Intel Desktop Board 21 B6 E1 E2 Specification Site

3 × 3.5mm audio jacks (Line-in, Line-out, Microphone). Legacy I/O: 1 × PS/2 Keyboard/Mouse combo port. Internal Connectors & Pinouts

"That is an acceptable loss," Vance said. "The specification of the board is expendable. The data is not." intel desktop board 21 b6 e1 e2 specification

Fully compatible with 2nd and 3rd Generation Intel Core i3, i5, and i7 processors (Sandy Bridge and Ivy Bridge architectures), as well as corresponding Intel Pentium and Celeron SKUs. 3 × 3

1x RJ-45 Gigabit Ethernet port (10/100/1000 Mb/s). 3 × 3.5mm audio jacks (Line-in

The Intel 945 chipset is notoriously picky. To avoid the "21 b6 e1 e2" lock-up, you must use: