CoolJag JAC84MC OAK-H CPU Cooler
Installation:
For most of the LGA775 heatsinks we've examined in the past, installation has been a breeze with the standard pushpin mounting. The CoolJag JAC84MC is still easy to install, it just takes a bit of extra time due to removing the motherboard. Once the motherboard is removed, if located inside of a chassis, place the retention frame on the backside of the PCB. When positioning the retention plate, align the retention holes with the standard Socket T LGA775 holes on the motherboard. With the thermal paste applied to the heatsink base, place the heatsink on top of the Intel processor. Next, with the pre-inserted screws, screw all four of them into the retention plate on the underside of the motherboard. Take caution to prevent damaging the processor and/or motherboard. Finally, connect the 4-pin fan wire to the CPU fan header on the motherboard. When we installed the CoolJag JAC84MC on a Tyan Tomcat i915 S5120 motherboard, we encountered no installation problems.
Performance:
The CoolJag CPU cooler was tested on the following system:
| Hardware Components | |
| Processor: | Intel Pentium 4 530 (3.0GHz) @ 3.15GHz |
| Motherboard: | Tyan Tomcat i915 S5120 |
| Memory: | 512MB Mushkin PC4000 |
| Graphics Card: | Gigabyte 6600GT |
| Hard Drives: | Hitachi 80GB SATA 7200RPM |
| Optical Drives: | Lite-On DVD-ROM |
| Cooling: | 2 x 120mm fans |
| Case: | NZXT Nemesis Elite |
| Power Supply: | A-Top XBlade |
| Software Components | |
| Operating System: | FedoraCore3 |
| Linux Kernel: | 2.6.10-1.770 |
CPUBurn-in v1.00 was used to place a load on the Intel Pentium 4 530 during our testing today. Idle and load testing each lasted for 30 minutes. Ambient temperature during testing was closely maintained at 20°C with the thermal paste used on both heatsinks being Arctic Silver Ceramique. The comparison heatsink used was a stock Intel HSF. LM_Sensors 2.8.8 were used with GKrellM 2.2.4 for monitoring CPU temperatures.
Idle | Load | |
| JAC84MC: | 40.0 | 49.0 |
| Intel Stock HSF: | 43.0 | 53.0 |
°C | ||
Conclusion:
With the number of Socket T heatsinks on the market, it can be fairly difficult to find a heatsink that meets personal demands. Although the CoolJag heatsink does look rather basic and doesn't offer any unique features, its performance was superior to that of the Intel stock HSF. Some of the other fine points of the heatsink include the quick and easy installation (although it requires the removal of the motherboard), low profile design, and low noise output. One area CoolJag could improve upon with the JAC84MC is the packaging and a finer finish on the heatsink base.
Pros:
· Good performance
· Low noise output
· Copper fins & base
· Easy installation
Cons:
· Packaging
· Finish on base could be improved
· Requires motherboard removal
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