Hi,
I have a P55 chipset mobo, that makes shrieking sounds in FreeBSD 8.0 *only* (edit: also tried STABLE).
It doesn't happen in Windows, nor in 7.2.
The shrieking starts during the boot process at these lines:
It doesn't matter if powerd is running or not, nor does it matter what the minimum frequency is (i tried them all). The shrieking sound only stops briefly when the system is in full load. Also it varies with mouse movement.
I'm pretty confident that the sound comes from the coils that are part of the CPU voltage regulator, situated near the CPU. Nowadays they are inside little black plastic boxes. I remember that some crappy older mobos had this issue when the coils were exposed.
Any ideas? I've tried everything, including adjusting voltages in BIOS. The mobo is a MSI P55M-GD45, and CPU is Intel Core i5 750.
Again, the issue not present in Windows, or in 7.2 :\
I have a P55 chipset mobo, that makes shrieking sounds in FreeBSD 8.0 *only* (edit: also tried STABLE).
It doesn't happen in Windows, nor in 7.2.
The shrieking starts during the boot process at these lines:
Code:
SMP: AP CPU #x Launched!
It doesn't matter if powerd is running or not, nor does it matter what the minimum frequency is (i tried them all). The shrieking sound only stops briefly when the system is in full load. Also it varies with mouse movement.
I'm pretty confident that the sound comes from the coils that are part of the CPU voltage regulator, situated near the CPU. Nowadays they are inside little black plastic boxes. I remember that some crappy older mobos had this issue when the coils were exposed.
Any ideas? I've tried everything, including adjusting voltages in BIOS. The mobo is a MSI P55M-GD45, and CPU is Intel Core i5 750.
Again, the issue not present in Windows, or in 7.2 :\