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Thread: i5 2500k Stock Cooler problem

  1. #1
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    Default i5 2500k Stock Cooler problem

    I'm trying to use a 2nd hand i5 2500k with the stock cooler it came with. The CPU was originally used with aftermarket cooler, and the stock cooler sat unused in it box for almost 3 years. I cleaned the CPU, removed the hardened intel TIM from the cooler, found that the copper under it became black by reacting with air for long time, scrubbed it off with a steel wool scrubber, applied some thermaltake TG-2 and attached them to the mobo.

    Idle temps are at 37-44 degrees. And load temp with prime95 goes over 90+ degrees in under 5 minutes.

    There are two things I've noticed. First, the heatsink is as shallow as my old Core2 Duo, which was only 65watt compared to 2500k's 95watt TDP. I remember 95watt Core2 Quads having much thicker heatsinks. Second, I think the mounting pressure is little less, as I had to use a tiny bit more TIM to get it spread over full compared to my old Core2 Duo.

    My question is, which of the two is contributing to this high temp? Is it the heatsink being shallow? If that is the case then why would intel supply inadequate cooling that cannot keep the CPU on safe temp range even with stock speeds? Or is it the less mounting pressure? In that case was the low mounting pressure by design, or using the CPU with aftermarket cooler for long time + scrubbing the copper base with steel wool could cause it?

    Finally what can I do until I get a good aftermarket cooler? Should I try increasing the mounting pressure with some paper shims between the heatsink and the plastic frame?

  2. #2
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    Quote Originally Posted by Swapnil View Post
    I'm trying to use a 2nd hand i5 2500k with the stock cooler it came with. The CPU was originally used with aftermarket cooler, and the stock cooler sat unused in it box for almost 3 years. I cleaned the CPU, removed the hardened intel TIM from the cooler, found that the copper under it became black by reacting with air for long time, scrubbed it off with a steel wool scrubber, applied some thermaltake TG-2 and attached them to the mobo.

    Idle temps are at 37-44 degrees. And load temp with prime95 goes over 90+ degrees in under 5 minutes.

    There are two things I've noticed. First, the heatsink is as shallow as my old Core2 Duo, which was only 65watt compared to 2500k's 95watt TDP. I remember 95watt Core2 Quads having much thicker heatsinks. Second, I think the mounting pressure is little less, as I had to use a tiny bit more TIM to get it spread over full compared to my old Core2 Duo.

    My question is, which of the two is contributing to this high temp? Is it the heatsink being shallow? If that is the case then why would intel supply inadequate cooling that cannot keep the CPU on safe temp range even with stock speeds? Or is it the less mounting pressure? In that case was the low mounting pressure by design, or using the CPU with aftermarket cooler for long time + scrubbing the copper base with steel wool could cause it?

    Finally what can I do until I get a good aftermarket cooler? Should I try increasing the mounting pressure with some paper shims between the heatsink and the plastic frame?
    1. Intel Stock coolers are absolute piece of ¤¤¤¤, the surface area is not enough to provide proper cooling for a 95W or higher TDP processor. And this cooler's performance is not always the same, some of them are slightly better, some of them are not.

    2. Pressure could be a reason, if you can't get enough pressure it won't conduct that much.

    3. You have to clean the contact place thoroughly.

    4. TG-2 is not that good either, I had used CM paste earlier, which kept my CPU at 62 degree under load with 4.2GHz OC, now even at 3.8GHz the TG-2 is keeping it at 65 degree C.

    Just get a 212X, you can even OC this processor with that cooler and 212X won't cost you an arm and a leg.'

    Good luck anyway!

  3. #3
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    Quote Originally Posted by Swapnil View Post
    I'm trying to use a 2nd hand i5 2500k with the stock cooler it came with. The CPU was originally used with aftermarket cooler, and the stock cooler sat unused in it box for almost 3 years. I cleaned the CPU, removed the hardened intel TIM from the cooler, found that the copper under it became black by reacting with air for long time, scrubbed it off with a steel wool scrubber, applied some thermaltake TG-2 and attached them to the mobo.

    Idle temps are at 37-44 degrees. And load temp with prime95 goes over 90+ degrees in under 5 minutes.

    There are two things I've noticed. First, the heatsink is as shallow as my old Core2 Duo, which was only 65watt compared to 2500k's 95watt TDP. I remember 95watt Core2 Quads having much thicker heatsinks. Second, I think the mounting pressure is little less, as I had to use a tiny bit more TIM to get it spread over full compared to my old Core2 Duo.

    My question is, which of the two is contributing to this high temp? Is it the heatsink being shallow? If that is the case then why would intel supply inadequate cooling that cannot keep the CPU on safe temp range even with stock speeds? Or is it the less mounting pressure? In that case was the low mounting pressure by design, or using the CPU with aftermarket cooler for long time + scrubbing the copper base with steel wool could cause it?

    Finally what can I do until I get a good aftermarket cooler? Should I try increasing the mounting pressure with some paper shims between the heatsink and the plastic frame?
    Buy Deepcool Neptwin for 3.3k. MUCH MUCH better cooler than CM 212X.

  4. #4
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    Quote Originally Posted by redwan hasan View Post
    Just get a 212X, you can even OC this processor with that cooler and 212X won't cost you an arm and a leg.'

    Good luck anyway!
    Quote Originally Posted by VANGUARD View Post
    Buy Deepcool Neptwin for 3.3k. MUCH MUCH better cooler than CM 212X.
    I was planning to get a Thermaltake Water 3.0 Performer C for 4.5k. Would that be better than 212x or Neptwin? I think it's the same OEM model as Corsair H55.

  5. #5
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    Default

    Quote Originally Posted by Swapnil View Post
    I was planning to get a Thermaltake Water 3.0 Performer C for 4.5k. Would that be better than 212x or Neptwin? I think it's the same OEM model as Corsair H55.
    TT water 2.0 is "much much" better than a 212X/Neptwin i guess.
    http://www.hardwaresecrets.com/deepc...oler-review/6/

    for for water if you can, and if not, get a anything you want.

  6. #6
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    Quote Originally Posted by Swapnil View Post
    I was planning to get a Thermaltake Water 3.0 Performer C for 4.5k. Would that be better than 212x or Neptwin? I think it's the same OEM model as Corsair H55.
    I found air cooling much less hassle free

  7. #7
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    Update: Increased the mounting pressure a bit by putting some shims. Still goes up to 90+, but a bit slower now. I guess I'll live with that for now.

    Quote Originally Posted by VANGUARD View Post
    I found air cooling much less hassle free
    I believe both has their merits. Air coolers are easier to mount, and a bit quieter. But AIO liquid coolers are easier to clean.

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