Not very loud at all, surprisingly.
She has morphed extensively since those pics were posted...The HDD has moved, roof vents were opened up to 120mm each, a 120mm fan has been added on the case floor and all the fans have been replaced with Zalman low-profile, 9-bladed units. With the fans running on 5v the loudest sound is the woosh of air through the roof vents and the speed variation of the HS fan.
She has morphed extensively since those pics were posted...The HDD has moved, roof vents were opened up to 120mm each, a 120mm fan has been added on the case floor and all the fans have been replaced with Zalman low-profile, 9-bladed units. With the fans running on 5v the loudest sound is the woosh of air through the roof vents and the speed variation of the HS fan.