Hey all,
Toying with the idea of disassembling my new Tx2z laptop and replacing the standard crap heatsync paste on it with some IC7 Diamond compound to help a little with the processor temps and as a side result, hopefully lower the fan useage as well because of that. I have had awesome luck with IC7 in desktop applications vs stock putty, and even vs Artic Silver it performs slghtly better at thermal transfer. Was half considering some minor lapping of the CPU as well but dont trust myself to do this on a mobile processor quite yet.
Probably going to do this in conjunction with undervolting the CPU as well so as to gain a large benifit from this all at once.
Any opinions or suggestions from someone who might have done this themselves?
Moderator - Creator of Tx2 Touchsmart All in one Installer.
Touchsmart Tx2z Laptop: AMD ZM-87 CPU, 4gb Corsair DDR2 2x2gb, 256gb Corsair Performance SSD, Windows 7 Ultimate Signature Edition.
I'm probably just as much of a hardware tinkerer/nut as you are, but I typically don't toy with notebooks unless there's a real need. What temps are you seeing, and how often is your fan kicking in?
Mind Over Matt'er - Technology musings, opinion, and more straight from TechLore's head geek.
use an ice cube tray and keep the screws in order by which layer they came out of ( or general area) Take notes or pictures if you get nervous about forgetting how things go back together. Sounds like you know how to actually apply the paste already. If you going to tear it apart, maybe just replace the heatsink with a better one also while you are at it.
Well, if jollywombat was working on a desktop, I'd probably agree with r4l9. Since we're talking about a notebook, I don't see how you'd replace the heatsink with a "better" one.
Mind Over Matt'er - Technology musings, opinion, and more straight from TechLore's head geek.
Manual ...if you need it.
Also, Matt, unless I'm reading wrong, I do not believe that replacing the heatsink is his intent, he would be looking at the benefits denoted here.
PrototypeNM1 said: Manual ...if you need it. Also, Matt, unless I'm reading wrong, I do not believe that replacing the heatsink is his intent, he would be looking at the benefits denoted here.
I was commenting on r419's comment to replace the heatsink with a better one. I'll admit I've never gone into great depths searching, but I've never seen third-party replacement heatsinks for specific notebooks.
jollywombat can replace the thrermal compound, and I understand the potential benefits. I also understand that it would probably void the warranty, and that the potential for breaking something is probably greater than the benefit in the end.
Mind Over Matt'er - Technology musings, opinion, and more straight from TechLore's head geek.
I have done quite a bit of work on laptops before, and years and years of desktop hardware work, but the laptops generally when they are older and not under warranty anyways when I am doing repair work on them.
Having a week old tx2z on the other hand gives me pause before tinkering with hardware. Then again, the potential to help it out alot since I do alot of CPU intensive applications would be helpful and I am also one of those people who dosent subscribe to the phrase "if its not broken dont fix it". ;)
No replacement heatsyncs for laptops that I am aware of. I could lapp the heatsync contact plate itself though if I wanted to improve its effiency though. Hmmm
Moderator - Creator of Tx2 Touchsmart All in one Installer.
Touchsmart Tx2z Laptop: AMD ZM-87 CPU, 4gb Corsair DDR2 2x2gb, 256gb Corsair Performance SSD, Windows 7 Ultimate Signature Edition.
The heatsink compound MAY make a very small difference but keep in mind that there is a big difference between desktops and laptops. Desktops tend to have a larger internal volume of air circulating around so cooling is usually pretty easy. A laptop, on the other hand has almost no internal volume for circulating air so the only way to keep things cool is via the fan and the heatsink. The fan must continually move air across the vanes on the heatsink in order to draw the radiated heat up the heatpipe from the cpu and out the back/side of the laptop.
Improving the heat transfer will help a little but will not eliminate the fan noise as the fan must run constantly.
Also, the AMD Turion runs a lot hotter than comparable intel chips, so if you are used to an intel based laptop, you are comparing apples to oranges.
David
http://i99.photobucket.com/albums/l299/xz550rj/HPMagicGiveaway.jpg
Woohoo! I won my Touchsmart!
I just took a break to do som objective measurements. Using a radio Shack Sound level meter, the ambient noise in my home office is around 60db average.
Turned on my TX 2500 (which is similar to the TX2) with the ZM-80 2.1 gHz CPU. In power saving mode the sound level was 62 db.
Changed to High performance and the sound pressure level went up to 68db after opening up MS Word, Paint, IE, and Windows Media Center.
Switching back to Balanced stepped the fan speed down in two increments at about 30 second intervals and back to 62db.
Measurements were taken at a 45 degree angle 8" from the corner of my laptop facing the fan port.
How does that compare? Well, rustleing leaves is about 10db, a quiet room is about 30 to 40db, nlrmal talking is roughly 40 to 60db a car passing at 30' is about 80 db.
Now, to find my laser temp sensor to measure how hot it is....
There you have it, some objective results.
David
http://i99.photobucket.com/albums/l299/xz550rj/HPMagicGiveaway.jpg
Woohoo! I won my Touchsmart!
Matt Whitlock said:Oh, sorry about that Matt, missed where you were quoting.PrototypeNM1 said: blahI was commenting on r419's comment to replace the heatsink with a better one.
I have done this on other laptops and yes, it does make a difference in CPU temps.(Also, my last two laptops have had AMD Turion processors, very aware of their above average heat output.)
Best case I have had so far on my dv6000 laptop was a 6c drop in temp after just replacing the thermal compound.(The stuff they had on it stock I swear was an insulator rather than heat conductor) The undervolt after that provided an additional ~5-7 drop. Noticable drop in fan useage on it after that.
This is what I am hoping to achieve with the Tx2z, hoping someone else might have done this on this particular laptop before me however so I can glean some advice and post-test results from them before I mess with my warranty :).
Dave, For another baseline test, would you mind running a CPU burn test like prime95 or such to see what the dB is when processor is maxed out?
Moderator - Creator of Tx2 Touchsmart All in one Installer.
Touchsmart Tx2z Laptop: AMD ZM-87 CPU, 4gb Corsair DDR2 2x2gb, 256gb Corsair Performance SSD, Windows 7 Ultimate Signature Edition.
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