Modded my Parhelia part Deux The Heatsink

[Xplora]

Well so far we've seen two ways to nullify your warranty... where are the benchmarks?

[Wombat]

Can't get them yet.

[ALBPM]

To remove the new Heatsink all you need to do is slide a razor blade or thin knife blade between the Heatsink and the GPU's heat spreader in each corner. I've done this many times before without damaging anything. The Super Glue cracks and releases easily.

You can also use Frag tape or any other thermal tape if the Super Glue method scares you.

I'd stay away from the 2 part epoxies as they are much more permanent. The only way these are easy to remove is if you mix the 2 part epoxy with around 1/3 to 1/2 as much thermal grease.
For example: mix up some 2 part Arctic silver epoxy and then add a ~1/3 by volume amount of Arctic Silver paste. Mix it well and then use a very thin layer. I'd experiment at first to see how well the mixture sets up and how long it takes to set up before actually using it on anything.

Benchmarks: Can't post anything yet, "SOON" I hope and only with Public release Drivers.

Paul

[raku]

It seems to me that the fan is backwards on heatsink and is drawing off air from heatsink instead of blowing it on the HS

[ALBPM]

LOL....You're the first to notice!!!

That is the way I first set it up. It's usually is more efficient to "suck" air through a Heatsink than to "blow" on it.

But, after putting the card in my system I decided to change it back to "blow" on the heatsink because there is only about 5 mm clearance between the fan and the card in my 2nd PCI slot.

Any way I tried both ways and it works better blowing on the Heatsink due to the 2nd PCI card blocking the air flow.

Paul

[frankymail]

Actually, that ain’t completly true that "sucking" is better than "blowing" (eg: have you ever heard of a "suck"job ); it depends on the design of the heatsink. If you have a very low profile PINS heatsink, it’s true that aspiration is more efficient, but if you have a high-profile (long pins) pins heatsink or fins heatsink, expulsion (blowing) is more efficient; to allow aspiration to be nearly as efficient as expulsion is, you need some kind of shroud (like the ones that come with the alphas, which are always supposed to be mounted using the “sucking” way. However, the most efficient of all solution if , by far, focused or vanned air-flow. All this because aspiration sucks abient air in and pushes it on a more focused point (at the same distance from the fan, the positive pressure from the “blowing” side is always higher than the negative pressure of the “sucking” side. The lesson to be learn here? Use a centrifugal fan

[Wombat]

(eg: have you ever heard of a "suck"job )

Actually, I knew a girl that took "blow" job literally. My friend was on the receiving end, and said it hurt like hell.

[ALBPM]

BWHAHAHAHAHA!!!!!!

Wombat has a point franky.

I've had much better luck pulling the heat off the Heatsink(sucking) and out of the case.

Paul

[gdf]

ALBPM,

Ever considered this type of fan ?

http://www.titan-cd.com/images/003_b.jpg

High airflow, low noise, occupies only 1 PCI slot.
Sucks air over the GPU right out of the computer case.

Unfortunately, this titan example runs out of lubricant in a few months, but the idea is good.

gdf

[Greebe]

gdf, I have a few of those system blowers fans and they're not all that they are cracked up to be... do a decient job of moving air out of a case, but poor at cooling a Gcard.

[frankymail]

The way I use centrifugal fan is the way it should be used: the blowing end toward the hs... But the centrifugal fans like the one whown above have a really big problem: they don't spin fast enough, so collect a lot of dust very quickly (even if there is almost no fibers in the air), become unbalanced and their bearings wears out... they are fine for air exhaust, but to cool down something I suggest Nidec (Gamma) centrifugal fans if you want high pressure-good air flow-low noise.

BTW, I've never dated a girl stupid enough that she would take the expression -blow job- literally

[ALBPM]

I just added the Heatsinks to my Memory finally. I found some nice ALPHA type 30x30x9.5mm. A couple were in tight spots but the 30x30mm size Heatsinks fit.



Paul

[xortam]

So how much are you overclocking the P their Paul?

[ALBPM]

Just getting ready.

Paul

[KvHagedorn]

Heh.. your ramsinks look way cooler than Doc's, Paul.. did you just use the same method to stick those on?