Dell PowerConnect 2508

Overview
"2976182503" and a date code of 0251 is silkscreened on one PC2508's main board.
 * The internal power supply is from Delta Electronics. It outputs 12VDC (4.5A).
 * There are two fans used - the side fan is a Delta Electronics AFB0412HA (12VDC, 0.14A, 40 mm x 40 mm x 10 mm ).

3x large BGA chips w/ large heatsinks, Altima chipset?