Dell Optiplex 745 Ultra Small Form Factor RAM Replacement

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In this tutorial we will discuss how to remove and re-install memory into a Dell Optiplex 745 Ultra Small Form Factor. The Dell Optiplex 745 Ultra Small Form Factor encases two DIMM memory slots that can both house a 2GB memory module, allowing a total maximum of 4GB of memory in this machine.

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crwdns2931653:01crwdne2931653:0 Side Panel

Dell Optiplex 745 Ultra Small Form Factor RAM Replacement, Side Panel: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Make sure to shut down the computer! Go to the start menu and click shutdown from the power options first
Ensure all cables, speakers and other devices are unplugged and turned off before opening the computer case.

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Dell Optiplex 745 Ultra Small Form Factor RAM Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Lay the computer on its side; you will see a blue knob.
Turn said knob 90 degrees counter clockwise.

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Dell Optiplex 745 Ultra Small Form Factor RAM Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

While the knob is still turned, slide the panel case forward about 1/2 inch, and then lift the panel off the computer.

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crwdns2931653:04crwdne2931653:0 Hard Drive

Dell Optiplex 745 Ultra Small Form Factor RAM Replacement, Hard Drive: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Dell Optiplex 745 Ultra Small Form Factor RAM Replacement, Hard Drive: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

Ground yourself to avoid static from damaging any components. Either use a wrist strap and antistatic mat, or touch the metal computer case every few minutes.
Find the power and data cables connected to the hard drive, press down on the metal tab and carefully remove them.

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Dell Optiplex 745 Ultra Small Form Factor RAM Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

Dell Optiplex 745 Ultra Small Form Factor RAM Replacement: crwdns2935265:05crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

Locate the blue tabs shown on the left and right of the hard disk drive
Squeeze both tabs and slide the hard disk drive towards you, then lift the drive out of the cage.

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Dell Optiplex 745 Ultra Small Form Factor RAM Replacement, RAM: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Press down on the two white tabs on either side of the memory module; the RAM will pop out.
Be sure you are grounded to avoid electrostatic discharge, and place your memory modules in an anti-static bag.
Make sure the notch in the RAM lines up with the notch in the slot. It should enter the slot with minimal force. If it does not enter the slot, check that you have the RAM lined up properly.