P7450 (CPU) temperatures

This problem has now been solved. Thank you all very, very much!


Hello. I am using a Sony Vaio VPC-CW1S1E laptop.

My CPU is P7450. The maximum operating temperature is 90'C.

I ran 3dmark06 to test my performance and let AIDA64 log my max. temps.

My maximum Core temperatures were 103/98'C, but the maximum CPU temperature was only 87'C.

My cores tend to run 80+ Celcius on desktop and my CPU itself 70+. Is the CPU temperature the one that maximum operating temperature is refering to?

Are these temperatures fine and normal?

Thanks for help.

 

25 watt Penryns shouldn't run that hot, though benchmarks are extremes which should never be considered normal activity.

Try using compressed air and blowing out the fan/heatfins/heatsink of dust.

 

Also repaste the cheap thermal paste sony uses with IC Diamond 7 or Artic Silver 5. Get a cooling pad too.

 

I would actually say it is a bit early for the cooling pad. Start with cleaning your vents, then if it does not help repast.

By the way, what is your room temprature?

 

My room temperature is around 22'C, but I have a heater right under my laptop (under the table). It wasn't turned on though when I tested the temperatures.

 

I see, have you tried to clean your vents? That room temprature is quite normal. And what do you mean by 'battery under your laptop'? Your laptop battery?

 

I will try to clean the vents once I get home and tell you the results. (Using my mobile right now)


And sorry about that battery, I messed up with words (I am not a native english speaker). I meant a heater

(For some reason we only have one term meaning the both things and as I made the first reply in the morning, guess the rest.)

 

Okay, I'm waitin for your results, and don't worry, I'm not a native english speaker either

And yeah, the heater, if it is turned off, it shouldn't matter?

However, try that and let us know

 

Intresting results...

I opened the whole laptop. There was not really much dust inside but anyways I cleaned it with a hoover, a small paintbrush and a can of compressed air.

I booted up the laptop and ran 3dmark06, (I did not even close those unnecessary services I usually do before running it) and I got a score of 6130?!. My previous best was 3800... I do not see how heat only could make this large difference unless it causes the CPU to reduce power to reduce heat output.

The most intresting is that the max temps (in the stress test!) were 64 for the CPU and 76/75 for the two cores. Usually my idle temperatures are larger than that!

Anyways, this time the computer was cool when I started but regardless, very intresting results. I do not have time to do more testing today, but tomorrow I will do some extra tests.

 

The heat could cause your GPU to downclock which would decrease your score dramaticly. However, I'm glad your problem is solved!! And, those tempratures are normal My 9600M GT has a maxtemprature of 90C, overclocked

 

I recommend you open up your laptop, re-do the thermal compound between the CPU and its heatsink (of course cleaning out the old first) and also cleaning out any dust built up in and around the ventilation slots.

Not only are those temps very high but the CPU fan must be on all the time causing an altogether overly loud laptop.

 

@LaptopUser Thanks for help, but the problem is now solved.

My gaming performance has improved (A LOT, almost doubled my 3dscore and framerate!), and the stress temperatures are now lower than my idle temperatures used to be, even when I now have kept the computer on for few hours. It is like I would have a totally new one!

Wonderful how much just a small amount (just a thin layer) of dust can do.
Have some rep, my dear Tunay. I owe you them.

I wonder if I could even slightly overclock this thing?

 

Unfortunately you can't really overclock that laptop. The only thing you could try it to find out what PLL chip it uses and then via SetFSB (some software) tweak the FSB higher thus forcing the CPU to run at a higher frequency (CPU multiplier x bus frequency = CPU frequency).

Even a small layer of dust can impact temperatures in laptops because the fans don't push all that much air and as such the air flow can't blow through the dust (even if it's very light).

 

Hehe, no problem mate, I'm glad I could help!

 

You could try finding your PLL and see if it supports SetFSB.

But what do you plan on doing with your laptop? It would be safer just getting another 1066 FSB processor like a P8700, but gaming wise an additional 400 MHz won't give you higher frame rates.

 

Sony would lock PLL so you need to do pin mod. Your'e also better off getting a new T9600 or something. That wuld be better too.