Intel N450 AU80610004653AA User Manual

Product codes
AU80610004653AA
Page of 85
Datasheet
9
Introduction
1.2
Interfaces
1.2.1
System Memory Support
One channel of DDR2 memory (consists of 64-bit of data lines):
— Maximum of two SO-DIMMs in Raw Card-A or Raw Card-C format
Memory DDR2 data transfer rates of 667 MT/s
I/O Voltage of 1.8 V for DDR2
Non-ECC, unbuffered DDR2 SO-DIMMs only
512-Mb, 1-Gb and 2-Gb DDR2 DRAM technologies supported
Maximum of 2-GB memory capacity supported
— Maximum 1-GB memory capacity on one SO-DIMM or Memory Down
Memory organizations:
— Two SO-DIMMs
— One SO-DIMM only
— One SO-DIMM and One Memory Down (based on simulations only)
Up to 32 simultaneous open pages (assuming 4 Ranks of 8 Bank Devices)
Partial Writes to memory using Data Mask signals (DM)
On-Die Termination (ODT)
Intel® Fast Memory Access (Intel FMA)
— Just-in-Time Command Scheduling
— Command Overlap
— Out-of-Order Scheduling
— Opportunistic Writes
Support memory thermal management scheme to selectively manage reads and/or 
writes. Memory thermal management can be triggered by either on-die thermal 
sensor, or by preset limits. Management limits are determined by weighted sum of 
various commands that are scheduled on the memory interface.
1.2.2
Direct Media Interface Features
Compliant to Direct Media Interface (DMI)
Support 2 lanes in each direction, point-to-point DMI interface to the chipset
Raw bit-rate on the data pins of 2.5Gb/s, resulting in a real bandwidth per pair of 
250MB/s given the 8b/10b encoding used to transmit data across this interface. 
Does not account for packet overhead and link maintenance
Maximum theoretical bandwidth on interface of 500MB/s in each direction 
simultaneously, for an aggregate of 1GB/s for the interface