Mini-review - Zalman VF900-Cu Fatal1ty

A friend of mine from www.aquapc.com, bring from the CEBIT a sample for review of the Zalman VF900 Fatal1ty (with read leds) - of course the retail box will be diferent - big with Mr. Fatal1ty marketing and full of useless things :)

Here is 2 photos:

http://img483.imageshack.us/img483/1...46small3fq.jpg

http://img483.imageshack.us/img483/7...48small2rp.jpg

I presume that, except the leds, the perfomance is equal to the performance Zalman VF900-Cu, the max rotation speed is exactly the same (2400rpm).

Here is a photo monted in a SLI-DR with a X1900XT Crossfire Edition

http://pedrorocha.planetaclix.pt/X1900_ZalmanVF900.jpg

1st - The assembling is quite simple if you RFM :) - diferent from previous Zalman video card coolers

No screw-driver is necessary and you will get a perfect contact with the core at the 1st atempt ..bravo Zalman nice work :clap:

2nd - noise, an abysmal diference - at full speed (2400rpm) is very aceptable / at low speed (around 1200rpm) is vaguely audible - what a huge diference from the vacuum cleaner noise of the ATI stock cooler :D

3rd - perfomance

Here is the temp with ATI Stock Cooler after testing artifacts for 2min

http://pedrorocha.planetaclix.pt/X19...oolerTemps.jpg

- 70ºC on core (penultimate sensor)
- 67ºC temp on PCB near voltage regulador (critical area)
- 56º C on memories (I think)

And now with Zalman VF900-CU on, also after 2 mins. of artficat scan - fans at around 75% (near 2000rpm)

http://pedrorocha.planetaclix.pt/X19...almanVF900.jpg

- 48ºC on core (a 22ºC gain :eek: )
- 59C near the voltage regulador (a 9ºC gain)
- 38ºC in memory area (18ºC gain)

I was so amazed with the decrease in the temperatures that I repet the test again - but thats true ..core never passed 49ºC :)

Once again Zalman did a very nice job, maybe it is time to ATI start talking with Zalman experts before doing such a dreadful stock coolers

In conclusion : an absolutely essentital upgrade for all ATI X1900 and and X1800 owners.

Pros:
- Silence
- Big improvements in temperatures (not only in core, but also on PCB and voltage regulator)
- Nice-looking (altought I dont like leds)
- Small (with expert or crossfire DFI / Asus no problem with SLI or CF)

Cons:
- None (except that is not yet largely available in the stores)

Next: overclocking test and testing with 7800GTX 512MB:)

This is Pedro Rocha, over and out :D[/SIZE]

thats not a Fatal1ty? whoops, it is. hmm, i wish it was red then :(

It just angers me so much that I ordered an Accelero X2 before I knew this thing was available! That's $25 of worthless air cooling I don't know if I can afford to replace immediately :P

The Accelero actually cools less than the stock cooler at full speed, so overclocking is going to be interresting..............

Anyway nice review thanks for the heads up, at least my rady will look beefier inside my case than yours does :rolleyes:

Thanks for the preview Pedro :up:

Looks a lot better than I was predicting. Though it looks different than the standard VF900-Cu.....I thought the standard one was 1 slot? This looks like double-stuffed or something.

Here is some quick overclocking tests

This is the card stock voltages

http://pedrorocha.planetaclix.pt/X19...ltageStock.jpg

I raise the voltage to this :

http://pedrorocha.planetaclix.pt/X19...eOverclock.jpg

I raise the core from 500 to 620mhz, and the memories from 600 para 700mhz - here is the result after 3 minutes of 3D artifact scaning:

http://pedrorocha.planetaclix.pt/X19...clockTemps.jpg

With the stock cooler (even I can stand the vacuum cleaner noise of full speed - I can not) at this voltages speeds I suspect the 1900XT (non-XTX) will crash and quickly pass the 80ºC on core and near 90ºC on volt regulator..

What a difference - very nice work Zalman :clap: :clap:

very nice review man :up:

Good review there. Too bad this version will be 20 dollars more. :(

He said the fan speed is the same, so performance should be identical.

It's still not going to beat my CNPS9500 LOL
But still I might be interested to try one of these and reclaim my PCI slots.... :p

they look OK

hi, can you raise the vgpu to 1.425, because that is what stock is (in 3d mode)

right now i believe you are scanning in 2d mode with the voltage at 1.225v...which is actually only around 1.2v if measured with a multimeter (which i did)

please post results after you raise the voltage to stock! thanks!

I'm surprised at how well it seem to fit - nice and low profile :clap:

Nice review Pedro, if I did'nt have my Fusion block I would definately buy one :toast:

very nice upgrade from the stock cooler.

still doesnt touch water though ;)

of course not...its 58c at an undervolted 1.225v...

at stock voltage of 1.425...it'll be low to mid 70's i would assume

also...takes more than 2-3 min to heat up to max temp from scanning...more like...5-10min for me

Good job Chinkgai this is exactly what I was going to bring up. Big deal if it keeps the card cool at stock settings and what kind of voltage bump is 1.2? Try putting 1.4v+ and let it run longer than 2 mins to see how it will really hold up. I just installed an Accelero X2 with ceramique on my card last night and I am sure it is doing at least what that Zalman is. I get between 38-40c idle on stock and with an overclock of 680/750 1.38v for 15mins of running 3D I barely get 66-68c which I find very good for a dead silent cooling solution. This is running the card immediately after install so no cure time has taken place yet. If you got 58c after 3 mins of running only 1.2v I am sure you will hit late 60's with higher clocks and volts matching mine as mentioned here in this post. Remember as well, and this goes for us both, temps are only going to get hotter as the season moves on so we can expect higher temps in the summer months due to higher ambient temps.

