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External
Since: Nov 27, 2006
Posts: 8
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(Msg. 1) Posted: Fri Feb 01, 2008 9:38 am
Post subject: Replacing the GPU Heatsink on Radeon X700
Archived from groups: alt>comp>periphs>videocards>ati (more info?)
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I have a Radeon X700 PCIe card with a old, noisy fan that desperately
needs to be replaced. I have always hated the high-pitched screen that
this little bugger emits, so I was thinking about replacing the stock
heatsink/fan with a lone heatsink on the GPU and a larger diameter PCI
fan in the adjacent PCI slot. I imagine that this setup will
sufficiently cool the GPU and, at the same time, reduce noise by
allowing the same amount of air to be moved by the larger fan that can
do the same job at lower RPMs.
When I removed the stock heatsink/fan, I noticed that the thermal
interface consisted of what looked like 2 thermal pads that were
joined with some kind of "fluffy" gray substance. I also noticed that
there are about a dozen little transistor looking things sticking out
of the top of the GPU in various places.
So, what would you suggest that I use for a thermal interface?
It seemed that the thermal pads were, perhaps intentionally, keeping
the heatsink/fan serveral millimeters above the "little transistor
looking things", so that they did not make contact with each other.
Is it important that my new heatsink should not come in contact with
these "transistors"? If so, then should I simply leave the pre-
existing thermal pad on the GPU side, remove all the old, gray fluffy
material on it, put a thermal pad on the new heatsink, and use a drop
of some kind of thermal grease to mate the two surfaces with?
If it weren't for those little "transistors" sticking out, preventing
a flat mating of the two surfaces, then I would just use some of that
Arctic Silver that everyone keeps orgasmicly referring to. But I am
uncertain what the best course of action would be, considering that
these "transistors" are in the way. |
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External
Since: Nov 27, 2006
Posts: 8
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(Msg. 2) Posted: Fri Feb 01, 2008 8:34 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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External
Since: Mar 14, 2007
Posts: 491
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(Msg. 3) Posted: Fri Feb 01, 2008 9:07 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Usually the small resistors on the GPU's green package are below the level
of the die's top surface, so a flat heat sink will not touch the resistors.
It's actually pretty uncommon to see thick thermal pads on the GPU, unless
it's there to fill the gap created by a shim around the GPU package (as is
the case with the original 9700 Pro).
Why don't you take a close-up photo of the GPU, post it on www.imageshack.us
, and link it here?
--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed."
<psistormyamato.RemoveThis@cs.com> wrote in message
news:8e785f64-11d5-4f54-936a-bc44747ba930@c23g2000hsa.googlegroups.com...
>I have a Radeon X700 PCIe card with a old, noisy fan that desperately
> needs to be replaced. I have always hated the high-pitched screen that
> this little bugger emits, so I was thinking about replacing the stock
> heatsink/fan with a lone heatsink on the GPU and a larger diameter PCI
> fan in the adjacent PCI slot. I imagine that this setup will
> sufficiently cool the GPU and, at the same time, reduce noise by
> allowing the same amount of air to be moved by the larger fan that can
> do the same job at lower RPMs.
>
> When I removed the stock heatsink/fan, I noticed that the thermal
> interface consisted of what looked like 2 thermal pads that were
> joined with some kind of "fluffy" gray substance. I also noticed that
> there are about a dozen little transistor looking things sticking out
> of the top of the GPU in various places.
>
> So, what would you suggest that I use for a thermal interface?
>
> It seemed that the thermal pads were, perhaps intentionally, keeping
> the heatsink/fan serveral millimeters above the "little transistor
> looking things", so that they did not make contact with each other.
>
> Is it important that my new heatsink should not come in contact with
> these "transistors"? If so, then should I simply leave the pre-
> existing thermal pad on the GPU side, remove all the old, gray fluffy
> material on it, put a thermal pad on the new heatsink, and use a drop
> of some kind of thermal grease to mate the two surfaces with?
