[alexwai]

Just run a test using the previously setting (Prime 95 1 hour), Room temp is still on 30~ C. I put the thermal probe into the T line, the water temp is 36C. WTF, too high, right! As my understanding that the water temp will not be that high in similar setup. What does it imply? Well, I have 2 conclusion.

1) Will the pump putting too much heat into the water?
2) Just like Jabo said, the radiator is not up to the job.

I am not too sure these conclusion are right or not. I think it is a better idea to provide as much as information so that all of your expects can help me to figure it out what is going on?

Re Jabo

I place my radiator on the top of my case. Certainly, helped by my friend, I opened 2 x 12cm fans holes using the jigsaw. What fans i am using is 2 Delta EFB1212SHE-F00 (during the test, the fans is at 12V) which can provide 141.96CFM, 13.2mmH2O . IMO, they are quite decent and able to do the job well. I put them in between the radiator and the top of the case so that the cooler air can be pushed from the area outside the case through the radiator , then to the case.

That is all I can tell ATM.