Acer Network Device Altos R520 User's Manual | Page 71

Acer Network Card User's Manual - Network Device Altos R520.
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Upgrading the CPU

The server supports two dual-core or quad-core Intel Xeon processors 
5000 sequence with system bus speeds of 667 MHz, 1066 MHz or 1333 
MHz, and core frequencies starting at 1.6 GHz.

CPU upgrading guidelines

When installing CPUs the following rules must be observed:

Use only Acer-qualified CPUs. 

Each CPU socket include a CPU and heat sink. 

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

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

System is designed to provide up to 130 W of current per 
processor. Processors with higher current requirements are not 
supported. 

To install a CPU:

1

Observe the ESD precautions and pre-installation instructions 
described on page 39. 

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

2

Remove the CPU air duct. Perform the instructions described in “To 
remove the CPU air duct” section on page 45.

3

If installing a second CPU, remove the CPU air dam first. See 
“Removing the CPU air dam” section on page 47.

4

Locate the processor socket. 

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