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Hi,
I've been looking into an aftermarket cooling solution for my 4870 (reference design). The temps are fine after modding the BIOS, and get 58C in idle and 75-77C at full load. This is with fan speeds ranging from 30 at idle to a full blown 48 if it hits 75C, which is pretty audible.
Set this way, my OC limits are either 815/1000 or 800/1100, take your pick. No actual performance difference between the two as I've amply tested. At least with the 4870(512), +25MHz core will yield roughly 200 points in Vantage GPU, and +100MHz memory a bit over 100pts also. To go beyond that, say to 825/1050, stable (my first criteria is completing 3DMark06 - Vantage is too forgiving), I need to really jack up the fan speed to a very obnoxious 60-65%.
Right now, my number one choices are the Accelero S1 rev.2. with a selection of fans, or the Scythe Musashi. Naturally, I'll be taking into account and attending to the VRM issues explained by Arctic at their site, as well as covered by PCGH's review of the coolers.
Arctic suggests sticking heatsinks on the VRM or buying separately their Voltage Regulator Heat Spreader Module. PCGH is a little more practical, and suggests removing the VRM plate from the stock cooler, and using it instead, in conjunction with either of the cooling solutions.
Either way, the Accelero with fan(s) would go for roughly $40-45 as would the Musashi. The Thermalright T-rad is way too expensive ($55 with no fans). I'm quoting prices from CoolerGuys.
Any thoughts?
I've been looking into an aftermarket cooling solution for my 4870 (reference design). The temps are fine after modding the BIOS, and get 58C in idle and 75-77C at full load. This is with fan speeds ranging from 30 at idle to a full blown 48 if it hits 75C, which is pretty audible.
Set this way, my OC limits are either 815/1000 or 800/1100, take your pick. No actual performance difference between the two as I've amply tested. At least with the 4870(512), +25MHz core will yield roughly 200 points in Vantage GPU, and +100MHz memory a bit over 100pts also. To go beyond that, say to 825/1050, stable (my first criteria is completing 3DMark06 - Vantage is too forgiving), I need to really jack up the fan speed to a very obnoxious 60-65%.
Right now, my number one choices are the Accelero S1 rev.2. with a selection of fans, or the Scythe Musashi. Naturally, I'll be taking into account and attending to the VRM issues explained by Arctic at their site, as well as covered by PCGH's review of the coolers.
Arctic suggests sticking heatsinks on the VRM or buying separately their Voltage Regulator Heat Spreader Module. PCGH is a little more practical, and suggests removing the VRM plate from the stock cooler, and using it instead, in conjunction with either of the cooling solutions.
Either way, the Accelero with fan(s) would go for roughly $40-45 as would the Musashi. The Thermalright T-rad is way too expensive ($55 with no fans). I'm quoting prices from CoolerGuys.
Any thoughts?