Replacing heatsink - help!
 

Could someone please take a look at
http://www.sunrise1.plus.com/heatsink.htm and give me a hand please - I'm
out of my depth!
I thought I'd try replacing the heatsink and fan on my daughters pc - seemed
an easy job.
It's a 4 year old pc that has a AMD Athlon 1200 processor. I got what I
thought was the right heatsink but it's so much bigger than the other one,
it can't be right.
So can anyone tell me just what heatsink do I need for it?
The only wording I can see on it is socket 462.
Attached are photos with and without the heatsink.
Also over the centre of the processor is a small pad - I'm not sure if
that's off the heatsink and should be removed or if it's part of the
processor!
HELP!

Re: Replacing heatsink - help!
 

On Tue, 23 Aug 2005 11:53:57 +0100, Devi wrote:

> Could someone please take a look at
> http://www.sunrise1.plus.com/heatsink.htm and give me a hand please -
> I'm out of my depth!
> I thought I'd try replacing the heatsink and fan on my daughters pc -
> seemed an easy job.
> It's a 4 year old pc that has a AMD Athlon 1200 processor. I got what I
> thought was the right heatsink but it's so much bigger than the other
> one, it can't be right.
> So can anyone tell me just what heatsink do I need for it? The only
> wording I can see on it is socket 462. Attached are photos with and
> without the heatsink. Also over the centre of the processor is a small
> pad - I'm not sure if that's off the heatsink and should be removed or
> if it's part of the processor!
> HELP!

Looks ok from what I can see in the pics. The pad on the bottom of the
heat sink is thermal tape. If it has a clear plastic covering on it
remove the plastic. If it's just a thin sticky paste leave it alone.
Clean off the old thermal paste on top of your processor however. Looks
like you've got a larger heatsink using a slightly larger fan which
probably spins somewhat slower which makes it quieter, but should give the
same cooling capability. Why are you changing the heat sink out by the
way?
--
Registered Linux User #267152

Re: Replacing heatsink - help!
 

"JTJersey" <JT3@anotherlinuxmachine.com> wrote in message
news:BKLOe.169699$a%6.87994@fe49.usenetserver.com. ..
> On Tue, 23 Aug 2005 11:53:57 +0100, Devi wrote:
>
>> Could someone please take a look at
>> http://www.sunrise1.plus.com/heatsink.htm and give me a hand please -
>> I'm out of my depth!
>> I thought I'd try replacing the heatsink and fan on my daughters pc -
>> seemed an easy job.
>> It's a 4 year old pc that has a AMD Athlon 1200 processor. I got what I
>> thought was the right heatsink but it's so much bigger than the other
>> one, it can't be right.
>> So can anyone tell me just what heatsink do I need for it? The only
>> wording I can see on it is socket 462. Attached are photos with and
>> without the heatsink. Also over the centre of the processor is a small
>> pad - I'm not sure if that's off the heatsink and should be removed or
>> if it's part of the processor!
>> HELP!
>
> Looks ok from what I can see in the pics. The pad on the bottom of the
> heat sink is thermal tape. If it has a clear plastic covering on it
> remove the plastic. If it's just a thin sticky paste leave it alone.
> Clean off the old thermal paste on top of your processor however. Looks
> like you've got a larger heatsink using a slightly larger fan which
> probably spins somewhat slower which makes it quieter, but should give the
> same cooling capability. Why are you changing the heat sink out by the
> way?
> --
> Registered Linux User #267152
>
The pc seems to power up when she switches on but it turns itself off
before it gets to the boot up stage. All the lights on the case front come
on but there is no bios beep and then it switches off. I thought most likely
cause was fan not working.
So do you think I could use the new heatsink after all? The paste on the
processor seems pretty stuck - how do I get it off?
Thanks for the help by the way

Re: Replacing heatsink - help!
 

