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Thread ID: 138846 2015-01-31 19:00:00 CPU temperature bk T (215) Press F1
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1393453 2015-01-31 19:00:00 I'm running this CPU stress test using BurninTEst V7.1 Pro Evaluation Version - Max temperature recorded was ~75 degC, looks pretty good!

But Hardware monitor126x64 shows it's 105 deg C! Which should I think is correct?

I just replaced the CPU heatsink fan with a new one for this HP laptop; I have also clean the old thermal paste and re-applied new paste and it's running very cool - I could feel it from the air vent outlet.
bk T (215)
1393454 2015-01-31 20:18:00 I'd suggest it's probably the 75 degree one.

Try grabbing Speccy to compare:
www.piriform.com
Chilling_Silence (9)
1393455 2015-01-31 21:03:00 I think something is not right - Speccy shows this:

6180

It's idling at almost 100 deg C ?
bk T (215)
1393456 2015-01-31 23:02:00 Dismantled everything, redo the thermal paste, put it back, run BurnInTest, passed with - ~74 C but Speccy showing 123 C runing side by side.

This lapie was running very hot (I could feel it) and upon dismantling, found that the fan was not spinning freely and the vent clogged up with dust. Now the fan has been replaced with a brand new one, vents all cleared; and it's running very cool, from my physical obsersation.

Any explanation?
bk T (215)
1393457 2015-01-31 23:59:00 Not all hardware works with all generic monitoring software, see if you can find a CPU temp in the BOS to see a better indication of the idle temps and use whatever monitoring software agrees the closest with that.
You could also see if the laptop manufacturer has software that'll do the job. If it was actually hitting 123 it would have shut itself down I'm pretty sure.
dugimodo (138)
1393458 2015-02-01 00:35:00 There's no temperature reading in the BIOS - it's just a very simple and basic BIOS Hp machine.

I actually bought this machine with over-heating issues as I was thinking the very most, just change the cooling fan and cleaning up should fix the problem.

Anyway, I only paid $30 for this HP Pavilion G6-2208ax with the following specs:

Just over 1 year old, 4GB RAM, 500GB HDD, AMD A6-400M APU with Radeon HD graphics 2.70GHz, Windows 8.1

On top of the $30, I also bought the heatsink fan online for $15 with freight included; all in uder $50.
bk T (215)
1393459 2015-02-01 01:37:00 For what it's worth, Core Temp gives the same figure as Speccy on my system (picture)

(I hadn't met Speccy before. I was hoping it would give a lower reading than Core Temp. I've accidentally been running my CPU at 96° according to Core Temp)
BBCmicro (15761)
1393460 2015-02-01 08:24:00 Could it be that the sensor of the CPU is faulty, not giving the correct temperature?

I'm running Furmark CPU burner right now, and Speccy is reading 132 Deg C (LOL) ; the fan is working correctly (from the sound it generates and air flowing out). The machine is not even hot, reasonably warm.

If the temperature reading is correct, the CPU could have shut down the machine at this temperature, right? Have been running for 40 minutes, now.
bk T (215)
1393461 2015-02-02 06:44:00 There's no way it would be operating properly at 132 degrees. It would be cooking to death.
Unfortunately, a lot of brand-name computers, especially laptops, have hopelessly inaccurate or inaccessible (via software) temperature sensors which mean the readouts never make sense or you don't even get one.

In a laptop the temperature and fan control are all read and handled by the BIOS or EC, and it is expected that you don't care and don't need to know what they are.

Another thing that can be the case, when you have one temperature that makes sense and another that makes no sense (in the same software, probably not in your situation) is the fact that the hardware monitor chip is often capable of reading more sensors than they hook up to it. One might be a valid temperature and the rest garbage. But if the software knows the chip supports X amount of inputs, it often tries to read all of them.

I have a board on which monitoring software measures CPU and ambient temperature very sensibly, but also displays a third, 'non-existant' readout of -128 degrees...


if you want to get really pedantic, buy a thermocouple probe and stick it under the heatsink.
Agent_24 (57)
1393462 2015-02-02 08:32:00 Getting really pedantic some ten years ago I bought some 0.5mm thermocouples from RS, drilled a 0.6mm hole through the heatsink, bonded a thermocouple in and lapped the surface flat so that the TC would be in contact with the CPU surface.

pressf1.pcworld.co.nz

The TC results are towards the end of the thread......if you get that far...........:)
Terry Porritt (14)
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