Arctic Silver II or this?? Golden & Diamond members please check this out!!

[vikash]

This is the product that comes in the little syringe along with Box Packed 423 Pin Pentium 4 processors:


G-749 Thermal Grease


Viscosity : 3000 Poise max
Appearance : Gray
Penetration (unworked) : 265
Penetration (worked) : 274
Bleed : < 0.01%
Volatile Content : 0.05%
Specific Gravity : 2.73
Thermal Conductivity : 2.9 (W/m °K)


http://www.microsi.com/prod-thermalmgt.html


Out of curosity, just wanted to know if any one can suggest how this compares to Arctic Silver II.

I happen to have some 174 such syringes with me......are they of any commercial value?

Vikash

 

[veryape]

Even with Arctic Silver the difference in temperature is neglegable if at all when compared to even the lowest grade thermal grease. In my opinion the stuff from Radio Shack is just as good unless you feel like throwing money away for a 1 degee difference in temperature. The p4 doesn't run hot anyhow so it really makes no difference in your case.

 

[DARRIN]

I agree with veryape. I've used serveral kinds of compund and have not really noticed any difference between them.

 

[Blain]

AS II specs

 

[extro]

I went from the Radio Shack goop to the Arctic Silver on the overclocked P3/600.

Noticed no temperature change whatsoever. But at least I got the dab of high-priced goop for free from my brother.

 

[Blain]

Hard OCP heatsink compound roundup

 

[Shalmanese]

Just a note: why only goldend and dimaond members

/me struts his 1001th post around

 

[gogeeta13]

<<

I happen to have some 174 such syringes with me......are they of any commercial value?

Vikash >>



Nope, send em to me

 

[thermite88]

Founded as a General Electric subsidiary in 1984, Shin-Etsu MicroSi became part of the Shin-Etsu group in 1989. They are one of the world's leader in thermal management products, ranging from multi-billion space program to home appliance.

G-749 Thermal Grease is a very good thermal interface material.

Most of the premium thermal paste marketed to computer hobbyist are marketed by non-technical person who emphasized the high conductivity of high silver content. In real world application where the paste layer is typically 1 micron thick (0.001 inch), it makes little difference in cooling as shown by many reviews.

Over-all thermal conductance = k x A/x

where k=thermal paste conductivity, A=contact area and x=thickness of layer of paste.

All thermal pastes measure similarly when they are fresh.

However, high quality thermal paste is essential for long term use due to two effects.

(1) The pumping effect. Today CPU easily consume upwards of 70 watts under load. When it cycles between idle and full load, the CPU and hestsink, which are made of different material, do not expand and shrink uniformly. If the thermal paste is too low in viscousity when hot, it may get squeezed out and left gap between the CPU and hestsink. That is why AMD approves only phase change thermal material (thick like rubber) for their high powered CPU. See AMD Heatsink Guide.

(2) Cheap silicone based thermal paste dries out fast under high heat condition. If you use thermal paste of unknown origin, such as those from Radio Shack, check for freshness of the interface regularly. It should not dry out or become waterly.

The P4 has thermal design heat in the 70 watts range. It runs quite hot. Mine runs 35C idle and 51C full load. Intel has come up with a mounting mechanism for the socket 487 CPU that is as fool proof as it can be. If you follow the instruction, the heatsink will always be level and square. The older socket 423 heatsink is a little more tricky to install, but is still an improvement over the socket 370 type.

<< I happen to have some 174 such syringes with me......are they of any commercial value? >>

It is good engineering product. It may not be enough to hire a marketing firm.

 

[LuNoTiCK]

Arctic Silver 2 is probably better but it won't make a difference. Anyway why only golden and diamond members? What about platinum members? Elite members and the lifers?

 

[MrThompson]

Arctic Silver II:

Thermal conductivity: 8.4 W/m°K to 8.8 W/m°K

G-749 Thermal Grease:

Thermal Conductivity 2.9 (W/m °K)

The math reveals that Arctic Silver II has about three times the thermal conductivity of G-749.

With the large surface area of a P4, the thermal grease is not as critical as on an AMD or PIII. Given the same heat output, any temperature difference you see on a P4 should be multiplied by a surface area factor of 6 to be equivalent to what would be seen on a CPU with a small die like an AMD or PIII.

 

[Mikewarrior2]

Remember that testing method used when trying arctic silver or any other grease is vastly important and crucial.

Veryape,

What kind of system (mb/cpu/bios version) did you use when you used AS?


Darrin,

Same question.


Extra,

Same question, too.



Mike

 

[JackBurton]

Let me tell you the BIG difference between ASII (or the original AS), ASII doesn't break down as quickly as regualr theraml paste (Radio Shack crap). If you leave that cheap thermal paste on for awhile it begins to dry up. I've applied AS on quiet a few CPUs and it has NEVER dried up. Also, AS makes the difference with load temp, not as much with idle temp.

And another note, when taking a P4 into consideration you have to consider how it is put together. You first have the die, then Intel's thermal paste, then the heat spreader. Now the heat spreader is where you apply the AS so you have a HS (Heat Spreader) and TP (Thermal Paste) right under your AS before you even make contact with the die. The best way to go about it is to pop the cap off the P4, remove the Intel paste, apply AS, put the cap back on, then apply AS again on the HS then attach the HSF...but I haven't got the balls to do it yet on my P4.