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i7 720QM Laptop Processor Running Insanely Hot!

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Hello everyone,

This is my first time on the site, so please forgive me if I do anything wrong!

I have a Dell Studio 1747 Laptop with a i7 720QM Processor @ 1.6 GHz, 4 GB of RAM, and an AMD Radeon Mobility HD 5670 dedicated graphics card with 1GB of RAM. I never really picked up on it, but ever since hosting Minecraft on my laptop, I noticed how extremely hot it would get during play, even to the point of crashing. I began to monitor my core temperatures with Realtemp. I noticed, after about two minutes after Windows loads, that my idle temperature on all cores are around 70 Celcius. This is with literally nothing loaded. Opening up Google Chrome will bring it to about 80. When under high load, such as Minecraft and its server client, it climbs to around 90-95 celcius. I am astonished that these temeraptures are this high. I have tried clearing out the heatsink and fan intake with compressed air to little effect. With my warranty being up, I am looking for any solution to help this problem, since I know running a CPU that hot all the time could shorten its lifespan. Also note that I have never overclocked this CPU. Any help would be appreciated. Thanks!

– Justin Katz


1 Answer

  1. Run msconfig and go to the Start Tab, uncheck all except Microsoft and your antivirus program, Apply and restart the machine (you can add back any program later if you find you need it always on). This will remove many programs from starting with Windows and running in the background. If this makes a significant difference, it will also improve battery life.

    It may be obvious to many, but I have to ask, are you using the ‘laptop’ on a desk or hard surface or on your ‘lap’ or bed? Using a laptop on any soft surface will block the bottom vents and any along the bottom of the sides and cause a raise in temperatures. Use it on a desk or get a laptop cooling pad with short legs and a fan to bring the air under the machine. Even of you DO use it only on your desk, a cooling pad with fan may offer some help.

    I assume that when you cleared out the heat sink and fan area you also made sure that there was no dust or debris blocking any of the vents or other cooling ducts.

    Make sure that Windows power settings are set as for a laptop and not for a desktop.

    Reset BIOS to defaults or ‘optimal settings’ if this is available, then check in BIOS set up that all power saving features, CPU, and memory settings (at least) are correct.

    Take it slow and try these in order to see what/if any has some effect and if it is significant enough, then go on. If there is little or no help here, then you may need to reset (or have it done professionally) your heat sink (cleaned and with a fresh application of the correct amount of thermal compound). Again, if you are not knowledgeable about this, ask for advice, if you are not comfortable doing it, get help from a pro. This is your last stop and should only be done if you are sure the heat is not getting out of the CPU fast enough (thermal transfer) or nothing else helps.

    You have to be a little bit crazy to keep you from going insane.

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