Originally Posted by Ceadderman
I believe that Dow Corning makes Shin Etsu G751. I could be wrong but every time I go to the Shin Etsu site I always see Dow Corning prominently displayed on their site.
And the reason I say to scrape it off and reapply it is cause it's generally too thick to begin with. I know the H50 was rather caked on when I got it. I scraped off the TIM and didn't reapply it because I lapped both the Pump and the CPU. I should have reused the TIM but TIM isn't that expensive so I didn't stop to consider it. There are others here who did reuse it after scraping it off.
According to this post, they are different TIMs. I have no doubt that Dow Corning may make Shin-Etsu TIM for someone, but they are not the same TIM (they're not even the same colour as H50/70 TIM is pink, and H80/100 TIM is white).
(better late than never)
Originally Posted by simonfredette
never if your temps dont go up , otherwise everytime I take a block off for any reason.. Ive heard of people doing it every six months and if that works for them , I just go by the "if it isnt broken dont fix it " motto.
What he said.
The static pressure on those fans is only 2.653 mm-H2O (max). The pressure on the H100 fans is 7.7mm-H20. Those fans will not perform even close to as good as the stock H100 fans.
However, it depends on what you want. If your willing to accept higher temps for nicer looking fans, then go for it.
Evidence? I just installed two of these fans on my H100:
(youtube video of the swap and results:)
Their static pressure is 2.18 mm-H2O (very close to the fans you're looking at).
I was using a couple of Scythe Slipstream 1900 RMP fans (110 CFM) which I thought were not all that great. When I installed these new fans this weekend (because they light up like a freaking casino) my temps went up by 6-8c at max RPMs using Intel Burn Test. So, I would expect even more of a difference if I was comparing to the stock H100 fans, as they are over 7mmH20 and really high performing fans. The only reason I would replace them is if I wanted four pin PWM fans (which I did), or if I wanted quieter fans and I was willing to see a performance drop at high load. In fact, if the Corsair fans were PWM, I would still be using them. I switched to PWM for the same reason it looks like you want to, so my motherboard could control my fans.
Here is my before and after:
Needless to say, I will likely be putting my Scythe fans back in.
I'm a little confused here:
"Hi guys i was wondering if using these fans would hinder the performance of the h100 I just purchased?"
"Well I don't have the h100 but doesn't the little controller on the cpu block directly change the fan speed or is that for the pump?"
In one message you say you just bought it, and in another you say you don't have one.
The short answer is, yes, the fans you provided a link to will
hinder the performance of the H100.
The H100 block has three control ranges:
Low - 900 RPM to 1300 RPM
Mid - 1300 RPM to 2000 RPM
High - 1600 RPM to 2600 RPM
That's using the stock fans. For each click of the button on the block, you move the range up one. Personally, I also changed my fans to PWM fans (the Scythe Slipstream 1900 RPM fans I mention above). Even though they are not as good as the stock fans, they're still fairly good when considering the comparison I just did to the 2.18 (mm-H2O) fans I mention above.
Originally Posted by simonfredette
yeah , with the amount you can actually change temps with hydro series I wouldnt worry about it too much , your temps wont vary much between ideal fans or the ones you want , the rad isnt that big and the block isnt as efficient as a high performance custom loop one , it comes down to how important is 2 degrees to you kinda thing.
Have you tested that or did you see it somewhere? My testing shows otherwise. The stock H100/80 fans are excellent fans for pure performance. In fact, even my idle temps have gone up by about 8c from my fan change this weekend. My idle is now about 40c at a 24c ambient. With the Scythe fans, I was getting an idle of about 32c (by idle I mean web browsing as I am doing now). This and I wasn't even using the H100 stock fans which are better than the Scythe fans I was using.
Originally Posted by JAM3S121
got a little worried just reading through the corsair forum about the h100
We have two in our house and they're both working perfectly. I know some people have had some noise issues with the block, but I don't think it's prevalent.
If anyone wants to show two ~2-3 mm-H2O fans performing close to two 7.7 mm-H2O h100 stock fans using Intel Burn Test or Prime 95, I would love to see it.
The basic fact is, if you want looks you're likely not getting performance in regards to fans. With as large a change in temps as I'm getting with these "casino" fans I tried, I will be reinstalling my Scythe fans this weekend. This is not written in stone or anything. There may be great fans out there that also look awesome, but generally speaking most LED fans are not great fans (at least from what I've seen).Edited by Mergatroid - 8/7/12 at 5:44pm