I am not knocking your findings, I really appreciate them as you are one of the only ones to post results on this cooler. I am just asking that you go a little higher and be a little more extensive in your testing and please get back to us with your findings. Low temps on low volts is great but I am sure most people are putting 1.4-1.5+v through their card and need to know how it will cool at those high loads. Thanks.

I can pick one up for €39... Unless reviews convince me it cools a hell of a lot better then the vf700 I'm not going to bother...

It has a slight increase in cooling performance compared to vf700, and produces the same, if not quieter, sound.

I like this cooler cuz its low profile design :) + cooling performance
Probably the best aftermarket cooler out there that allows good air flow
in SLi setup, and also gives you more potential PCI slots :)

BTW, thanks for the review Pedro :) awesome work

nice review.
Aren't the heatpipes rendered useless in that position. They're facing down instead of up. temps might decrease some more if positioned right.

Quote:

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Originally Posted by mindwreck

nice review.
Aren't the heatpipes rendered useless in that position. They're facing down instead of up. temps might decrease some more if positioned right.

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I smell a mod coming :D

Quote:

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Originally Posted by mindwreck

nice review.
Aren't the heatpipes rendered useless in that position. They're facing down instead of up. temps might decrease some more if positioned right.

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Another reason why I love my Lian Li.. :D

Quote:

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Originally Posted by mindwreck

nice review.
Aren't the heatpipes rendered useless in that position. They're facing down instead of up. temps might decrease some more if positioned right.

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The cooler can be put on upside-down?

Quote:

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Originally Posted by g0dM@n

The cooler can be put on upside-down?

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:lol: :lol: :hrhr: :confused2

Sorry I could'nt help myself :D

Quote:

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Originally Posted by alpha0ne

:lol: :lol: :hrhr: :confused2

Sorry I could'nt help myself :D

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he has a good point.. you can mount that thing 4 different ways and yet they all cool the same :p:

Quote:

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Originally Posted by mindwreck

Aren't the heatpipes rendered useless in that position. They're facing down instead of up. temps might decrease some more if positioned right.

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contemporary heatpipes use wicking material which pretty much eliminates gravitiy from the equation, if that's what you had in mind.

IIRC this was discussed here several times.

BTW nice review Pedro! :up:

Quote:

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Originally Posted by high5

contemporary heatpipes use wicking material which pretty much eliminates gravitiy from the equation, if that's what you had in mind.

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I was told it used water. :mad:

So what exactly is wicking material? :confused:

of course it uses liquid for heat transfer... wick inside the heatpipe is used for capillary construction which transfers the liquid from one part of the heatpipe to another.

so you have liquid moving in one direction through the heatpipe using a wick, and vapor moving in other direction through the middle of the heatpipe (the part w/o wick, of course).

get it now? :)

I think that´s my next cooler ...

That's a pretty good overview, high5. Here's something a little more in-depth, if anyone's interested:

http://www.cheresources.com/htpipes.shtml

Meh, I'll stick with my vf-700.

i really like the look of it ^^

is the vf900cu as bad.. Tomorrow I will install it on my x1900xtx.. Damn though it was the best, IMO on Nvidia cards

I just got vf900cu.. it is one of the best coolers for nvidia.. but for mfg not for x1900-series.. idle og temp of ram are a lot better but gpu / core temp goes into 80´s if voltage is 1,4 vgpu... Damn thats high.. And yes the cooler was mount perfect, and the HS of zalman really got hot... I´ll go with the X2, can anyone say go for that, maybe they have own experiencies

X2 ian't any better than the stock cooler as fas as performance goes. It is a lot quieter though so as long as you don't plan to OC a lot. CPU coolers are really the only way to get performance and silence on the high end X1k cards.

Quote:

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Originally Posted by Cobalt

X2 ian't any better than the stock cooler as fas as performance goes. It is a lot quieter though so as long as you don't plan to OC a lot. CPU coolers are really the only way to get performance and silence on the high end X1k cards.

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nah, watercooling is ;) :D

1st To the peep uptop, the Accelo beat all other coolers inc the V900 is a review posted here few weeks ago, and NV Silencers are only 1-2C behind the V900 (now thats only in 1 peeps rig, it will vary from set up to set up).

2nd To peep above, yes most heatpipes use didtiled water added to acetone (which is chemical in maker pens.) but they need gravity to work, if they are mounted non upright they can use a wick inside pipes to suck up the water the water (same as a candle wick) the process is called capillary action.

Again people keep on talking about the Accelero but it isn't as good on a pure performance basis as the stock cooler. I also refuse to use it on the basis that exausting the hot air onto my mobo is the design decision to make me want to punch the designer in the face. If it exausted the other way it would be accptable as many cases have vents right next to the GFX card so all the air would go out of the case but they had to pick the stupid idea.

So the Fatal1ty one is just like the LED version just with red leds? :stick:

Nice preview! I was thinking of going with an Accelero but now I'm thinking I'm going to wait for this one. that or the regular vf900cu

Nice review =D. Gives me more reason to get the Vf900-Cu.

have a look in this thread before you choose to go for Accelero of Vf900Cu
A lot of users posted their testing result in here.

http://www.rage3d.com/board/showthread.php?t=33854396