How to Upgrade a Dell Precision 470 Dual CPU

Written by ty arthur
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How to Upgrade a Dell Precision 470 Dual CPU
The Dell Precision 470 supports a dual-CPU set-up. (cpu #4 image by Sergey Pesterev from

Normally, a computer can only process one stream of data at time, but a system with a dual central processing unit processes information more quickly. The Dell Precision 470 desktop computer comes standard with only a single CPU, but it has an additional CPU socket available for an after-market upgrade. If you want to give your Precision 470 a serious boost in performance, manually install a second CPU.

Skill level:
Moderately Challenging

Things you need

  • LGA 771-compatible CPU

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  1. 1

    Shut down the Dell Precision 470 computer's operating system and unplug the power adaptor cable. Disconnect any other cables attached to the ports on the front and back of the Precision 470.

  2. 2

    Put the Precision 470 case onto a flat work surface with the left access panel facing up. Grab the plastic release latch at the back of the case and push it toward the top of the computer.

  3. 3

    Lift the access panel up and to the right to remove it from the Precision 470's case. Unplug the cable connecting the black, plastic fan to the motherboard. The fan is located directly above the CPU at the centre of the motherboard, inside the plastic airflow shroud.

  4. 4

    Push in the two tabs located on both sides of the airflow shroud and pull the entire shroud and fan out of the Precision 470's case to reveal the main CPU and secondary LGA 771 CPU socket.

  5. 5

    Locate the secondary LGA 771 CPU socket to the left of the main CPU. The socket is a square, metal unit that contains a series of small holes to match the pins on the bottom of the new CPU. Lift up the locking clip on the side of the CPU socket and push the secondary processor onto the socket, then push down the locking clip.

  6. 6

    Place the new heat sink unit that came with the new CPU on top of the secondary CPU and push down the holding clips. Set the airflow shroud back over the CPU and reconnect the fan's cable. Set the cover back onto the Precision 470 and plug in its cables.

Tips and warnings

  • You can buy a secondary CPU for your Dell Precision 470 computer that is compatible with the socket LGA 771 technology at computer parts stores or online.
  • Like any other computer, you can damage the parts inside the Dell Precision 470 if you touch them before grounding yourself and release the static electricity in your body. Tap your fingers against the metal ports on the back of the Precision 470 to ground yourself.

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