We use the 1065 chassis of the controller is inserted into a function of the module, some of the slots on the boot scan hardware drive when the blue screen, and we have some of the three cabinets appear blue screen slot is not the same as the. When using the 8821 controller will not appear blue screen phenomenon. The external module bus is connected with the PLX8311 bridge chip, and the chip in the chassis is the same company. Why is there such a problem?