In preparing a computer for number-crunching, I decided to duct room air through a radiator into the chassis and through a respected processor air cooler. Usually, the radiator would be dormant, but when the most demanding operations are to be performed, chilled water from an ice bath could flow through it.
I began testing the system a couple hours ago and it is working like a charm. From the chassis temperature sensors and from the quad-core temperature sensors, all temperatures drop by at least 5 degrees C.
Motherboard: Intel DZ77GA-70K
Processor: I7-2700K
4.2 GHz with +20mV
Memory @ 1600
Air Cooler: Cooler Master Hyper 212 EVO
Case Fan: Delta AFC1212D-PWM
Fan/Temp Controller: Scythe SCKMPN-3000
Radiators. 2 each: Koolance HX-CU420V
In ice bath
Chassis rear
Water Pump: Danger Den DDCPX1
Nozzle Body: Koolance ADT-XUTX4
Reservior: Koolance TNK-80-V10
Clear Tubing: Koolance HOS-10CL
Ice Chest: 6-pack size, approximately
Software:
Core Temp
Prime 95
10 pounds of ice ($2) lasts for 2 hours.
One of the number-crunching programs (related to predicting flood hazard zones) uses all cores & all threads, and runs continuously for 2 to 4 hours. For this program I will purchase a bag or two of ice, and will use the ice bath to lower the temperatures. For all other operations I can run normally on ambient air cooling. I love it, and expect that I can squeeze more speed from the processor by using this tactic.
I began testing the system a couple hours ago and it is working like a charm. From the chassis temperature sensors and from the quad-core temperature sensors, all temperatures drop by at least 5 degrees C.
Motherboard: Intel DZ77GA-70K
Processor: I7-2700K
4.2 GHz with +20mV
Memory @ 1600
Air Cooler: Cooler Master Hyper 212 EVO
Case Fan: Delta AFC1212D-PWM
Fan/Temp Controller: Scythe SCKMPN-3000
Radiators. 2 each: Koolance HX-CU420V
In ice bath
Chassis rear
Water Pump: Danger Den DDCPX1
Nozzle Body: Koolance ADT-XUTX4
Reservior: Koolance TNK-80-V10
Clear Tubing: Koolance HOS-10CL
Ice Chest: 6-pack size, approximately
Software:
Core Temp
Prime 95
10 pounds of ice ($2) lasts for 2 hours.
One of the number-crunching programs (related to predicting flood hazard zones) uses all cores & all threads, and runs continuously for 2 to 4 hours. For this program I will purchase a bag or two of ice, and will use the ice bath to lower the temperatures. For all other operations I can run normally on ambient air cooling. I love it, and expect that I can squeeze more speed from the processor by using this tactic.
Put antifreeze in your lines, and drop a bag of dry ice in the cooler 