>
> If it weren't for those little "transistors" sticking out, preventing
> a flat mating of the two surfaces, then I would just use some of that
> Arctic Silver that everyone keeps orgasmicly referring to. But I am
> uncertain what the best course of action would be, considering that
> these "transistors" are in the way. >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Mar 14, 2007
Posts: 491
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(Msg. 4) Posted: Sat Feb 02, 2008 1:20 am
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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External
Since: Nov 27, 2006
Posts: 8
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(Msg. 5) Posted: Sat Feb 02, 2008 10:34 am
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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That Zalman fan looks pretty good. But the package only includes
thermal grease. Wouldn't I also need some thermal epoxy to attach the
RAM sinks securely?
I'm still concerned about any physical contact with those
"transistors" that are sticking out. Could that lead to a short? Or
would direct physical contact actually help to transfer heat more
effectively?
Also, I was wondering about the 3-pin connector. I can still connect
the Zalman's 3-pin to the card's 2-pin output, right? Isn't that 3rd
pin just for a speed sensor?
And, since the card is expecting to control a small fan, how effective
is the conversion of RPMs for the large fan? Is that primarily what
that controller, that comes in the Zalman package, is for? >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Nov 27, 2006
Posts: 8
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(Msg. 6) Posted: Sat Feb 02, 2008 12:19 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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External
Since: Nov 27, 2006
Posts: 8
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(Msg. 7) Posted: Sat Feb 02, 2008 3:41 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Feb 2, 4:38 pm, "First of One" <r... RemoveThis @127.0.0.1> wrote:
> <psistormyam... RemoveThis @cs.com> wrote in message
>
> news:64cdd533-f2a2-4521-bcee-66186f558d6a@d4g2000prg.googlegroups.com...
> Take a look at the 9800Pro I used to own:http://img136.imageshack.us/my.php?image=nosinkaq2.jpg
>
> The resistors on the chip package are quite common. Their height is usually
> ~1 mm below the top surface of the die, so a flat heat sink won't contact
> them. You can confirm this on your card by first cleaning off the residue
> from the die (use isopropyl alcohol), then putting a ruler against the die.
Oh OK, I hadn't scraped that gunk off yet, so I just assumed that the
surface underneath was just as low as the rest of the flat area around
it. Thanks for the pic.
> The Zalman does not plug into the card. It connects to a 4-pin molex from
> your power supply. The little black box is a manual fan speed adjuster that
> you can optionally use. Many people skip the adjuster and just run the fan
> at 100% speed all the time. The fan is quiet enough that you likely won't
> hear it over the other fans in the system.
Oh OK, I saw the image at that website at just assumed that it was a
direct connection to the card.
http://www.newegg.com/Product/ShowImage.aspx?CurImage=35-118-001-02.jp...mage=35
But that 3-pin apparently just connects to that cable that has the
visible molex on one end.
http://www.newegg.com/Product/ShowImage.aspx?CurImage=35-118-001-02.jp...mage=35
I guess they just used a regular case fan in their design. That would
explain the 3-pin connector.
Thanks for all the help. >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Mar 14, 2007
Posts: 491
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(Msg. 8) Posted: Sat Feb 02, 2008 4:38 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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<psistormyamato.DeleteThis@cs.com> wrote in message
news:64cdd533-f2a2-4521-bcee-66186f558d6a@d4g2000prg.googlegroups.com...
> That Zalman fan looks pretty good. But the package only includes
> thermal grease. Wouldn't I also need some thermal epoxy to attach the
> RAM sinks securely?
Each RAM sink has a pre-applied thermal pad on the bottom. Just remove the
adhesive backing and stick the sink on the RAM chip.
> I'm still concerned about any physical contact with those
> "transistors" that are sticking out. Could that lead to a short? Or
> would direct physical contact actually help to transfer heat more
> effectively?
