FW82801EB Intel, FW82801EB Datasheet - Page 46

• Manufacturer Part Number: FW82801EB
• Manufacturer: Intel

Specifications of FW82801EB

• Lead Free Status / RoHS Status: Not Compliant

Introduction
46
Manageability
The ICH5 integrates several functions designed to manage the system and lower the total cost of
ownership (TCO) of the system. These system management functions are designed to report errors,
diagnose the system, and recover from system lockups without the aid of an external
microcontroller.
•
•
•
•
•
•
TCO Timer. The ICH5’s integrated programmable TCO timer is used to detect system locks.
The first expiration of the timer generates an SMI# that the system can use to recover from a
software lock. The second expiration of the timer causes a system reset to recover from a
hardware lock.
Processor Present Indicator. The ICH5 looks for the processor to fetch the first instruction
after reset. If the processor does not fetch the first instruction, the ICH5 can reboot the system.
ECC Error Reporting. When detecting an ECC error, the host controller has the ability to
send one of several messages to the ICH5. The host controller can instruct the ICH5 to
generate either an SMI#, NMI, SERR#, or TCO interrupt.
Function Disable. The ICH5 provides the ability to disable the following functions: AC ’97
Modem, AC ’97 Audio, IDE, SATA, LAN, USB, UHCI, EHCI, or SMBus. Once disabled,
these functions no longer decode I/O, memory, or PCI configuration space. Also, no interrupts
or power management events are generated from the disable functions.
Intruder Detect. The ICH5 provides an input signal (INTRUDER#) that can be attached to a
switch that is activated by the system case being opened. The ICH5 can be programmed to
generate an SMI# or TCO interrupt due to an active INTRUDER# signal.
SMBus 2.0. The ICH5 integrates an SMBus controller that provides an interface to manage
peripherals (e.g., serial presence detection (SPD) and thermal sensors) with host notify
capabilities.
Intel
®
82801EB ICH5 / 82801ER ICH5R Datasheet