Kontron KTHM76-mITX - Manual (Page 18)

KTQM77 – KTHM76 Users Guide
KTD-N0850-F Page 18
2.4 System Memory support
The KTQM77 has two DDR3 SODIMM sockets. The sockets support the following memory features:
• 1.5V (only) 204-pin DDR3 SODIMM with gold-plated contacts
• Single/dual rank unbuffered DDR3 1333/1600MT/s (PC3-10600/PC3-12800)
• From 256MB and up to 2x 8GB. (up to 2x4GB tested)
Notes: Less than 4GB displayed in System Properties using 32bit OS
(Shared Video Memory/PCI resources is subtracted)
• SPD timings supported
• ECC not supported (PGA processors do not support ECC)
The installed DDR3 SODIMM 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 SODIMM 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 666 MHz. The table below lists the resulting
operating memory frequencies based on the combination of SODIMMs and processors.
DIMM Type Module name
Memory Data
transfers
Processor
system bus
frequency
Resulting memory
clock frequency
Peak transfer rate
Mill/s MHz MHz MB/s
DDR3 1333 PC3-10600 1333 1333 or more 666 10666
DDR3 1600 PC3-12800 1600 1333 max 666 10666
DDR3 1600 PC3-12800 1600 1600 800 12800
Notes: Kontron offers the following DDR3 204P SODIMM:
PN 1054-3780 1GB, 1333MHZ, PC3-10600
PN 1054-3776 1GB, 1600MHZ, PC3-12800
PN 1054-3781 2GB, 1333MHZ, PC3-10600
PN 1051-5403 2GB, 1600MHZ, PC3-12800
PN 1054-3782 4GB, 1333MHZ, PC3-10600
PN 1051-9057 4GB, 1600MHZ, PC3-12800
PN 1054-3783 8GB, 1333MHZ, PC3-10600
PN 1054-3775 8GB, 1600MHZ, PC3-12800
System Specification