OK, I try again:
1. G6YK3430013A SA H14752-101
2. Memory Kingston KVR16LS11/4 in both slots, Intel 525 SSD Series mSATA - 180GB, Intel Dual Band Wireless-AC 7260 (disabled, use Ethernet)
3. BIOS set to factory Default
4. Typical fan speed 3161 RPM
5. Positioned horizontal on a hard table; if I lift it up in my hand or mount it on the wall the noise is much worse but of the same nature; if I place a 2 kilogram heavy smoothing iron on top of it the noise is reduced. It is in the Intel cabinet that the D54250WYK came with.
6. Fan noise begins immediately upon boot up (and is stronger during POST - of cause).
7. The noise is constantly the same all the time; I have earlier described the sound as a circular saw, but it is hard to describe sounds so I attache a sound sample again; then you can listen to it or use a spectrum
analyzer.
Thanks