TFC Monsta Testing Complete - Page 2 - Overclock.net

Martinm210 · 06-09-09

Quote:

Originally Posted by Error 404

Oh lord. You'd test it too

This looks interesting - I always thought these were the sort of "Fatal1ty" of rads - big, branded and clumsy. It seems I though wrong, and I'm not ashamed to have

As with radiators in general, bigger does usually mean better. This one is a bit unique though. Most radiator gains especially with lower RPM fans comes from frontal area, not thickness. Thickness doesn't really start helping until the higher speed fans unless is very very low density. At 9FPI, a 140mm design, and quad thickness....it has a little bit of everything. It has the extra frontal area of the 140 for good all around performance and the extra thickness for the higher speed stuff.

Quote:

Originally Posted by ChielScape

ask HWLabs to make a double-stacked GTX560.

tell them to send me one too.

Quote:

Originally Posted by ira-k

Thanks for the testing! Man that thing flows like a sieve doesn't it, I like that in a rad that's still capable of removing some serious heat..

..One of those would be perfect on each of my TEC block outs. I might seriously have to look at getting 2 of those when I set my TEC bench back up, I was going to get another 480GTX but that rad is almost to good to resist.

So what your saying is that the average between in/out would be a consistent flow neutral measurement from rad to rad? But wouldn't the flow rate still figure into it since the loop flow is a constant?

But thats not what your saying, its the C/W value. Its early in the morning for me..

Thanks for the testing as always, its appeciated!

What measuring in and out average does is eliminate the error caused by the delta between the two. This delta between in and out is influence by two things. First there is flow rate which isn't a problem if you test fixed. But if you test at various flow rate to look at flow rate effect, you'll get bad numbers using water out since the higher the flow rate the smaller the delta. The second error is cause by the heat dissipated with that particular fan. At very low heat loads and dissipation, the delta is small, and the opposite for when it's large.

This can add up to about a degree of error in testing if using "Water Out" only. But if you measure at both inlet and outlet and average the two, it completely eliminates these two problems. No matter how much of a delta there is between inlet and outlet, the average is always the same.

It's just a more accurate way to test radiators. It does however make your results slightly different. Since you're measuring to the average of inlet and outlet, the heat dissipated appears to be lower than the water out method.

Thankfully I did measure inlet and outlet on most of my past radiator testing, so it's simply a matter of recalculating the numbers...

You might also take a look at the 560GTX with some 140mm San Ace high speed fans if you can find a source. I just havn't been able to find much on the 140mm high speed front...fan selection is very poor right now.

**ira-k** · 06-09-09

Quote:

What measuring in and out average does is eliminate the error caused by the delta between the two. This delta between in and out is influence by two things. First there is flow rate which isn't a problem if you test fixed. But if you test at various flow rate to look at flow rate effect, you'll get bad numbers using water out since the higher the flow rate the smaller the delta. The second error is cause by the heat dissipated with that particular fan. At very low heat loads and dissipation, the delta is small, and the opposite for when it's large.

This can add up to about a degree of error in testing if using "Water Out" only. But if you measure at both inlet and outlet and average the two, it completely eliminates these two problems. No matter how much of a delta there is between inlet and outlet, the average is always the same.

It's just a more accurate way to test radiators. It does however make your results slightly different. Since you're measuring to the average of inlet and outlet, the heat dissipated appears to be lower than the water out method.

Thankfully I did measure inlet and outlet on most of my past radiator testing, so it's simply a matter of recalculating the numbers...

Oh OK I get you now, its just like measuring pump dynamic head pressure, instead of outlet pressure only you subtract the inlet from outlet pressure, that way you would really get a more accurate idea of multiple loop performance off the test bed. Except your calculating the C/W.

Thats a good idea, it will keep everything more consistent from rad test to rad test to since there are a few less variables.

Quote:

You might also take a look at the 560GTX with some 140mm San Ace high speed fans if you can find a source. I just havn't been able to find much on the 140mm high speed front...fan selection is very poor right now.

I'll probably just get another 480GTX to go with the one I have now. I'm getting a 2.5C rad out anyway. That TFC just flows so well I could get my flow above 2.5GPM again running 2 of those off my TEC block outs. Its all 3/4"x1.25" from res to pump to block, then the 2-1/2" outs from the block,I've been Y'ing back to the one rad. I don't need it really but I'd love to get a 1C rad out with a 5-600W load, that 2.5C just annoys me for some reason..

Thanks for the clarifacation on that, that looks like a really good way to measure it.

Martinm210 · 06-09-09

Quote:

Originally Posted by ira-k

That TFC just flows so well I could get my flow above 2.5GPM again running 2 of those off my TEC block outs. Its all 3/4"x1.25" from res to pump to block, then the 2-1/2" outs from the block,I've been Y'ing back to the one rad. I don't need it really but I'd love to get a 1C rad out with a 5-600W load, that 2.5C just annoys me for some reason..

Yeah, the restriction is exceptionally low, many time less than the GTX. This thing is thick enough it acts alot like a GTX too with the high speeds, it would probably be pretty close, especially with some really strong 140mm fans.

I just see 140mm format fans and rads the way to go, I suspect we'll see more too.

**ira-k** · 06-09-09

Quote:

Originally Posted by Martinm210

Yeah, the restriction is exceptionally low, many time less than the GTX. This thing is thick enough it acts alot like a GTX too with the high speeds, it would probably be pretty close, especially with some really strong 140mm fans.

I just see 140mm format fans and rads the way to go, I suspect we'll see more too.

Hey you have to love a rad that basically has 0 restriction, 2 of those on my block outs would almost be like free flow compared to most rads. I know I'll probably just do another 480GTX, but 2 of those would be sweet!

Honestly thats the first rad that has gotten me a little excited since the GTX first came out. A rads,a rad is a rad but every now and then something unique shows up..

..That many tubes and that thickness even with a ultra low fin count that can cool as well as it does with almost 0 restriction is just cool.

kimosabi · 06-10-09

I'm curious about the Triebwerk fans. Are they noisy? How do they undervolt?

Martinm210 · 06-10-09

Quote:

Originally Posted by kimosabi

I'm curious about the Triebwerk fans. Are they noisy? How do they undervolt?

I've got the fan videos up if you're interested. This should give you a better sense of the sound quality from the fans.

TK-121

YouTube - R3 TFC Triebwerk TK 121

TK-122

YouTube - R3 Triebwerk TFC TK 122

And I'm off to the sand dunes for the weekend...cheers!
Martin

ChielScape · 06-10-09

so the red one is volrage... what are the other two?

Starbuck5000 · 06-10-09

How would these compare to Delta's, UK's or san aces?

Extreme Newbie · 06-10-09

I assume that the 1 meter is voltage, 1 is is DB and the 3rd is for......?

kimosabi · 06-10-09

I believe there's one Anemometer(wind speed/pressure), one Voltmeter and a db-meter. Those fans are really nice. Love the frequency on them. Thanks Martin!

06-10-09	#17 (permalink)
ChielScape Powerslide Join Date: May 2007 Posts: 8,899 Rep: 651 Unique Rep: 450 Trader Rating: 0	so the red one is volrage... what are the other two? __________________

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TFC Monsta Testing Complete

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