SD MAXX Power Supply Replacement

Power Supply Replacement

Caution – Use standard electrical safety and ESD procedures at all times.

Removal

• Remove the 3 screws that hold the lid along the top edge of the rear panel.

• Tilt the rear end of the lid up slightly, and then pull towards you to remove it.

• Remove the front panel of the server by unscrewing the 2 thumbscrews. The panel has guide pins that locate the panel to the chassis. Pull the panel straight back until it is free.

• Disconnect the power cables from the hard drives.

• There is a bracket that runs from the back panel of the chassis to the hard drive cage that holds the RAID controller in place. Towards the front on that bracket there are 2 screws that hold the RAID bracket and the Hard Drive fan bracket.

• Remove the 2 screws that hold the Hard Drive fan bracket. Lift out the fan assembly to gain access to the power connector for the CD-ROM.

• Locate the wide ribbon cable that connects the audio and video boards together.

• Carefully remove the ribbon cable from ONLY the audio board side, and then fold the cable out of the way with it still attached to the video board. When removing the cable from the board, be very careful not to damage the cable by yanking the ribbon in an awkward direction. A pick tool is the safest way to unseat the connector.

• Remove all other cables attached to the audio board.

• Remove the 12 screws that hold the audio board to the rear panel and the 1 screw on the front section of the audio board.

• With the screws removed from the board, carefully start pulling the board out of the server. It will still be attached to the genlock cable on the bottom side of the board. Disconnect the genlock cable to fully remove the board from the server.

• Unscrew the 2 screws that hold the Chassis fan to the side of the chassis next to the front of the power supply.

• There are 2 Keps nuts that the screws are threaded into and they are NOT captive to anything, so they will fall off when completely unscrewed. Retain these nuts for later re-installment. Set the fan aside. Note the orientation of the fan for re-installation.

• Cut the wire ties that hold the power supply looms to brackets and others wire looms.

• Remove the 2 screws that hold the power supply to the rear panel.

• The front of the power supply has a bracket that has a slot to fit the key in the chassis.

• Disconnect the 24 pin and 8 pin power connectors that go the motherboard. It may be necessary to partially remove the power supply to gain better access to the locking pins of the power connectors.

• Push the power supply forward to free the supply. Carefully remove power supply from the server. DO NOT pull on the cables with force. Watch for cables that ARE disconnected, but may be caught in brackets, other wires, or motherboard components.

Installation

• Verify that the new power supply has the front bracket installed; swap it over from the old supply if necessary.

• Connect the 24 pin and 8 pin power connectors to the mother board.

• Set the new power supply in the chassis so that it lays flat in the bottom of the chassis. Push the supply forward, then slide it back to its fully seated position, this should seat the front bracket onto the key.

• Install the 2 screws on the rear panel to affix the power supply.

•  Route the CD-ROM power cable over to the CD-ROM and plug in the connector.

• Route the Hard Drive power cables over the top of the Hard Drive cage and attach the connectors to the drives.

• Bundle the looms together and apply zip ties.

• Install the chassis fan back into the machine, maintaining its original orientation. The fan grill gets sandwiched between the fan and chassis, and when installed correctly the grill will slightly protrude from the chassis.

• Connect the genlock cable coming from the rear panel of the chassis to the bottom side of the audio board.

• Seat the board into the server.

• Install the 12 screws on the rear panel, and the 1 screw near the front of the board.

• Insert all cables onto the audio board.

• Place the Hard drive fan bracket assembly back into place.

• Insert the 2 screws to hold the bracket, but DO NOT tighten yet.

• With the screws in place, position the RAID bracket so that the PCI-riser retainers are touching the side of the PCI-riser, and that the bottom “feet” are touching the topside of the riser where it is seated into the motherboard. The retaining bracket does not have to exert pressure on the riser, they just have to barely touch the riser to be effective.

• While holding the RAID bracket in place, tighten the 2 screws that hold it to the chassis.

• Insert the ribbon cable onto the audio board.

• Install Front panel back onto the server.

• Place the lid back on the server and install the 3 screws.