Processor Integrated I/O Module (Iio) - Intel S1400SP Technical Manual

Intel® Server Board S1400SP TPS
3.2.2.4.7 Demand Scrubbing for ECC Memory
Demand scrubbing is the ability to write corrected data back to the memory once a correctable
error is detected on a read transaction. This allows for correction of data in memory at detect,
and decrease the chances of a second error on the same address accumulating to cause a
multi-bit error (MBE) condition.
Demand Scrubbing is enabled/disabled (default is enabled) in the Memory Configuration screen
in Setup.
3.2.2.4.8 Patrol Scrubbing for ECC Memory
Patrol scrubs are intended to ensure that data with a correctable error does not remain in DRAM
long enough to stand a significant chance of further corruption to an uncorrectable stage.
3.2.3

Processor Integrated I/O Module (IIO)

The processor's integrated I/O module provides features traditionally supported through chipset
components. The integrated I/O module provides the following features:
PCI Express* Interfaces: The integrated I/O module incorporates the PCI Express*

interface and supports up to 24 lanes of PCI Express*. The key attribute of the PCI
Express* interface is Gen3 speeds at 8 GT/s (no 8b/10b encoding)
DMI2 Interface to the PCH: The platform requires an interface to the legacy

Southbridge (PCH) which provides basic, legacy functions required for the server
platform and operating systems. Since only one PCH is required and allowed for the
system, any sockets which do not connect to PCH would use this port as a standard x4
PCI Express* 2.0 interface.
Integrated IOAPIC: Provides support for PCI Express* devices implementing legacy

interrupt messages without interrupt sharing.
® QuickData Technology: Used for efficient, high bandwidth data movement

Intel
between two locations in memory or from memory to I/O.
Revision 2.1 Intel order number G64248-003
Functional Architecture
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