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OVerheating, is my processor bad?

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January 30, 2012 9:54:00 PM

Hi, I have an Asus N70sv-B1 Notebook and am wondering if my processors have gone bad or something else has. What it most commonly does is freeze at random times forcing me to hard boot it. Also what happens is I've experienced hardware failures a couple times (blue screen of death) and gaming on my laptop used to be spectacular but now something has gone wrong causing games to run very slow on minimal graphics settings. I've downloaded SpeedFan and the temps are GPU 81C, Temp1 107C, Core 0 and 1 are 96C and the only "normal" temp is the HD0 at 43C. I have a couple more questions on top of that: What's causing this massive overheating? Is it the power supply? Is it my heatsink/fan? Is my mobo bad instead of my processors?

Specs:
- Intel Core 2 Dou P8700 Processor
- 4.0 GB DDR2 SDRAM
- 320 GB HDD / 7200 rpm
- NVIDIA GeForce GT 130M - 1.0 GB DDR2 VRAM
- Windows Vista 64-bit
a c 184 à CPUs
January 30, 2012 9:55:30 PM

Get a can of compressed air and clean the laptop out.
a b à CPUs
January 30, 2012 10:01:27 PM

Im pretty sure you just got a load of dust inside the laptop, do what "amuffin" said and it should be good again.
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January 30, 2012 10:42:46 PM

I cleaned the fan and heatsink and it made a minimal difference before making this post but the temps are still way to high.
a b à CPUs
January 31, 2012 12:41:51 AM

Your fan/s could be going out. Check to see if they are spinning up correctly.
a c 140 à CPUs
January 31, 2012 1:54:28 AM

If you cleaned the fans and it didn't do much then the next thing I would look at is the fans. Also it would help if you could post the exact BSOD stop error. That might help figure out the problem too.
a c 184 à CPUs
January 31, 2012 3:13:59 AM

Did you apply thermal paste?
January 31, 2012 3:30:51 AM

Wish I would've known to keep the BSOD code I didn't know you could diagnose your computer with it until now :\ If it helps I do use a cooler so even if my cpu fan's aren't working this should lower the temp significantly shouldn't it? Although, it doesn't so I don't know.

amuffin i didn't remove the heatsink i just cleaned the dust out. Would it be beneficial to remove it and reapply new thermal paste?
a c 140 à CPUs
January 31, 2012 3:35:55 AM

You didn't answer Muffin. Did you take remove the heatsink at any time and if so did you re-apply thermal paste. Also download CPUID HW monitor and tell us what your temps are. Then go into a game and monitor the temps again and see if they go high.
January 31, 2012 3:48:49 AM

Temperatures
-THRM at 103C

Intel MobileCore 2 Dou P8700
-Core0: 97C
-Core1: 99C

ST9320421AS
-Assembly: 44C
-Air Flow: 44C

Temps stayed the same pretty much when i went into a game.
a b à CPUs
January 31, 2012 4:10:59 AM

More then likely has old thermal paste on it that's turned to dust
a c 140 à CPUs
January 31, 2012 4:41:41 AM

I really think your problem is overheating. 97 to 99 degrees C is very high for either idle or under load. I would take the heatsink off and re-apply thermal.
January 31, 2012 1:05:54 PM

Is there a guide on how to take off the heatsink and reapply thermal paste on here? And if I do it myself should I be worried about grounding myself as to not kill my computer?
a c 140 à CPUs
January 31, 2012 3:48:53 PM

http://www.youtube.com/watch?v=fRRWbQUqW1Y

As for the second part you always want to be aware of ESD (electro static discharge). You can get an ESD wrist strap but if you don't as ling as you touch the metal case before you touch any hardware you should be ok.
February 1, 2012 10:18:20 PM

Would it be a smart thing to replace my power supply right now too? The laptop is about 2.5 years old and I'm not sure if it's gone bad or not.
February 12, 2012 11:17:58 PM

Ok so my MX-2 thermal paste came in yesterday and I reapplied it but it doesn't seem to have made a difference that much (I've applied it 3 times and this 3rd time seemed to have made the biggest impact). I didn't use too much on the 3rd time, I over did it on the 2nd time and temps went to about 80-90C when I just browsed so I got rid of the paste asap when that happened. Temps are about 45-55C just browsing the web now and will probably be 80-90 under intense graphical games.

