Passively cooled Athlon X2?
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Passively cooled Athlon X2?
Is it possible? I'm thinking to get a Scythe Ninja and a good Antec case...
What say you?
What say you?
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Greetings & welcome to SPCR,
I have an X2 4200+ machine that is running passively -- with both cores running Folding@Home. The only fan near it is the S12 430 above it in the Evercase 4252, though there is a Scythe DF 92mm blowing on the HD. Currently, the CPU temp is just 48C!
Granted, the room temp is fairly cool right now, but I have an Scythe DF 120mm exhaust fan set to turn on above 50C or so -- the fastest it ever runs is ~900RPM
I have an X2 4200+ machine that is running passively -- with both cores running Folding@Home. The only fan near it is the S12 430 above it in the Evercase 4252, though there is a Scythe DF 92mm blowing on the HD. Currently, the CPU temp is just 48C!
Granted, the room temp is fairly cool right now, but I have an Scythe DF 120mm exhaust fan set to turn on above 50C or so -- the fastest it ever runs is ~900RPM
What are your voltages, clock speeds and case temperatures? What are the fan speeds of your exhaust fans
I had a single core Opteron with a passive Ninja and S12-430 and a 120mm case exhaust fan, both on 800-900 rpm. At 1.3V, 2300MHz, the typical CPU temperature was 42 degrees, maximum 48 degrees with Prime95.
Now I upgraded to an A64 4200+, same PC and settings otherwise, and the CPU temperature is ten degrees higher. I think I may have an unusually hot-running A64 (CPUID reports 105 degrees TDP), but still this is a cause for concern. Have I mounted my Ninja badly?
I had a single core Opteron with a passive Ninja and S12-430 and a 120mm case exhaust fan, both on 800-900 rpm. At 1.3V, 2300MHz, the typical CPU temperature was 42 degrees, maximum 48 degrees with Prime95.
Now I upgraded to an A64 4200+, same PC and settings otherwise, and the CPU temperature is ten degrees higher. I think I may have an unusually hot-running A64 (CPUID reports 105 degrees TDP), but still this is a cause for concern. Have I mounted my Ninja badly?
At the suggestion of a friend I was looking at Antec's Overture II on-line today. It looks like it would make a nice project as I'm getting tired of tower style cases but have concerns about cooling an X2 (5000+/5200+) passively in it? The 5000+ is available as a 65W part but the 5200+ is 89W (basically a rebranded FX-60). I don't think a Ninja would fit in this case so are there any lower profile units with close to comparable cooling? The AeroCool DP102 looks promising (almost 2" shorter than the Ninja).
Fair point, vitaminc
My ambient is 22-23 degrees C and relative humidity is in the 40-50% range.
After my posting above, I tried putting an Arctic Fan 12 (@ 1018 rpm) on the Scythe Ninja, and it dropped my CPU temperatures to 37 degrees idle, 44 degrees full load (two instances of Prime95 at 100% load). So maybe I do have the Scythe Ninja properly installed after all! CPU is on 1.25V and lightly overclocked to 2376 MHz.
I realise that this is a passive cooling thread. I think my experience shows that passive cooling the hottest X2 is possible (in particular if you undervolt it a little). But if you want to overclock it as well then some gentle active cooling is desirable, unless you are happy to have CPU temperatures over 55 degrees C (and probably more than that on a hot day).
There is a lot of variation between different X2 models, presumably to do with leakage currents and such. I think my 4200+ is one of the hottest with its 103/69W rating. See the sticky in the CPU subforum.
My ambient is 22-23 degrees C and relative humidity is in the 40-50% range.
After my posting above, I tried putting an Arctic Fan 12 (@ 1018 rpm) on the Scythe Ninja, and it dropped my CPU temperatures to 37 degrees idle, 44 degrees full load (two instances of Prime95 at 100% load). So maybe I do have the Scythe Ninja properly installed after all! CPU is on 1.25V and lightly overclocked to 2376 MHz.
I realise that this is a passive cooling thread. I think my experience shows that passive cooling the hottest X2 is possible (in particular if you undervolt it a little). But if you want to overclock it as well then some gentle active cooling is desirable, unless you are happy to have CPU temperatures over 55 degrees C (and probably more than that on a hot day).
There is a lot of variation between different X2 models, presumably to do with leakage currents and such. I think my 4200+ is one of the hottest with its 103/69W rating. See the sticky in the CPU subforum.
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fwiw I was in Alaska this summer and no one had air conditioning in their residence. It was rather humid and warm on a summer day. I survived because I'm used to much higher temps in the southeast US but it still surprises me that they allow their equipment to run in such high humidity conditions.vitaminc wrote:Please list your ambient room temperature when posting because your CPU temp only is not helpful at all. No one cares if you can run your PD805 OC to 4.0GHz passively when you live in Alaska and have the computer outdoors. :p
The thing you have to remember about Alaska is the majority live on the coast (sea air is humid) and a big portion live in a rain forest
All the museums, offices, restaurants were likely air conditioned and most of the cars were but houses and boats up there commonly put up with heat in the summer.