High CPU temperature (Turion 64 ML-32)

Hello guys,

I'm running Prime95 right now on my laptop and the CPU temperature varies from 78°C-81°C. And that's at normal room temperature, I can't imagine what it would be like in the summer. Does anyone know if it is normal for a Turion 64 ML-32 to get so hot?

I bought the laptop (an HP DV5137eu) in september and I'm not sure if it was like this in the beginning, but I've certainly known about it for months, at least since it came back from repairs. The laptop has been repaired by HP twice (first they replaced the motherboard due to a misunderstanding, then they replaced the LCD bezel as they should have done the first time), so I think that if the temperature was a problem they would have picked it up, but I'm still not comfortable with it..

 

There was a program that could control the cpu fan. I can't remember how it's called. Anyone ?

 

The AMD you've got will produce a lot of heat unfortunately. I wouldn't recommend running Prime95 on your laptop as it stresses the CPU and will increase the temperature of the CPU to the kind of temperatures you've stated.

 

actually, for temperature under stress, that isn't too bad.

you may want to consider undervolting your cpu.

 

eji you have to admit that it's not good for a laptop CPU running at those temps

 

I use Prime95 for stability testing CPUs, not for calculating Pi or whatever it's used for.

When I run games or other CPU intensive tasks, I can hear the fan speed increasing. But most of the time, the fan speed seems to be set to low.

 

Why do you need to test stability, are you overclocking?

 

not really, if it were in the 90s, i would be a bit more worried....but even my t5500 gets into the 70s when i stress test it.

 

Lol you guys do like to run a risk.

 

Usually I would test stability to see if everything is stable. This time however, I just wanted to see how far the temperature would reach.

Prime95 should be able to run on ANY modern CPU without problems, that's the point of stability testing..

 

Guys, temps over 60C is bad for chips. You guys are really pushing it 80C is bad.

I have both my Opteron and my T5300 crunching numbers to fight cancer 24/7, and the highest temps are around 55-58C. They are undervolted, and the fans are always on full.

Keep pushing the temps, and then dont come cry to us asking why your laptop no longer works.

K-TRON

 

@ TomMe - I have several points to make on what you said. First, overclocking a laptop CPU isn't wise because it usually increases the temperature of the CPU. Second, using stress-testing on a CPU which is overclocked to test stability is going to cause the high temperatures you stated which is harmful to the CPU. So I don't understand why you are asking if the CPU is too high, what do you expect with the actions you are taking? Thirdly, yes a modern processor is certainly capable of stress-testing no doubt about that but stress-testing should only be carried out on a CPU with adequate cooling. At this time laptop cooling is still being developed as current designs can only dissipate a certain amount of heat comfortably. After that you are heating things up and if something goes like K-TRON rightly says don't ask us why. I really don't recommend overclocking with a laptop.

 

I am not pushing anything, my CPU just gets that hot during normal use. Btw, certain desktop GPUs can reach 100°C without any problems. Depends on the type of chip I guess.

Where did I say I overclocked my laptop? I don't overclock my hardware. To be absolutely clear: my laptop is not overclocked or otherwise modified.

I just noticed the temp of my HDD went up to 50°C during file copying.. Doesn't sound too healthy either. Please don't say I shouldn't overclock it.

edit: Well, perhaps I wasn't that clear in my previous reply..sorry.

 

So that temperature is in normal use or during use of Prime95? Are you sure that's not 100 degrees Fahrenheit? I've never heard of GPUs that reach 100 degrees Celsius and if they do they must be extremely inefficient in energy conservation. If your laptop is reaching temperatures of 80 degrees Celsius in normal use then it's the CPU and/or fans that are to blame.

 

81°C during Prime95, which I consider normal use.

Nope. nVidia GF7 GPUs have their slowdown threshold set at 130°C. And I've seen a 7950GT go up to 100°C without any problems.

I seem to remember reading somewhere that this Turion can go up to 95°C, but I can't find that webpage anymore. If that's so then I'm fine with 80°C, but I'm most concerned about the rise of temperature during the summer.

I'm thinking it's the design of the laptop as both CPU and HDD seem to get pretty hot. I've sent an email to HP asking about this, I'll probably get a reply tomorrow. The laptop is still under warranty, so if it is a problem, they can fix it.

 

Well nevertheless I would never stress test a laptop until the thermal design is improved. Each to their own.

 

I would think that mobile hardware is designed with that in mind. After all, I'm talking about a multimedia laptop here which should be able to handle quite a bit. And what about gaming laptops? Every laptop "should" be able to handle its CPU's full load. And if it can't, then it's either badly designed or broken, in my opinion.

I bet they stress test laptops in the factory before shipping. But they can miss something or perhaps the hardware gets damaged during transport, so I always stress test my hardware right after installation.

 

i've seen some T61 users reported this temperature during CPU stress test.

 

CPU tests by the manufacturers yes, IMO end-users no. I just think it's pointless and unnecessary stress on the CPU.

 

Thanks for the info, I'll see if I can find something about it.

I strongly disagree. I've had more than my share of hardware that was DOA or failed during warranty, and even an RMA that wasn't repaired.

Especially with a custom built PC, stress tests are useful for end users to determine the cause of a possible problem, among other uses.

 

I just received a reply from HP which is pretty useless. They recommend I update the BIOS and CPU driver or buy a laptop cooler.

Here's a nice screenshot. I'm not even running Prime95, just the AMD driver installation and my CPU temp goes up to 83°C...

I did notice one thing however, when idle the vCore is 1.000V (according to CPU-Z), but when I run the AMD driver installation it goes up to 1.450V.

edit: Hm, core speed at idle seems to be 796MHz compared to +/- 1800MHz at full load. Must be a driver feature (Cool 'n Quiet?). But still, temperature at idle is 60°C..

edit 2: If I interpret this document from AMD correctly, the maximum temperature seems to be 95°C after all. Can anyone confirm this?

 

The BIOS could be a good idea, I've seen it help on other laptops.

I'd see if you can take the laptop apart to get to the cpu. I have no idea how hard that is on a HP but there's something not right there. Those temps are too high. Yes your cpu can take it but that's how hard disks and optical drives get ruined - by consistent exposure to high temperature. I've seen if before many times.

 

you could also consider undervolting.

 

Good plan... RM clock should be able to do AMD.

 

Consistent high temperatures? From stress-testing perhaps?

 

The problem is, higher BIOS versions only contain an update for the QuickPlay function, not the CPU or anything else. And I've tried the CPU driver, no success.

I've asked HP if that will void my warranty, I still have some AS5 I can use. Internal fans seem to be working like they should though.

I'll look into that as well.

I don't know, it was like this right after I got it back from repairs (couple of weeks after purchase). I don't think I tested the CPU before that. It's a refurbished laptop, so don't know what they did to it.

According to S.M.A.R.T. data, the HDD seems to be new. I did an in-depth analysis of the HDD in SpeedFan:

I also noticed the maximum HDD temperature ever for my HDD was 55°C, which seems to be in line with the SpeedFan reports. And according to Seagate, the maximum allowed drive case temperature is 65°C.


CPU temperature rises and drops very quickly when switching from idle to load and vice versa. I've been gaming for 2 hours now, maximum was 82°C..so at least it stays in the low 80s. Temps don't seem to be dangerous YET..