Take a look at the 9800Pro I used to own:
http://img136.imageshack.us/my.php?image=nosinkaq2.jpg
The resistors on the chip package are quite common. Their height is usually
~1 mm below the top surface of the die, so a flat heat sink won't contact
them. You can confirm this on your card by first cleaning off the residue
from the die (use isopropyl alcohol), then putting a ruler against the die.
If the ruler check proves inconclusive, just cover the resistors with scotch
tape.
> Also, I was wondering about the 3-pin connector. I can still connect
> the Zalman's 3-pin to the card's 2-pin output, right? Isn't that 3rd
> pin just for a speed sensor?
>
> And, since the card is expecting to control a small fan, how effective
> is the conversion of RPMs for the large fan? Is that primarily what
> that controller, that comes in the Zalman package, is for?
The Zalman does not plug into the card. It connects to a 4-pin molex from
your power supply. The little black box is a manual fan speed adjuster that
you can optionally use. Many people skip the adjuster and just run the fan
at 100% speed all the time. The fan is quiet enough that you likely won't
hear it over the other fans in the system.
--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed." >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Nov 18, 2007
Posts: 2
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(Msg. 9) Posted: Sat Feb 02, 2008 7:07 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Try using a good quality thermal paste on the GPU, my personal preference is
Artic Silver 5
<psistormyamato.TakeThisOut@cs.com> wrote in message
news:f82dba9e-f2ad-4a48-b9ed-6077d330382a@s8g2000prg.googlegroups.com...
> On Feb 2, 4:38 pm, "First of One" <r....TakeThisOut@127.0.0.1> wrote:
>> <psistormyam....TakeThisOut@cs.com> wrote in message
>>
>> news:64cdd533-f2a2-4521-bcee-66186f558d6a@d4g2000prg.googlegroups.com...
>
>> Take a look at the 9800Pro I used to
>> own:http://img136.imageshack.us/my.php?image=nosinkaq2.jpg
>>
>> The resistors on the chip package are quite common. Their height is
>> usually
>> ~1 mm below the top surface of the die, so a flat heat sink won't contact
>> them. You can confirm this on your card by first cleaning off the residue
>> from the die (use isopropyl alcohol), then putting a ruler against the
>> die.
>
> Oh OK, I hadn't scraped that gunk off yet, so I just assumed that the
> surface underneath was just as low as the rest of the flat area around
> it. Thanks for the pic.
>
>> The Zalman does not plug into the card. It connects to a 4-pin molex from
>> your power supply. The little black box is a manual fan speed adjuster
>> that
>> you can optionally use. Many people skip the adjuster and just run the
>> fan
>> at 100% speed all the time. The fan is quiet enough that you likely won't
>> hear it over the other fans in the system.
>
> Oh OK, I saw the image at that website at just assumed that it was a
> direct connection to the card.
> http://www.newegg.com/Product/ShowImage.aspx?CurImage=35-118-001-02.jp...mage=35
>
> But that 3-pin apparently just connects to that cable that has the
> visible molex on one end.
> http://www.newegg.com/Product/ShowImage.aspx?CurImage=35-118-001-02.jp...mage=35
>
> I guess they just used a regular case fan in their design. That would
> explain the 3-pin connector.
>
> Thanks for all the help.
> >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Jan 27, 2008
Posts: 30
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(Msg. 10) Posted: Sun Feb 03, 2008 5:10 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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In article <64cdd533-f2a2-4521-bcee-66186f558d6a.TakeThisOut@d4g2000prg.googlegroups.com>, psistormyamato.TakeThisOut@cs.com wrote:
>That Zalman fan looks pretty good. But the package only includes
>thermal grease. Wouldn't I also need some thermal epoxy to attach the
>RAM sinks securely?
It uses a double sided thermal tape. But yes to permanantly mount the ram
sinks you could buy some arctic silver or ceramic adhesive epoxy
(Not paste, the epoxy type like here)
http://www.arcticsilver.com/arctic_alumina_thermal_adhesive.htm
>
>I'm still concerned about any physical contact with those
>"transistors" that are sticking out. Could that lead to a short? Or
>would direct physical contact actually help to transfer heat more
>effectively?
