BIOS temperature readings.
unfortunately, insyde BIOS F.26 doesnt show temperature readings :S
ohhh god i feel so cursed :'(

 

[aaryan]

from my opinion! i do not want to rely onto these 3rd part applications like coretemp speedfan speccy etc.
because there are ought to be some discrepancies when there is AMD :|
so im going to contact HP tmrw! going to ask them a method on how to monitor CPU temperature! if they give me a valid method!il move forward in this direction!
otherwise on monday! im going to get the 7200 rpm HDD replaced with the OLD one(means the HDD with the same specs as earlier), and then will see if it does any good!

if anybody wants to give some any other sugesstion! please do it ASAP!

 

[LMiller7]

LMiller7 thanks for such a positive reply, indicating these results to be invalid.
but are you so sure? that multiple softwares will provide invalid results ?
ive tried 4-5 softwares all of them are showing elevated temperatures for the cores.

I never meant to imply that your temperatures are normal, only that the current readings are not valid. You probably do have a heat problem. Hard drives don't normally produce a great deal of heat, but with the confined space and limited ventilation of a laptop it doesn't take much to cause a problem.

 

[aaryan]

lmiller, even i dont say the temperatures are normal.
they are nowhere near to normal! but i was feeling content after you pointed out that, these values can be invalid.
regarding the ventilation, i need not comment and you need not doubt on it! got the best ventilation and with these readings the laptop fan is blowing out cool wind! i am confused.. that if the processor would be at such high temps then the fan would have been blowing hot winds and that too at very high speed, but the fan seems to be idling plus the base of the laptop is cool! i pretty think that these values can be invalid! that is why i want the BIOS temperature reading! because that would be the true legitimate ones! but i have insyde f.26 bios that doesnt show/hidden the menus for temperature reading!
i've contacted HP for suggesting a method to monitor the temperatures. Again repeating, i dont want to rely on these 3rd party appliactions!
thanks for replying!

 

[carwiz]

I've never seen a disk heat the CPU. If a drive is getting hot enough to affect the cabinet temperatures, it's probably hot enough to shutdown. Do those temps show that high right after startup? What does the BIOS have for temps? Having too much paste between the CPU and heat sink is worse than having none.

 

[MilesAhead]

They may have made changes at AMD but I think the whole point of using the difference you get when subtracting the reading of a program like Core Temp or another, from T-JMax, is because AMD doesn't want to just put out a straight forward number. Probably so you won't overclock it with confidence. It's kind of strange. Like having a speedometer on a car that doesn't show the real speed in MPH or KPH but gives a coefficient you have to plug into a formula using the secret number in the car's computer. It's kind of silly seemingly.

 

[aaryan]

CARWIZ, im thinking just the same! and yes its right after startup and if such high temps were there, machine should have switched off on its own. and ive got the worst BIOS INSYDE! that doesnt show the CPU temperatures! and im not confident enough to MOD it, lappy may get bricked! :S suggest some other method to monitor the temps, which can show valid values!

MILES AHEAD..im sorry to disappoint you, but im not relying onto the third party tools!

 

[carwiz]

If you are running more than one monitor, they can get confused and even crash the CPU. The better monitors will convert AMD's DT to relative temperature. The fact that the board temps, which are straight sensors, reflect more sensible numbers leads me to believe the monitor is faulty.

Have you tried HWiNFO? HWiNFO, HWiNFO32/64 - Download