Has anyone with an 840 added 2x120mm fans to the outside of the HD bays and did it help GPU temps ?
I've read a few reviews of the 840, and 2 things reviewers have consistently commented on is the negative airflow (1x230mm intake, 2x230mm outtakes) not being optimal for sli setups, and cooling not getting to all components on the motherboard due to the 230mm top outake nearest to the HD cage sucking fresh air out (from the bottom from 230mm intake) prematurely before it's got a chance to circulate. Other reviews have mentioned the sheer distance between the single 230mm intake makes direct gpu cooling difficult.
Where I am coming from is I am thinking of changing to this 840 all the same as I like the look of it. Would the following address the issues some reviewers have found and turn this into a positive airflow case :
1. Add 2x120mm Scythe Gentle Typhoon 1450rpm fans to the outside of the front HD cages to help cool GPU's more directly, and possibly a 3rd to the bottom intake. I wonder would these intakes on the HD cages possibly cause turbulence given their proximity to the front 230mm intake ? I'd probably use a fan controller to drop the speeds when not gaming. The stock front intake would run off the motherboard case fan header.
2. Reverse Corsair H50 (currently outtake with 2 apaches in push/pull using PWM) so it intakes.
3. Use gpu duct (with another Scythe Gentle Typhooon) so it exhaust the hot air from the gpu sideways, so it doesn't get sucked back in by H50.
4. Outake would still be handled by top 230mm fans. And both running off motherboard case fan headers.
I've read a few reviews of the 840, and 2 things reviewers have consistently commented on is the negative airflow (1x230mm intake, 2x230mm outtakes) not being optimal for sli setups, and cooling not getting to all components on the motherboard due to the 230mm top outake nearest to the HD cage sucking fresh air out (from the bottom from 230mm intake) prematurely before it's got a chance to circulate. Other reviews have mentioned the sheer distance between the single 230mm intake makes direct gpu cooling difficult.
Where I am coming from is I am thinking of changing to this 840 all the same as I like the look of it. Would the following address the issues some reviewers have found and turn this into a positive airflow case :
1. Add 2x120mm Scythe Gentle Typhoon 1450rpm fans to the outside of the front HD cages to help cool GPU's more directly, and possibly a 3rd to the bottom intake. I wonder would these intakes on the HD cages possibly cause turbulence given their proximity to the front 230mm intake ? I'd probably use a fan controller to drop the speeds when not gaming. The stock front intake would run off the motherboard case fan header.
2. Reverse Corsair H50 (currently outtake with 2 apaches in push/pull using PWM) so it intakes.
3. Use gpu duct (with another Scythe Gentle Typhooon) so it exhaust the hot air from the gpu sideways, so it doesn't get sucked back in by H50.
4. Outake would still be handled by top 230mm fans. And both running off motherboard case fan headers.
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