CPU heatsink & fan doesn't fit - socket too high

  • Thread starter Thread starter avtanski
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avtanski

Hello,

I'm trying to install the CPU fan on an Intel P4 (LGA775).
Well, everything looked fine until I tried to lock the
fan/heatsink over the processor. It looks like the CPU
socket is too high - with about 2mm, - and the heatsink
cannot lock on place.

The processor is sitting perfectly well in its place, everything
seems correct. The heatsink/fan is of the "push-pin" design,
something like this:

http://tinyurl.com/7perl

What would you recommend me to do? Do you know if there are
different standards for the socket height? Is there any
heatsink that I can be sure can fit (I don't want to get
another fan, just to see it doesn't fit too.)

What do you say?

Regards,

- Alex
 
Hello,

I'm trying to install the CPU fan on an Intel P4 (LGA775).
Well, everything looked fine until I tried to lock the
fan/heatsink over the processor. It looks like the CPU
socket is too high - with about 2mm, - and the heatsink
cannot lock on place.

The processor is sitting perfectly well in its place, everything
seems correct. The heatsink/fan is of the "push-pin" design,
something like this:

http://tinyurl.com/7perl

What would you recommend me to do? Do you know if there are
different standards for the socket height? Is there any
heatsink that I can be sure can fit (I don't want to get
another fan, just to see it doesn't fit too.)
Click to expand...

I don't want you to break your bits into pieces, BUT, are
you sure you were pushing hard enough on the pins? The
retention force is rather high. Every once in a great while
a heatsink comes out that has a poor design and isn't really
fit for (easy or reaonable at least) use. You might want to
determine the actual name of yours (which I presume you
don't know yet since you didn't provide that info) and
Google for user reports of problems with it, or at least
reviews to see if anyone managed to mount one and/or made
any comments about it.
 
Hi,

Thanks for the reply. The processor and heatsink come together in a
box - the processor is Pentium 4 530J, LGA775 Pkg. There is nothing
that looks like identification of the fan/heatsink, but I'm sure they
were designed to fit together. The fan/heatsink is almost identical to
the one whose URL I gave.

The MB I got separately. It is 945P-A by ECS. I assumed that if it
supports P4 LGA775 (it does), any P7 LGA775 should fit perfectly.
Well, it doesn't :-( The processor is just fine, but, as I told you,
the heatsink cannot fit.

I couldn't find anything about this particular combination on Google.
The only thing I can think of is that the socket is too high from what
is required by the fan. Tomorrow I plan to get another fan - some fans
seem to have better mounting frame that seem to me have wider
tolerances toward the socket height. At least on the pictures some fans
seem to have springs pressing them toward the MB - this one have just
one "click" position that does not allow even the tiniest tolerance...

We'll see... Anyway, if anybody have a better idea, let me know.

Thanks,

- Alex

I
 
I have never seen one of these, so I am just asking, does either the
processor fan or motherboard say BTX on it? I don't know the physical
difference between the two so it may not be a factor.

Clark
 
This is not the problem, unfortunately. :-( The heatsink has four
"legs" that ars supposed to be clamped to the MB. When clamped, the
design of the clamping "pin" requires the legs to be at about 1.5-2mm
above the MB. No matter what I do, there is simply no way to get them
lower than 4-5 mm.

Initially I was thinking that the heat transfer material pad may be
causing the problem and that maybe I should just press harder, but this
is not it.

- Alex
 
No BTX anywhere in the processor or motherboard docs or on the
packaging. What "BTX" is supposed to be?

Alex
 
Update: Just came from the shop with another cooler (Hyper 48,
KHC-L91). This one fit like a glove! I don't understand it - the fan
that came with the CPU didn't fit at all (and the more I look at it -
the more clear it becomes to me that it could not fit without straining
the board to breaking)...

Anyway, this one fits just right. :-)

- Alex
 
And a final update - in case anybody have similar problems. The Hyper
48 fan was terribly noisy. Anyway, I ended returning this one and
getting a small, nondescript fan for 1/3 of the Hyper price that is
both quieter and better designed.
 
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