mITX-HSW-S - User Guide, Rev. 1.1
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3.5.
Processor Support
The mITX-HSW-S is designed to support the following processors which are connected to a discrete Intel® H81 or Q87
Chipset Platform Controller Hub on the motherboard.
Intel® Core i7, i5, i3 processors (FCLGA1150 Socket)
Sufficient cooling must be applied to the CPU in order to remove the effect defined as TDP (Thermal Design Power).
The sufficient cooling is also depending on the worst case maximum ambient operating temperature and the actual
worst case load of processor.
3.6.
System Memory Support
The mITX-HSW-S has two DDR3 SO-DIMM sockets. The sockets support the following memory features:
2x DDR3 SO-DIMM, 1.2 V
Up to 18 GB (2x 8 GB)
204-pin, 1333 / 1600 MT/s
SPD timing supported
The installed DDR3 SO-DIMM should support the Serial Presence Detect (SPD) data structure. This allows the BIOS to
read and configure the memory controller for optimal performance. If non-SPD memory is used, the BIOS will attempt
to configure the memory settings, but performance and reliability may be impacted, or the board may not be able to
boot totally.
3.6.1.
Memory Operating Frequencies
In all modes, the frequency of system memory is the lowest frequency of all the memory modules placed in the
system. Each memory module's frequency can be determined through the SPD registers on the memory modules.
The table below lists the resulting operating memory frequencies based on the combination of SO-DIMMs and
processor.
Table 4: Memory Operating Frequencies
SO-DIMM Type
Module Name
Memory Data
Transfer (MT/s)
Processor System
Bus Frequency
(MHz)
Resulting
Memory Clock
Frequency (MHz)
Peak Transfer
Rate (MB/s)
DDR3 1333
PC3-10600
1333
667
167
10667
DDR3 1600
PC3-12800
1600
800
200
12800
Memory modules have in general a much lower longevity than embedded motherboards, and therefore EOL of
modules can be expected several times during lifetime of the motherboard.
As a minimum it is recommend using Kontron memory modules for prototype system(s) in order to prove stability of
the system and as for reference.
For volume production you might request to test and qualify other types of RAM. In order to qualify RAM it is
recommend configuring 3 systems running RAM Stress Test program in heat chamber at 60° C for a minimum of 24
hours.
