Hi, I was passed on an older PC built round an Intel D865PERL m/b. In order to quieten it down, I fitted an older relatively quiet power supply and an Arctic Freezer 4 CPU cooler but I've been disappointed. Reading the m/b manual closely, there is no speed control on the m/b for the cpu fan, but there is for the two case fan connections. This means the CPU fan runs at full speed even when the PC is in power saving mode. As far as I can make out the reason there is no speed control on the m/b is that the stock cooler has a temperature sensitive fan.
What is the best course of action now? Is there a temperature sensitive fan/cooler I could use, should I re-fit the original cooler or can I safely connect the Freezer 4 fan to the case fan connector?
FWIW the CPU is a 2800MHz Pentium 4 with the Northwood core
The case fan controller claims to be thermal. The BIOS even gives you the option of setting the minimum speed to 0 or 350rpm. I'll grab myself a copy of speedfan to monitor the temperature and then give it a go.
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