Acer Altos R910 Series - Manual (Page 72)

3 System upgrade 62
Processor
The server supports up to four processors, the following models are
supported:
• dual-core Intel Xeon processor 7000 sequence
• 64-bit Intel Xeon processor MP with 1 MB L2 cache
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.
• CPUs should have identical FSB, cache, and speed.
• CPUs must be installed in sequential order beginning with the
CPU_1 socket.
• If you are installing an additional CPU, read the information on
“Processor core VRM requirements” on page 66 to determine if
you need to add any VRMs and follow the instructions listed on
the requirements.
• If you are removing a CPU, but not installing replacement
processor, read the information on “Processor core VRM
requirements” on page 66 to determine if you need to remove any
VRMs and follow the instructions listed on the requirements.
Removing a CPU
The system may have from one to four CPUs installed on the
mainboard. If you are replacing a CPU on the system, the heat sink
must be removed.
Important: Before removing a CPU from the mainboard, make
sure to create a backup file of all important data.
1 Observe the ESD precautions and pre-installation instructions
described on page 33.
Warning! The heat sink becomes very hot when the system
is on. NEVER touch the heat sink with any metal or with
your hands.