Devi wrote:
> "JTJersey" <JT3@anotherlinuxmachine.com> wrote in message
> news:BKLOe.169699$a%6.87994@fe49.usenetserver.com. ..
>
>>On Tue, 23 Aug 2005 11:53:57 +0100, Devi wrote:
>>
>>
>>>Could someone please take a look at
>>>http://www.sunrise1.plus.com/heatsink.htm and give me a hand please -
>>>I'm out of my depth!
>>>I thought I'd try replacing the heatsink and fan on my daughters pc -
>>>seemed an easy job.
>>>It's a 4 year old pc that has a AMD Athlon 1200 processor. I got what I
>>>thought was the right heatsink but it's so much bigger than the other
>>>one, it can't be right.
>>>So can anyone tell me just what heatsink do I need for it? The only
>>>wording I can see on it is socket 462. Attached are photos with and
>>>without the heatsink. Also over the centre of the processor is a small
>>>pad - I'm not sure if that's off the heatsink and should be removed or
>>>if it's part of the processor!
>>>HELP!
>>
>>Looks ok from what I can see in the pics. The pad on the bottom of the
>>heat sink is thermal tape. If it has a clear plastic covering on it
>>remove the plastic. If it's just a thin sticky paste leave it alone.
>>Clean off the old thermal paste on top of your processor however. Looks
>>like you've got a larger heatsink using a slightly larger fan which
>>probably spins somewhat slower which makes it quieter, but should give the
>>same cooling capability. Why are you changing the heat sink out by the
>>way?
>>--
>>Registered Linux User #267152
>>
>
> The pc seems to power up when she switches on but it turns itself off
> before it gets to the boot up stage. All the lights on the case front come
> on but there is no bios beep and then it switches off. I thought most likely
> cause was fan not working.
> So do you think I could use the new heatsink after all? The paste on the
> processor seems pretty stuck - how do I get it off?
> Thanks for the help by the way
>
>
I seriously doubt heating of the CPU is the problem.
What i would do, is disconnect all IDE devices and unplug all
daughter boards except the video board.
Then i would use a DOS boot floppy to see how or if it operates.
I *always* use a write-protected, "clean" floppy (created by DOS and
only has DOS commands on it).
If it works OK, then one of those IDE devices may have been connected
incorrectly or went bad.
So, one at a time, connect each one and *still* boot with the floppy.
Check the BIOS to see if it properly recognizes the IDE devices each
time (ia a hard drive in CHS mode - if so, you have a problem with that
drive).

Re: Replacing heatsink - help!
 

"Robert Baer" <robertbaer@earthlink.net> wrote in message
news:QFWOe.1198$5B4.581@newsread2.news.pas.earthli nk.net...
> Devi wrote:
>> "JTJersey" <JT3@anotherlinuxmachine.com> wrote in message
>> news:BKLOe.169699$a%6.87994@fe49.usenetserver.com. ..
>>
>>>On Tue, 23 Aug 2005 11:53:57 +0100, Devi wrote:
>>>
>>>
>>>>Could someone please take a look at
>>>>http://www.sunrise1.plus.com/heatsink.htm and give me a hand please -
>>>>I'm out of my depth!
>>>>I thought I'd try replacing the heatsink and fan on my daughters pc -
>>>>seemed an easy job.
>>>>It's a 4 year old pc that has a AMD Athlon 1200 processor. I got what I
>>>>thought was the right heatsink but it's so much bigger than the other
>>>>one, it can't be right.
>>>>So can anyone tell me just what heatsink do I need for it? The only
>>>>wording I can see on it is socket 462. Attached are photos with and
>>>>without the heatsink. Also over the centre of the processor is a small
>>>>pad - I'm not sure if that's off the heatsink and should be removed or
>>>>if it's part of the processor!
>>>>HELP!
>>>
>>>Looks ok from what I can see in the pics. The pad on the bottom of the
>>>heat sink is thermal tape. If it has a clear plastic covering on it
>>>remove the plastic. If it's just a thin sticky paste leave it alone.
>>>Clean off the old thermal paste on top of your processor however. Looks
>>>like you've got a larger heatsink using a slightly larger fan which
>>>probably spins somewhat slower which makes it quieter, but should give
>>>the
>>>same cooling capability. Why are you changing the heat sink out by the
>>>way?
>>>--
>>>Registered Linux User #267152
>>>
>>
>> The pc seems to power up when she switches on but it turns itself off
>> before it gets to the boot up stage. All the lights on the case front
>> come on but there is no bios beep and then it switches off. I thought
>> most likely cause was fan not working.
>> So do you think I could use the new heatsink after all? The paste on the
>> processor seems pretty stuck - how do I get it off?
>> Thanks for the help by the way
>>
>>
> I seriously doubt heating of the CPU is the problem.
> What i would do, is disconnect all IDE devices and unplug all daughter
> boards except the video board.
> Then i would use a DOS boot floppy to see how or if it operates.
> I *always* use a write-protected, "clean" floppy (created by DOS and
> only has DOS commands on it).
> If it works OK, then one of those IDE devices may have been connected
> incorrectly or went bad.
> So, one at a time, connect each one and *still* boot with the floppy.
> Check the BIOS to see if it properly recognizes the IDE devices each
> time (ia a hard drive in CHS mode - if so, you have a problem with that
> drive).

