Abstract: An arrangement for supporting one or more circuit boards within an electronic equipment housing including a first rigidly supporting member and a second loosely supporting member. The second loosely supporting member includes a base plate and a biasing member. The biasing member is disposed between the housing and the base plate or between the base plate and slot members, or both, in such a manner that it biases the slot members towards the first rigidly supporting member. The slot members are thereby biased to loosely hold the loose ends of the circuit boards, and thus, the circuit boards, which are disposed between the first rigidly supporting member and the second loosely supporting member, are prevented from sliding out of the slot members, even when the loose ends of the circuit boards move relative to the housing due to shocks and vibration during transportation or handling.