XPS M1330 CPU (T9300) temperature problem

Hello everyone, I'm using an XPS M1330 with a T9300 CPU. The problem I'm having is my CPU reports a big difference of temperature between the 2 cores. Core 1 is always higher by 8C (minimum) to 12C (maximum) compared to Core 0. I changed the factory thermal paste to AS5 and it still doesn't give me any changes. What else can I do now? Can anyone enlighten me? Thanks

 

you should go take a look at my temps
http://forum.notebookreview.com/showthread.php?t=285932
LOL

i think that is normal between the 2 cpu's

 

The temperature between cores has a minimal difference of 8C, far from yours. Worst, it even happens at idle, currently core 0 is 40C and core 1 48C.

 

held it by my fan..temps dropping.
definatley need a good notebook cooler.

i know..my temps are crazy!

 

Do you understand my problem actually? My description too confusing/misleading?

 

my m1330 gpu gets up to 97 c max LOL!
Looking forward to modding the heatsink soon.

 

Different cores on the cpu are assigned different tasks. In your case, CPU 1 is processing more tasks than CPU 0 and hence the temperature difference. Changing the thermal paste is good as it helps dissipate heat to the copper heatsink, whereby the fan cools it off. When you applied the new thermal paste, did you clean out the area where the air exhaust is? There's usually a lot of dust in there that may cause less air to travel across.

 

It happens even on idle state and this is not the only dual core CPU i own. My experience tells me that even if u stress any single core the temperature will not differ that much, let alone IDLE.

 

i am getting my XPS M1330 today. how to check temperature please. guide me

 

There might be many choices, but I personally use HWMonitor. It's small and no need to install it. Give it a try.

 

thanks.... i have tried it... and it is showing as attached image. is it good?

 

For Inspiron systems this is normal. Wait until you get your M1330!

 

Sometimes it is caused by an uneven heat sink. But another reason for this could also be that the cores are slightly different and operate at different voltages, some cores require more voltage to operate at the stock speed and some require less. So I think Intel just sets a high enough voltage for all cores to work which is probably why we can undervolt these cores and they still work. With different cores requiring different voltages to operate, they also produce different amounts of heat. I have a T9300 and my temps differ by 1-2C.

 

i think this is normal to have one core operating at a different temp. Although my m1330 cores differ from only 3 degrees, my amd dual core differs from 7 degrees. So that is my experience with dual cores. Probably, as one poster said, one cpu is handling the majority of os tasks thereby operating at a slightly higher temp. i wouldn't worry about it.

 

I've seen hundreds of embedded dual core machines, over about 8 different CPU families and I have never seen two with the same temp on each core! Sometimes it is couple of degrees, sometimes it is 8-10 degrees. Just the way it falls out. I think Intel specify the accuracy of the on-die temp sensors to +/-3C. IOW don't stress about it.

Oh and the designs I have been working on are designed to function at 55C ambient, both cores at 100% (prime 95 stress test)with no active cooling (huge heatsink only) and the CPU cores run at 95-100C all day every day, so don't start worrying if you particular machine is running at 65, this is perfectly acceptable. Oh and these embedded designs are in enclosed boxes that get so hot you cannot pick them up with your bare hands when they come out of of the temperature chamber where they have been for the last couple of weeks baking at 55C ambient! I see more failures of stupid things like ethernet controllers, capacitors and mosfets in the VRM's than the CPU's.

- Tim

 

Check attachment. this is for my new XPS 1330. what do you say?

 

Looks good. The idle temperatures, are slightly higher than usual which usually are around mid-upper 60's. I assume you left it on for a bit before you tried checking temps.

 

Maybe your OS is not made to use both cores.
http://forum.notebookreview.com/showthread.php?t=60416
or update to latest SP.

However, the 10C difference is normal between the cores.

 

well, its technically one physical chip, meaning its connected physically and the temp shouldnt be that wild unless ur running a program that doesnt use dual-core and takes 50% of processing power....

 

Um, all hardware is.. physical. Not sure what you mean by connected "physically". Temperature for the CPU is almost always lower than the GPU since the heatsink delivers the most cooling to the CPU in the design of the M1530 and M1330.

 

I don't expect my cores to report the same equal temperature since technically they are 2 different cores anyway. The reason I'm paranoid is because no matter what state the CPU is in it still differs at minimum of 8C which is ALOT to me (idle/moderate load/full load).

timfountain, you mention the word sometimes, have u gotten a difference of minimum 8C ALL THE TIME?

Oh and there's another T9300 running right beside me with both cores at 42C at idle and at most having 1C-3C difference between the cores at different states which is acceptable if u ask me. Having a situation like mine proves that it's barely normal since it never gets less than 8C different. It definitely is faulty somewhere it's just that I can't pinpoint what is and how to solve it. If anyone has faced the same situation as me please enlighten me.