Basic pump made a huge noise, however in the Bios can reduce the speed of the pump, from 90% means no longer, if you can not choose 90% as is the case with my motherboard 75% is correct it loses only 5 degrees. Then in the BIOS must also set the speed of the fan positioned on the radiator, otherwise it remains 100% all the time and made a ruckus hell to rest. For those who have an MSI P67AC45 I will explain how:
-Go In bios
-ConfigurationOnly -> Advanced -> Control Hardware:
-target Of self regulated processor fan 40 ° C
-Speed Minimum CPU FAN: 50%
In bad weather you do not exceed 40 ° C the fan remains at 50% very silent.
Normally under 1 Fan system matches your pump you set to 75% (or 90% if your motherboard allows course), to be sure it is your pump, it runs 100% has 4300 RPM.
That is unfortunate, but without all its settings the system is super noisy so I remove a star, so check if your motherboard offers all its settings otherwise you will be terribly disappointed noise at rest.
Another remark is very imposing radiator in my case a radiator Antec SOLO exceed a few millimeters so I can close the screws from the bottom, that's a shame.