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Talal Itani
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 Posted: Sun Apr 22, 2007 1:03 pm Post subject: Heat Sink Compound Necessary? |
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I want to replace the Intel stock fan on my 478 Pentium 4, because I need to
overclock heavily. Is heat sink compound needed, recommended? Thank you.
Talal Itani |
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Skeleton Man
Guest
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| Posted: Mon Apr 23, 2007 3:19 am Post subject: Re: Heat Sink Compound Necessary? |
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| Quote: | You ABSOLUTELY have to use thermal paste or compound, or your CPU will
overheat and fry.
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I think that's exaggerating it a little.. their CPU would certainly run
hotter than it should, but to the point of destruction ? I have my doubts..
Chris |
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DaveW
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| Posted: Mon Apr 23, 2007 3:19 am Post subject: Re: Heat Sink Compound Necessary? |
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You ABSOLUTELY have to use thermal paste or compound, or your CPU will
overheat and fry.
--
DaveW
___________
"Talal Itani" <titani@verizon.net> wrote in message
news:DYIWh.4971$Fs6.2976@trnddc03...
| Quote: |
I want to replace the Intel stock fan on my 478 Pentium 4, because I need
to overclock heavily. Is heat sink compound needed, recommended? Thank
you.
Talal Itani
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kony
Guest
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| Posted: Mon Apr 23, 2007 11:43 am Post subject: Re: Heat Sink Compound Necessary? |
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On Sun, 22 Apr 2007 23:18:00 -0400, "Skeleton Man"
<invalid@guestwho.com> wrote:
| Quote: | You ABSOLUTELY have to use thermal paste or compound, or your CPU will
overheat and fry.
I think that's exaggerating it a little.. their CPU would certainly run
hotter than it should, but to the point of destruction ? I have my doubts..
Chris
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It's not absolutely necessary to use thermal compound at all
either, (three?) years ago I reported on a test where I took
a ridiculous amount of time to lap a heatsink *VERY* flat
and had practically identical temps even on a flipchip
Athlon XP. Today's heat spreaders aren't as flat as the
flipchip cores bare, were, but if they were lapped very well
the result should be equally good. However, the main point
might be what was written above, "a ridiculous amount of
time", when otherwise all one has to do is spend a few
seconds applying thermal compound to achieve the same
results. Plus, you can't lap a CPU w/o voiding the
warranty. |
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Plato
Guest
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| Posted: Mon Apr 23, 2007 12:15 pm Post subject: Re: Heat Sink Compound Necessary? |
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Paul wrote:
| Quote: |
I want to replace the Intel stock fan on my 478 Pentium 4, because I need to
overclock heavily. Is heat sink compound needed, recommended? Thank you.
You need a good thermal path from the top of the CPU, into the heatsink.
So, yes, thermal compound or a thermal pad should be used. The
thermal compound displaces air, and air is a good insulator.
Only a thin layer is required, and you don't want to use so much,
that major quantities squirt out the side of the joint.
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Agreed...
--
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kony
Guest
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| Posted: Tue Apr 24, 2007 3:44 pm Post subject: Re: Heat Sink Compound Necessary? |
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On 23 Apr 2007 20:44:05 -0700, larry moe 'n curly
<larrymoencurly@my-deja.com> wrote:
| Quote: | kony wrote:
On 23 Apr 2007 09:38:58 -0700, larry moe 'n curly
larrymoencurly@my-deja.com> wrote:
It's doubtful it would fry w/o thermal compound, but without
any heatsink it can as the die temp rate of increase on some
areas can be higher than on others, it's conducted from the
area generating heat to the rest of the die, so by the time
the thermal shutdown circuit were to respond some areas
could already be hot enough to be damaged.
Do you remember this test done by Tom's Hardware back in 2001, where
they yanked the heatsinks off running Athlons and Pentiums?
www.tomshardware.com/2001/09/17/hot_spot/
Both the Pentium III and 4 survived intact, but both Athlons fried.
AMD modified a mobo to prevent this, and Asus/Asrock later claimed
that their Socket A mobos would protect the CPU against any such
failure (but I haven't verified that witn my Asrock).
The only reasons I bought a Pentium 4 instead instead of a faster AMD
CPU was because the latter could burn up and its heatsink mounting
wasn't that solid.
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There were also people who started up P4 systems without a
heatsink installed, to find the head spreader pops off and
the chip still dies. Key in the P4 protection is the rate
of temp increase, it will do it's job as intended in a
typical situation where there was dust buildup, a fan
failure, etc, but it's not a reliable way to save a CPU in
the same test Tom's ran. |
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Noozer
Guest
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| Posted: Tue Apr 24, 2007 3:44 pm Post subject: Re: Heat Sink Compound Necessary? |
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| Quote: | DaveW wrote:
You ABSOLUTELY have to use thermal paste or compound, or your CPU will
overheat and fry.
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At this point everyone should have realized that compound was NOT necessary.
If Dave says it, you know the opposite is true.
Now, it would be stupid to run your CPU without paste, but as long as the
heatsink wasn't improperly mounted you should be OK. |
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