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4 system memory support, System memory support – Kontron KTQM87-mITX User Manual

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KTD-N0886-A

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System Specification


KTQM87/mITX Users Guide

System Memory support

3.4

The KTQM87/mITX has two DDR3 UDIMM sockets. The sockets support the following memory features:

• 2x DDR3 1.5V/1.35V UDIMM 240-pin

• Dual-channel with 1 UDIMM per channel
• From 1GB and up to 2x 8GB.

Note: If using 32bit OS then less than 4GB in displayed in System Properties

(Shared Video Memory/PCI resources is subtracted)

• Single/dual rank unbuffered 1333/1600MT/s (PC3-10600/PC3-12800)

• SPD timings supported
• ECC supported

The installed DDR3 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.


Memory Operating Frequencies

Regardless of the DIMM type used, the memory frequency will either be equal to or less than the processor

system bus frequency. For example, if DDR3 1600 memory is used with a 1333 MHz system bus frequency
processor, the memory clock will operate at 167 MHz. The table below lists the resulting operating memory

frequencies based on the combination of DIMMs and processor.

DIMM Type

Module

name

Memory Data

transfers

[MT/s]

Processor system

bus frequency

[MHz]

Resulting memory

clock frequency

[MHz]

Peak

transfer rate

[MB/s]

DDR3 1066

PC3-8500

1066

1066 / 1333

133

8533

DDR3 1333

PC3-10600

1333

1333 / 1600

167

10666

DDR3 1600

PC3-12800

1600

1333

167

10666

DDR3 1600

PC3-12800

1600

1600

200

12800


Notes: Kontron offers the following memory modules:

1GB DDR3 1333 PC3-10600, P/N: 1031-9872

2GB DDR3 1333 PC3-10600, P/N: 1054-3702
4GB DDR3 1333 PC3-10600, P/N: 1054-3703

8GB DDR3 1333 PC3-10600, P/N: 1054-3704
1GB DDR3 1600 PC3-12800, P/N: 1054-3706

2GB DDR3 1600 PC3-12800, P/N: 1054-3707

4GB DDR3 1600 PC3-12800, P/N: 1054-3708
8GB DDR3 1600 PC3-12800, P/N: 1052-5601


Memory modules have in general a much lower longevity than embedded motherboards, and therefor EOL

of modules can be expected several times during lifetime of the motherboard. Kontron guarantees that the

above P/N will be maintained so that EOL module will be replaced by other similar type of qualified module.

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

⁰C for a

minimum of 24 hours.

This manual is related to the following products: