Annoying noise still present.
Already system restored to certain date and in safe mode.
Hardware failure likely the culprit.
Did replace keyboard already.
RAM check by exchanging to other slots or using one RAM.
Fans OK.
Video card OK coz I can still used it and managed to back-up my files since first reported failures due to hanging up in as much every 30 minutes. Now no more hang up encountered as of this time.
MOBO or CPU which of this two buggers!