The stock cooler that came with that processor (released about 2010) may well be a THREE-pin fan. The only way to control the speed of such a fan is if the mobo fan header (CPU_FAN in this case, we presume) is set to use the older Voltage Control Mode (aka DC Mode). If the header is using the new PWM Mode, that fan will always run full speed.
step 1 = enter your BIOS at start-up, step 2 = find the voltage control section in your BIOS program, step 3 = Change that found voltage setting to "DC Mode" instead of any other selections/modes in the list. step 4 = SAVE Bios and exit/restart.Thanks for the response.
Can you tell me it idiot form please?
The colour sequence you cite is the normal colours for a true 4-pin CPU cooler fan from AMD. So my 3-pin suspicion is wrong. Your mobo CPU_FAN header should be able to control its speed. Tell us what maker and exact model number of mobo you have. Also, where on that mobo is this fan plugged in?
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