6.
Reconnect the power cord and any external devices, then turn on the computer.
NOTE:
Ensure at least 10.2 centimeters (4 inches) of space on all sides of the computer
remains clear and free of obstructions.
7.
Lock any security devices that were disengaged when the access panel was removed.
Installing additional memory
The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3-
SDRAM) dual inline memory modules (DIMMs).
DIMMs
The memory sockets on the system board can be populated with up to two industry-standard DIMMs.
These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum
memory support, you can populate the system board with up to 16-GB of memory configured in a
high-performing dual channel mode.
DDR3-SDRAM DIMMs
For proper system operation, the DDR3-SDRAM DIMMs must be:
●
industry-standard 240-pin
●
unbuffered non-ECC PC3-12800 DDR3-1600 MHz-compliant
●
1.35 volt or 1.5 volt DDR3/DDR3L-SDRAM DIMMs
The DDR3-SDRAM DIMMs must also:
●
support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)
●
contain the mandatory JEDEC SPD information
In addition, the computer supports:
●
512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies
●
single-sided and double-sided DIMMs
●
DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not
supported
NOTE:
The system will not operate properly if you install unsupported DIMMs.
Populating DIMM sockets
There are two DIMM sockets on the system board, with one socket per channel. The sockets are
labeled DIMM1 and DIMM2. Socket DIMM1 operates in memory channel B. Socket DIMM2 operates
in memory channel A.
The system will automatically operate in single channel mode, dual channel mode, or flex mode,
depending on how the DIMMs are installed.
NOTE:
Single channel and unbalanced dual channel memory configurations will result in inferior
graphics performance.
6
Chapter 2 Hardware upgrades
