Replace socket 478 CPU heatsink retention bracket
M Jones
up problems. I checked inside and could see the heatsink holder loose on
the heatsink and not holding the heatsink tight to the cpu. On further
inspection I have seen that one of the posts on the cpu retention bracket
that sits around the cpu has snapped off. I have attempted to fasten firmly
the heatsink to the cpu by using some new thermal compound and a couple of
cable ties. This has worked in the short term but on physically moving my
PC i am getting freeze ups. Looking inside again i can see the heatsink has
moved and parted slightly (only millimetres) so it would appear that my
cable tie method of repair is not the way in the longer term. At present i
am using the PC by resting it on it's side with the case off, thus ensuring
the heatsink adequately adheres to the cpu and has proper air flow etc. So
far i have not had any other freezeups.
I have gone onto ebay and purchased a socket 478 cpu heatsink cooler
retention bracket which i am still awaiting arrival.
http://tinyurl.com/yeqll78
Once replaced i think everything should be nice and tight again like it was
before. However i am aware of course that this will mean removing the mobo
from the case, going underneath and getting the old bracket off. I have had
a peek as best i can with the mobo still in the case to see how the existing
bracket is adhered in order to assess how difficult it will be to remove.
It looks like it is fixed with some lugs or screws. Has anybody had
experience replacing a bracket like this? Will it be a matter of removing
the old bracket with a little bit of unscrewing or will i have to get my
pliers and hacksaw out?
Thanks.
Jaimie Vandenbergh
<matthewjones...@hotmailREMOVE.com> wrote:
>Once replaced i think everything should be nice and tight again like it was
>before. However i am aware of course that this will mean removing the mobo
>from the case, going underneath and getting the old bracket off. I have had
>a peek as best i can with the mobo still in the case to see how the existing
>bracket is adhered in order to assess how difficult it will be to remove.
>It looks like it is fixed with some lugs or screws. Has anybody had
>experience replacing a bracket like this? Will it be a matter of removing
>the old bracket with a little bit of unscrewing or will i have to get my
>pliers and hacksaw out?
If the current one uses screws, you'll be fine.
But... I'm reasonably sure I've seen ones held on with one-shot
plastic locking "rivet" things, which need cutting out with a stanley
knife or maybe snips very, very carefully. If so, cut them off at the
fan side, as far away from the mobo as possible.
I'm not 100% because I've never had to take any of them off, I've just
peered at them and thought "bloody stupid idea...". I might have
missed an unlocking mechanism.
Cheers - Jaimie
--
"If you think C++ is not overly complicated, just what is a protected
abstract virtual base pure virtual private destructor, and when was the
last time you needed one?" - Tom Cargil, C++ Journal
Nick
"M Jones" <matthewjones...@hotmailREMOVE.com> wrote in message
news:M5mdncJapo36Jb_W...@bt.com...
There is a thread on this ng relating my woes, probably 12-15 months ago.
In my case the mobo had become distorted by the pressure exerted upon it
from the fan/heatsink fixings.
This caused (I imagine) one of those fixings to fail.
My cure was to make a paxolin brace to fit beneath the heatsink/fan.
This was carefully routed (ie. with a router) such that any solder tails
were not touched.
Fixings were by 4 suitable bolts/nuts with insulating washers above and
below, and insulating collars between the washers just to be on the safe
side.
This worked well for about 6 months and then the mobo threw the towel in,
stone dead.
Perhaps the mobo had done its three score years and ten, maybe my fix killed
it. I don't know.
I replaced the mobo, and here we are today.
hth
Nick.
><(((°>
Those nylon rivet looking things can be pushed out fairly easily from
underneath the board.
Other types of cooler retention brackets screw to the board from the top.
Never met a type yet that isn't easily removed once the mobo is out of the
case.
Jim E
"M Jones" <matthewjones...@hotmailREMOVE.com> wrote in message
news:M5mdncJapo36Jb_W...@bt.com...
Its very simple and no you dont have to remove the board.
Get a knife...even a normal kitchen knife that you eat your dinner
with.....try to get it under each of the 4 pins and flick it out....it will
go flying so watch where it lands
just prise them out
fit the new retainer and plug in the 4 pins
sorted.
when you`ve done it once it will never be a problem again
jsut work the knife under each pin and then sort of flick it out with force
in a way that you know it will go flying out.....you`ll see what i mean.
Clint Sharp
Vandenbergh <jai...@sometimes.sessile.org> writes
>I'm not 100% because I've never had to take any of them off, I've just
>peered at them and thought "bloody stupid idea...". I might have
>missed an unlocking mechanism.
thin screwdriver and the rivet releases. Either that or you can pull out
the pin from the top but they have a nasty habit of shearing off when
they'e been in use for a while.
>
> Cheers - Jaimie
--
Clint Sharp
Jaimie Vandenbergh
Thank you all for telling me - I'm pleased about that.
Cheers - Jaimie
--
"Jesus died for our sins. Let us not cheapen his
sacrifice by failing to commit any of them."
M Jones
" ><(((�>" <nos...@butfish.com> wrote in message
news:op.u4suofk2cnngb9@xp64...
Indeed. It was very straightforward to push the nylon pins from underneath
the board and pull the old bracket away. Actually i was very suprised at
how easy it was to remove the bracket given how firmly attached it was with
the pins in place. Must be some sort of pushing mechanism in action that
pushes the little legs outward inside the holes in the board when the pins
are in place.
I managed to get the new bracket in place but one of the legs is not as firm
as the others. No matter though because the heatsink and fan are now
altogether and i have the machine back in it's upright position again. I
wonder why it is with this type of cpu that the heatsink must be absolutley
square and tight in place not to have any problems. I have replaced cpu's
in a few boards and never came accross an issue like this where cooling was
so essential.