Update: Seems to work pretty good! Anyone try Shin Etsu G-751 thermal compound?

[Engineer]

Just curious as to your results? My new Dell 3.2GHz PC was running toward the 58C with a full load (SETI 24/7) and I decided that a little AS III would cure the problem....but the problem (which probably wasn't a problem anyway) went up. With AS III, the temperature went to 63C and stayed there. I cleaned and reapplied several times (100% Isopropyl achohol). I tried the original AS (version 1) and the temp went to 65C and stayed there. Even after a week, ASIII temps were around 62 to 63C.

I just received the Shin Etsu G-751 compound and applied it. It's very thick....worse than dry peanut butter....but, the temperature has leveled off at 60C and holding...and, this stuff is supposed to drop a few degrees over a 3 or so day period. (A note: The stuff that Dell had under the heatsink looks exactly like this stuff...right down to the dark gray thickness).

Anyone else tried this stuff....seems like a winner in the early stages....I'll update this thread as the next few days pass.

Update: dropped to 59C as of now...

 

[lchyi]

Yea, but they'll always be within a few degrees of each other. Did you make sure that your application was thin enough? Because maybe your actually hindering the thermal transfer between the processor and the heatsink. Try to reapply it as thin as you can then go for it again. So far I've used ASIII, ASC, ASSX-86, and Nanotherm XTC.. they seem to all perform pretty well.

 

[Engineer]

Originally posted by: lchyi
Yea, but they'll always be within a few degrees of each other. Did you make sure that your application was thin enough? Because maybe your actually hindering the thermal transfer between the processor and the heatsink. Try to reapply it as thin as you can then go for it again. So far I've used ASIII, ASC, ASSX-86, and Nanotherm XTC.. they seem to all perform pretty well.

Yep. I used the tip of a cleaned credit card and placed just enough to make contact. I'm not so sure that MY ASIII was actually that good anyway. I've had it since it was initially released and it really didn't seem much better than the original AS. Regardless, 3 to 4C seems quite a lot of drop for the first day. I did add a little more ASIII at one point (a little thicker), but made no difference. One point that I've read several times now....even 62C isn't bad considering that it's being takent from "Inside" the chip opposed to the outside. Considering that Intel's own thermal shutdown doesn't happen until 135C seems to confirm that this is a perfectly OK temperature!

Edit: All the reviews (that I could find) seem to back up the fact that this stuff cools 3 to 4C better also!

 

[lchyi]

Yes 'tis true that ASIII isn't the king of TIM anymore. But it's still a good compound. And 135C maybe thermally correct stage of Intel tolerance, anything over 70C is a HUGE red flag.

 

[beatle]

I haven't tried it for the specific reason that even experienced people have said that it can be a pain to apply, especially if you're trying to conserve some of the compound for another install. I also have this nasty habit of upgrading, so I'll just stick to the simple stuff.

 

[mechBgon]

Where'd you get it, Engineer?

 

[OneOfTheseDays]

I have the cooler master version of the shin etsu which I got at PCClub. It works very on my CPU and dropped temps to low forties. However, do not use it for anything other than the CPU because it is a bitch to put on and doesn't spread easy at all.

 

[Engineer]

Originally posted by: mechBgon
Where'd you get it, Engineer?

Found it online....The Ajigo-store (a yahoo store)...cost around $10.00 shipped for a 1 gram tube (expensive! ) :Q

 

[Almighty1]

Originally posted by: Engineer
Just curious as to your results? My new Dell 3.2GHz PC was running toward the 58C with a full load (SETI 24/7) and I decided that a little AS III would cure the problem....but the problem (which probably wasn't a problem anyway) went up. With AS III, the temperature went to 63C and stayed there. I cleaned and reapplied several times (100% Isopropyl achohol). I tried the original AS (version 1) and the temp went to 65C and stayed there. Even after a week, ASIII temps were around 62 to 63C.

I just received the Shin Etsu G-751 compound and applied it. It's very thick....worse than dry peanut butter....but, the temperature has leveled off at 60C and holding...and, this stuff is supposed to drop a few degrees over a 3 or so day period. (A note: The stuff that Dell had under the heatsink looks exactly like this stuff...right down to the dark gray thickness).

Anyone else tried this stuff....seems like a winner in the early stages....I'll update this thread as the next few days pass.

Update: dropped to 59C as of now...

So that is what they used. I remember removing the HS off my friends P4c-3.2Ghz in his Dimension XPS and it was the normal wet thermal grease but dry dark gray stuff that was easy to remove. The Shin-Etsu G-751 is what Intel uses between the core of the P4 and the Integrated Heat Spreader. It's good stuff but since the core of the CPU has to go through G-751 through the Nickel plated Copper IHS and then another layer of Thermal Grease before it hits the heatsink, it's not the most efficient. G-751 is supposed to be better than AS3 but Nanotherm's PCM+ is better than both of them and is the easiest to apply as PCM is a Phase Chase Material liquid and all you do is apply one drop to the top of the IHS and the bottom of the Heatsink and then wet the surface, it'll work wonders.

See this review... ithinkpc.com sells PCM+ at $10.00 with free shipping.

http://www.thecrucible.ca/reviews/thermal/

Another thing is the Dell doesn't use Active cooling, it has a heatsink but no fan so the temps are higher than on a non-Dell machine as on a Dell, it goes through a heat duct and then two 80mmx38mm Nidec fans exhaust the heat out of the back of the chasis even though the heatsink seems to be using copper heatpipes with Aluminum, the mounting bracket seems to be non-standard.

 

[Almighty1]

Originally posted by: Sudheer Anne
I have the cooler master version of the shin etsu which I got at PCClub. It works very on my CPU and dropped temps to low forties. However, do not use it for anything other than the CPU because it is a bitch to put on and doesn't spread easy at all.

The Cooler Master version is not the same as the G-751. THe G-751 is the better stuff that Shin Etsu makes.

 

[Davegod]

I've got G-751 on my CPU. its perfectly good paste but anyone getting more than 1/2C difference between ANY quality goop is either lying or one time applied it better than the other time.

It is a pain to apply to the cpu, goes almost like putty if its cold, warm the tube up a bit before squirting it out.

 

[Engineer]

Originally posted by: Davegod
I've got G-751 on my CPU. its perfectly good paste but anyone getting more than 1/2C difference between ANY quality goop is either lying or one time applied it better than the other time.

It is a pain to apply to the cpu, goes almost like putty if its cold, warm the tube up a bit before squirting it out.

Sorry...not lying...reapplied the AS3 three times...very thin layer. Very clean processor (and I mean clean)! Also, some of the tests out there (I'm sure some are very well done) show results similar to mine. Not all mind you, but many.

 

[Engineer]

Well, after a few day of "settle" or "burnin", the Shin Etsu has my 3.2GHz running between 57-58C in the same conditions that it ran at 62-63C under ASIII. As I said earlier, I don't think the syringe of ASIII was every really "right" or "good" as I haven't achieved "good" results on any PC that I've used it on (I have 15 PC's running in my house...SETI 24/7 on all). Anyway, I'm happy with the results. I know 57-58 still seems high...but I'm not too worried considering how how the old 1.0GHz TBirds were when they came out!