>
>Also, I was wondering about the 3-pin connector. I can still connect
>the Zalman's 3-pin to the card's 2-pin output, right? Isn't that 3rd
>pin just for a speed sensor?
>
>And, since the card is expecting to control a small fan, how effective
>is the conversion of RPMs for the large fan? Is that primarily what
>that controller, that comes in the Zalman package, is for? >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Jul 09, 2007
Posts: 11
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(Msg. 11) Posted: Mon Feb 04, 2008 10:28 am
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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psistormyamato RemoveThis @cs.com wrote:
> I have a Radeon X700 PCIe card with a old, noisy fan that desperately
> needs to be replaced. I have always hated the high-pitched screen that
> this little bugger emits, so I was thinking about replacing the stock
> heatsink/fan with a lone heatsink on the GPU and a larger diameter PCI
> fan in the adjacent PCI slot. I imagine that this setup will
> sufficiently cool the GPU and, at the same time, reduce noise by
> allowing the same amount of air to be moved by the larger fan that can
> do the same job at lower RPMs.
>
I replaced the stock fan on my X700 a week after I got it. I got a
Arctic Cooling AVC-AT1R2 for about $25. It is silent and works great.
-Mike >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Mar 14, 2007
Posts: 491
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(Msg. 12) Posted: Mon Feb 04, 2008 8:26 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Problem with this otherwise well-engineered cooler:
1) Discontinued
2) No heatsinks or heatspreader included for the RAM, though they could of
course be purchased separately.
--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed."
"Mike Ray" <mer1.RemoveThis@cornell.edu> wrote in message
news:fo7au1$1ae$1@ruby.cit.cornell.edu...
> psistormyamato.RemoveThis@cs.com wrote:
> I replaced the stock fan on my X700 a week after I got it. I got a Arctic
> Cooling AVC-AT1R2 for about $25. It is silent and works great.
> -Mike >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Nov 27, 2006
Posts: 8
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(Msg. 13) Posted: Tue Feb 05, 2008 7:53 am
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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> I replaced the stock fan on my X700 a week after I got it. I got a
> Arctic Cooling AVC-AT1R2 for about $25. It is silent and works great.
> -Mike
I would also be concerned about the disruption on airflow across the
mainboard. If air is being forced in at the PCI slots and then sucked
right back out just a few inches later at the system fan, then why
would any air be pulled in from anywhere else? >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Mar 14, 2007
Posts: 491
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(Msg. 14) Posted: Sat Feb 09, 2008 10:24 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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1) You got the fan direction confused. The AC Silencer series of coolers
*exhaust* air through the PCI slot grille.
2) You really should have a decent intake fan installed at the front of your
case to pull in air actively.
This is getting silly. It's not like the X700 puts out much heat. Even the
X800 Pro draws less than 50W. Any aftermarket cooler will work.
--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed."
<psistormyamato.TakeThisOut@cs.com> wrote in message
news:a83ea785-107d-4085-b39a-ecb43607c6b0@s13g2000prd.googlegroups.com...
>> I replaced the stock fan on my X700 a week after I got it. I got a
>> Arctic Cooling AVC-AT1R2 for about $25. It is silent and works great.
>> -Mike
>
> I would also be concerned about the disruption on airflow across the
> mainboard. If air is being forced in at the PCI slots and then sucked
> right back out just a few inches later at the system fan, then why
> would any air be pulled in from anywhere else? >> Stay informed about: Replacing the GPU Heatsink on Radeon X700 |
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External
Since: Feb 12, 2008
Posts: 9
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(Msg. 15) Posted: Wed Mar 12, 2008 4:45 pm
Post subject: Re: Replacing the GPU Heatsink on Radeon X700 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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