回複：one more thing...

I think in the fan is controlled by motherboard in 4700. Depending on the temp, it should adjust the fan speed.

If your fan does not speed up when it is hot, I am worried that your motherboard has a problem.

Adding a new case fan close to hard drives and connecting directly to a 4 pin plug (the one powers hard drive) may help.

所有跟帖： 

• Thanks very much for the insightful comments -halfdummy- ♂ (0 bytes) () 08/22/2010 postreply 18:03:10

• 回複：You are welcome. I used to have a 4600. -NaCl- ♂ (109 bytes) () 08/22/2010 postreply 18:28:55

• I found the reason: the case fan is not working well -halfdummy- ♂ (15 bytes) () 08/24/2010 postreply 04:21:13