One reason I think it was hot BEFORE I reapplied it was because there was a very thick layer of thermal paste from the stock and the thermal pad covered the entire bottom of the heatsink. But the reason that it still might be overheating still is because I was getting angry after scrubing the pad for an hour with lighter fluid the pad still wouldn't come off and so I finally said screw it and scrapped it off.

...now there is scratches on the heatsink after the scraping yes, but there are no scratches in the middle where the heatsink makes direct contact with the thermal compound (the pad wasn't as thick in the middle where the original paste was so it successfully came off).

I'm just wondering what's still going wrong now?

Also, I was going to reapply paste to my graphics card but there's an entirely different heatsink for it and when i removed the graphics card from the motherboard there was layers and layers of *** connected to the graphics card and I didn't want to pull anything off my card that would harm it so I left it as it is right now. I also needed to remove the heatsink with the graphics card sanctimoniously because the heatsink is smooshed between all these layers.

I'm not sure if this is correct but my motherboard is an Asus f70 main board rev:2.0 (That's what it said on it).
February 12, 2012 11:24:07 PM

Oh and one more thing: my heatsink fan doesn't seem to be working and when it does turn on it makes a lot of noise even when its spinning slowly. It looks like its caught on something or its just flat out broken but I do have a notebook cooler I'm using which keeps the airflow temps at 30-38C. So I think I should order a new one from Asus or something along with a new heatsink. And I'm questioning weather I need a new and better notebook cooler with one huge fan. I'm currently using a 'Notebook Cooler NC-820'. I ordered this on newegg along with my Asus N70sv.
a b à CPUs
February 13, 2012 2:53:00 AM

You don't need a new heatsink, just a new fan. A chilling pad isn't designed to handle heat dispersion if your main fans fail. They are nothing more than secondary cooling.

Also, this is how you PROPERLY remove thermal grease.

Step one: Get several coffee filters (nice ones)
Step two: Wipe excess grease off with coffee filters
Step three: Using 95/99% rubbing alcohol, damp the filters and rub out the remaining grease. Change areas of the filter and add more alcohol until eventually all the grease is gone from the heatsink and the processor.

A lint-free microfiber cloth can also help. NOT LIGHTER FLUID! ><;

Anyway, just order a new processor fan. Your PSU is probably fine, so no need to mess with that.
February 13, 2012 1:06:43 PM

I used 91% isopropyl alcohol on the processor. The lighter fluid was a tip off someone to remove hard thermal paste off a heatsink.

Should a processor fan run loud like mine has before? I understand it may have been running loud before because my temps were 90-100 celcius before so it was probably getting overworked to the point of breaking.

Also, what is a very good laptop cooler I could purchase that'll keep airflow temps around 20 degrees or less?
February 13, 2012 1:57:13 PM

umike90 said:
Hi, I have an Asus N70sv-B1 Notebook and am wondering if my processors have gone bad or something else has. What it most commonly does is freeze at random times forcing me to hard boot it. Also what happens is I've experienced hardware failures a couple times (blue screen of death) and gaming on my laptop used to be spectacular but now something has gone wrong causing games to run very slow on minimal graphics settings. I've downloaded SpeedFan and the temps are GPU 81C, Temp1 107C, Core 0 and 1 are 96C and the only "normal" temp is the HD0 at 43C. I have a couple more questions on top of that: What's causing this massive overheating? Is it the power supply? Is it my heatsink/fan? Is my mobo bad instead of my processors?

Specs:
- Intel Core 2 Dou P8700 Processor
- 4.0 GB DDR2 SDRAM
- 320 GB HDD / 7200 rpm
- NVIDIA GeForce GT 130M - 1.0 GB DDR2 VRAM
- Windows Vista 64-bit



That temp is dangerous to your CPU. Is the fan still working? if not replace it with a new one.
February 13, 2012 4:27:14 PM

aqe040466 said:
That temp is dangerous to your CPU. Is the fan still working? if not replace it with a new one.


Yes I know. Since then I've dropped the processor temps by 50 degrees and about 20 degrees gaming.
a b à CPUs
February 13, 2012 5:01:29 PM

I can't say I know of a great laptop chilling pad. I use a dual fan model and it works great. But again, they aren't a life saver, they are secondary cooling.

Your CPU fan will be audible when it is spinning up at max, but it shouldn't be 'loud'. Of course, we all have our own definitions of what loud is. On my C2D based laptop, the fan is incredibly quiet.
February 13, 2012 7:57:48 PM

I'm trying to find where Asus sells special parts and I can't find it. Can anyone help? I need another fan for my Asus N70sv notebook.
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