What you need
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Lay the Dell Optiplex GX260 down on a clean flat surface with the rear towards you.
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Push the oval shaped buttons located on the top and bottom of the PC simultaneously and lift the case straight up.
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Disconnect the ATX power cable to the motherboard.
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Disconnect the P4 12V(4x2) power cable from the motherboard.
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With the motherboard out of the tray, let your soldering gear warm up and get a desoldering braid.
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Desoldering can damage motherboards, so first practice on a board you don't need. Use a 40-50W soldering iron with a chisel tip and 0.080" wide desoldering braid. Also helpful are rosin flux and 60/40 tin/lead solder, in case all the solder doesn't come out. Wiggle desoldered leads to verify they're free, and never pull on any that aren't.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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