Acer R720 Series manual Upgrading the CPU, CPU upgrading guidelines, To remove a CPU

74 3 System upgrade

Upgrading the CPU

The server supports two dual-core Intel Xeon processors 5000 sequence with 2 x 2 MB L2 cache and 1066 MHz or 1333 MHz FSB.

CPU upgrading guidelines

When installing CPUs the following must be observed:

•Use only Acer-qualified CPUs.

•Each CPU socket include a CPU and heat sink combination.

•When two CPUs are installed, both should have identical revision, core voltage, and speed values.

•When only one CPU is installed, it must be installed in CPU 1 socket.

To remove a CPU:

If you are replacing a CPU on the system, the heat sink must first be removed.

Important: Before removing a CPU from the mainboard, make sure to create a backup file of all important data.

1Observe the ESD precautions and pre-installation instructions described on page 35.

Warning! The heat sink becomes very hot when the system is on. NEVER touch the heat sink with any metal or with your hands.

2Remove the CPU air duct. Perform the instructions described in “To remove the CPU air duct” section on page 42.

3Locate the CPU you want to remove.