Dual CNPS-7000 setup
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I heard first big zalman heatpipe heatsink, the ZM80 (pre-A) I think, needed to be toned down because it was too heavy. A 750 gram heatsink on a video card sounds dangerous, and even 440g seems like a little much, especially if thermal adhesive has a lower limit.
Wouldn't a flower be sufficient? A 6000ALCU is only 270g(partially because the fan has to be mounted seperately), a 3100+ is 296gand a3000+ is 148g. Plus they should be cheaper. Since GPU's don't need to be as cool, a heatsink that can handle a 60-70 watt CPU should be enough. And a GPU core is, AFAIK, bigger than that of a palomino.
I did this with the little 3000 recently, although only for passive cooling.
And it wouldn't be all that cheap if you don't already have some thermal adhesive.
Keep in mind, not everyone wants to run at stock speeds. I see this posted all the time that 'the GPU temperature doesn't matter', but when it comes to performance (which usually does not mix well with silence), it DOES matter.
Even so, some stock cards, unmodified the day they came out with the box, are having heat related issues with Doom 3.
GPU temperature DOES matter.
At any rate, I recall seeing a post a long time ago about someone rigging a spare 7000A onto their vidcard, but that its huge girth prevented the person from installing it into their AGP slot (Radeon card, I believe). It would seem the GFFX this person is using does not have the same problem.
Even so, some stock cards, unmodified the day they came out with the box, are having heat related issues with Doom 3.
GPU temperature DOES matter.
At any rate, I recall seeing a post a long time ago about someone rigging a spare 7000A onto their vidcard, but that its huge girth prevented the person from installing it into their AGP slot (Radeon card, I believe). It would seem the GFFX this person is using does not have the same problem.
I agree; if the card is tested in the winter, it'll need headroom for extra summer heat, and what works for one PC might not work for another or even the same one with some alterations, better safe than sorry.zoob wrote:Keep in mind, not everyone wants to run at stock speeds. I see this posted all the time that 'the GPU temperature doesn't matter', but when it comes to performance (which usually does not mix well with silence), it DOES matter.
Even so, some stock cards, unmodified the day they came out with the box, are having heat related issues with Doom 3.
GPU temperature DOES matter.
Any idea by how much? Could it be snipped down to fit? I didn't think of that, but I was wondering how the base size compared to that of the flowers, which is the only reason I mentioned the CNPS3100, althought it's slightly heavier and rated lower than a 6000AlCu, it's 52mm wide like a 3000+, not 63mm like a 6000.zoob wrote:At any rate, I recall seeing a post a long time ago about someone rigging a spare 7000A onto their vidcard, but that its huge girth prevented the person from installing it into their AGP slot (Radeon card, I believe). It would seem the GFFX this person is using does not have the same problem.
Another potential advantage that I see with the flowers is they could be ducted like a VGA silencer, with a fan blowing across, like this:
or like this:
Anyone know which of these would work better?