hi, are you sure it isnt a manufacturing defect? With regards to the bending of the heatsink. This sounds highly unusual.

Another excellent review, thanks!

I hope Arctic Cooling make an 8800 version. The Acclero seems to be by far the best GPU heatsink available, considering it's performance and price. It is also far more compact than the HR-03 and more effective than Zalman products. As a bonus, you can optionally use your own fans quite easily, although your review states that the turbo module fans are inaudible. That in itself is impressive - most "silent" products are anything but. I'm looking at you, Zalman.

One interesting thing I did notice was that you managed to reproduce some of the CPU heating results I had with the HR-03. With the stock cooler, your CPU temps went up 3C when ATITool was activated, and 1C with the Accelero when fan speed was increased.

3C might not seem like a lot, but keep in mind that the review machine only had a single core CPU. Running ATITool uses some CPU power, and so tends to reduce heat output on the CPU by a up to 6C in my experience. Thus, on a multi-core system which would be less affected by running ATITool, the difference could be more than 3C.

Nice review, thanks SPCR! On page 7 there are two issues:
1) The noise levels with the Turbo module are lower than passive, why is that (doesn't make sense to me)?
2) Quoting: 'The sleeve bearings may not last as long in the vertical orientation the fans will be run in'
Dont' you mean 'in the horizontal orientation'?

For mid-power cards like the 8600GT, in a NSK 2480 case, a smaller passive cooler, that would fit vertically, would do great IMO.
By blocking the top vent and opening a PCI slot, enough airflow would boost the performance of such a cooler.
BTW, why didn't SPCR test that, to see the effects of the open PCI slot compared with the Turbo module?

I think that if AC take their design of the S1, cut it in half so it fits for HTPC use they would also have the dominant place in VGA cooling there.

It's a simple design, but as we've seen from both reviews, it works great.

With the turbo module attached, does the VGA card with the Accelero S2 installed take up 3 slots in total? Thanks.

Mike,

I forgot to mention that to you. Looks warped to me, possibly from when it was being soldered together.

It's a dual-core Pentium D930 with a TDP of 95W, which is higher than most current CPUs.

The passive results are with the system fan at 7V, 9V and 12V. The results with the Turbo Module are with the system fan at 7V throughout, and the TM fan at 7V, 9V, and 12V.

In otherwords:
System fan at 7V + TM at 9V = quieter than system fan alone at 9V.
System fan at 7V + TM at 12V = quieter than system fan alone at 12V.

Lack of G80 support makes me a sad panda.

Arctic Cooling announced the Accelero Xtreme recently. There are versions of that for the G80 8800 card,s and also the ATI HD2900XT:

Reviews:
http://legionhardware.com/document.php?id=713

http://www.guru3d.com/article/cooling/487/1

One of those with some different fans attached should be quite good.

Nice and very professional review - again

I also think SPCR have made a great development of VGA cooler reviews.

A while back, I think the VF-900 was over-estimated by SPCR regarding how quiet it would be. Maybe the sound-samples could have warned me, but I have some troubles playing them.

Anyway, there wasnt many VGA cooler reviews, and the ones there were, was often with active ones.

With the above in mind, I find SPCR have done a strong comeback with passive coolers, and especially making comparable test of third party coolers, and standard passive VGA coolers from 2-3 manufacturers.

Well done !


Best regards,
Thomas

Wow, from the reviews it looks excellent! I can't wait for some 8800 based reviews to come in. The nVidia stock cooler is actually quite good, at least in terms of noise. I imagine the Accelero will bring similar noise levels at much better temperatures. So cheap as well...

Actually, it is almost exactly what I suggested would be an ideal cooler for the 8800s. I don't imagine for a second Arctic Cooling read my humble post but it's nice to know I wasn't too far off the mark The only thing I would change is the orientation of the fins - having them lengthwise so air flows out the back of the case. I imagine AC put them that way so air didn't have far to travel over the fins, giving it less time to warm up. Maybe that's one of the reasons it out-performs the stock cooler so much.

I guess I'm not that creative. But has anyone successfully cut heatpipes while successfully preserving both pressures and coolants? Or is he suggesting bending the S2, making a heatsink loop?

What'as the solution?

is S2 workin' on leadtek 7600 gt AGP.? i ask because i saw on their site that it supoused to have 3 bolts but, the card has only 2 houls that i measured and came close with the describtion (scuze my bad english).

No, no, don't cut the heat pipes!

A determined and fairly skilled modder can reduce the profile by cutting away some fins and (carefully!) bending the heat pipes.

most aftermarket coolers aren't compatible with AGP cards because they have a second chip (the HIS PCIe>AGP bridge I think) that needs cooling and aftermarket coolers don't cool it. You can buy HIS heatsinks though (Zalman do one) though you still need to be careful if the GPU is oriented at an angle, as it is on some AGP cards. Anyway, as long as the holes are in the right place and you take care of cooling the HIS chip, you'll be fine

Does anyone know which of these Arctic Cooling S1, S1 R.2, or S2 will fit an Invidia Quadro FX 3500. I think that it has a G71 processor and have even less information that it is similar to a 7800 pcb. I cannot seem to confirm either of those and Arctic Cooling keeps telling me to check their FAQ when I send them a tech support question.

Also I have a P182 case. Instead of attaching the fan to the heatsink, would it work to attach the fan to the upper drive cage and blow air across the heatsink?

I am really looking forward to replacing the stock fan on the Quadro FX 3500. It really whines a lot with a distinctive high pitch sound.

Thanks.

I don't know if it'll fit on the card, but if you just have any fan blowing air across the heatsink it'll work perfectly. Doesm't need to be on the heatsink at all.

The problem is that the fins run from side to side, not length ways. If they were length ways, air could flow from the fan down them. Being side ways, it will hit the first one and be deflected.

the installation diagrams look as if it the fins run the long direction of the graphics card.

but i still can not figure out which version to buy or if i will be able to mount it to my graphics card. they do not list the quadro cards on their website. again if anyone knows if and which model will fit a nvidia quadro fx 3500 (which i think has a g71 processor and is similar to a 7800 board but have no real confirmation of that) please let me know.

thanks for your responses.

spaceghost --

You need to look at the PCB side of your board and measure the distance between the heatsink mounting holes. Then compare that to the mounting holes on the S1 or S2. Or just go ahead and buy an S1 Rev. B, since it fits just about every current consumer card. It's $25 -- chump change, really.

Except the G80.

MikeC,
I've been thinking about something since I first saw the S1/S2/TM. Since the fins protrude outside the horizontal area of the vid card - wouldn't it be a good idea to have the fan blowing upwards through the fins and vid card and thereby move the hot air directly towards the case fan which expels hot air from the case. Air being moved downwards will have to make an unneccessary u-turn and circulate inside the case before getting out, right?

Perhaps strapping a slow 120 mm fan (or reversing the Turbo Module fans?) upside down beneath the S1 could be an interesting experiment on SPCR?

P.S.
Eagle156,
G80 owners should check out the Accelero Extreme mentioned previously in this thread.

The Nvidia Quadro FX3500 looks very similar to the other Geforce 7 cards. If the distance between the mounting holes is 53mm then you'll be able to fit most aftermarket coolers to your card.


Mounting hole spacing needed to fit Accelero S1 rev 1 is 53mm measured centre to centre

It's worth mentioning that you can easily fit a Thermalright HR-11 cooler at the same time as an Accelero S1. The screws that come with the HR-11 use the same thread as the Accelero S1 fittings.

http://www.thermalright.com/new_a_page/ ... VzaWFzdA==

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