Oh dear, that sound even more complicated! I have her hard drive in a
different computer at the moment and that boots fine so presumably it's not
that

Re: Replacing heatsink - help!
 

>>
> The pc seems to power up when she switches on but it turns itself off
> before it gets to the boot up stage. All the lights on the case front
> come on but there is no bios beep and then it switches off. I thought most
> likely cause was fan not working.
> So do you think I could use the new heatsink after all? The paste on the
> processor seems pretty stuck - how do I get it off?
> Thanks for the help by the way
>
>
I have exactly the same problem. However, my solution (at present), if it
doesn't start, is to switch off at the mains, wiggle the mains cable where
it enters the psu, switch on the mains and restart. Almost every time it
goes ok. I do then have to OK the bios but thats no hassle. Originally, i
found that wiggling USB cables at the back did the same thing and my local
PC shop said it *could* be a dry joint between the card and the motherboard.
Since experimenting and *only* wriggling the mains cable the shop has
suggested it might be the psu on its way out.

HTH

Re: Replacing heatsink - help!
 

> I seriously doubt heating of the CPU is the problem.
> What i would do, is disconnect all IDE devices and unplug all daughter
> boards except the video board.
> Then i would use a DOS boot floppy to see how or if it operates.
> I *always* use a write-protected, "clean" floppy (created by DOS and
> only has DOS commands on it).
> If it works OK, then one of those IDE devices may have been connected
> incorrectly or went bad.
> So, one at a time, connect each one and *still* boot with the floppy.
> Check the BIOS to see if it properly recognizes the IDE devices each
> time (ia a hard drive in CHS mode - if so, you have a problem with that
> drive).

If the fan isn't spinning (as previously stated in an older topic by this
user), it is usually the Motherboard cutting power off to stop the CPU from
frying.
Believe me, I have tried and tested this myself!

Re: Replacing heatsink - help!
 

"Devi" <spam@notnet> wrote in message
news:430b0066$0$17501$ed2e19e4@ptn-nntp-reader04.plus.net...
> Could someone please take a look at
> http://www.sunrise1.plus.com/heatsink.htm and give me a hand please - I'm
> out of my depth!
> I thought I'd try replacing the heatsink and fan on my daughters pc -
> seemed an easy job.
> It's a 4 year old pc that has a AMD Athlon 1200 processor. I got what I
> thought was the right heatsink but it's so much bigger than the other
> one, it can't be right.
> So can anyone tell me just what heatsink do I need for it?
> The only wording I can see on it is socket 462.
> Attached are photos with and without the heatsink.
> Also over the centre of the processor is a small pad - I'm not sure if
> that's off the heatsink and should be removed or if it's part of the
> processor!
> HELP!
It was the power supply!

Re: Replacing heatsink - help!
 

> It was the power supply!

I don't mean any offence but it was only a couple of weeks ago you said your
system was powering on, switching off after a few seconds and that the CPU
fan wasn't rotating at power on.
The above description suggests it could be a CPU Fan fault and the Computer
is automatically preventing itself from burning the CPU.
If you actually want help from the newsgroup, it will only work if you get
your facts correct as if the parameters of the problem are completely
changed several times, every single piece of advice made is going to be in
conflict (e.g.: It's like saying that my car's headlights switch on but the
engine won't start and then several days later saying I didn't have a
battery fitted! It completely renders everything previously said useless and
senseless).

As said above, no offence, just advice :-)

Re: Replacing heatsink - help!
 

"Simon Lee" <simon@SPAMTRAPlee1287.freeserve.co.uk> wrote in message
news:denkc4$s9k$1@newsg4.svr.pol.co.uk...
>> It was the power supply!
>
> I don't mean any offence but it was only a couple of weeks ago you said
> your system was powering on, switching off after a few seconds and that
> the CPU fan wasn't rotating at power on.
> The above description suggests it could be a CPU Fan fault and the
> Computer is automatically preventing itself from burning the CPU.
> If you actually want help from the newsgroup, it will only work if you get
> your facts correct as if the parameters of the problem are completely
> changed several times, every single piece of advice made is going to be in
> conflict (e.g.: It's like saying that my car's headlights switch on but
> the engine won't start and then several days later saying I didn't have a
> battery fitted! It completely renders everything previously said useless
> and senseless).
>
> As said above, no offence, just advice :-)
>
When the pc was switched on, the power lights came on but it never got as
far the boot before it switched itself off again - which is what I think I
said in the OP. I changed the heatsink and fan to no effect. I changed the
power supply and it boots normally. Those are the facts.