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2807940 uATX Motherboard
Page 25
Figure 2-10: SATA Drive Connectors
2.5.10 Intel
®
ICH9DO Serial Peripheral Interface (SPI) BIOS
The SPI is connected to an SPI BIOS chip. A licensed copy of AMI BIOS is preinstalled on
the SPI BIOS chip.
2.5.11 Intel
®
ICH9DO USB Controller
2.5.11.1 Intel
®
ICH9DO USB Controller Overview
The ICH9DO comprises six full/low speed USB controllers that support the standard
Universal Host Controller Interface (UHCI) Revision 1.1. Each controller supports two
USB devices ensuring up to twelve USB 1.1 devices can be connected to the 2807940.
The ICH9DO also comprises two high-speed Enhanced Host Controller Interface (EHCI)
controllers. Each EHCI controller supports six USB 2.0 devices ensuring twelve USB 2.0
devices can be connected to the 2807940. EHCI controllers facilitate data transfer speeds
of 480 Mbps
Port routing logic on the ICH9DO determines whether a UHCI or an EHCI controller
controls a USB port.
Summary of Contents for 2807940
Page 1: ...x x 2807940 User s Manual Micro ATX Motherboard with LGA 775 Socket Version 1 0 ...
Page 17: ...2807940 uATX Motherboard Page 1 1 Introduction Chapter 1 ...
Page 24: ...2807940 uATX Motherboard Page 8 2 Detailed Specifications Chapter 2 ...
Page 55: ...2807940 uATX Motherboard Page 39 3 Unpacking Chapter 3 ...
Page 59: ...2807940 uATX Motherboard Page 43 4 Connector Pinouts Chapter 4 ...
Page 88: ...2807940 uATX Motherboard Page 72 5 Installation Chapter 5 ...
Page 120: ...2807940 uATX Motherboard Page 104 6 Intel AMT Configuration Chapter 8 ...
Page 130: ...2807940 uATX Motherboard Page 114 A Terminology Appendix A ...
Page 135: ...2807940 uATX Motherboard Page 119 B DIO Interface Appendix B ...
Page 138: ...2807940 uATX Motherboard Page 122 C Watchdog Timer Appendix C ...
Page 141: ...2807940 uATX Motherboard Page 125 D Address Mapping Appendix D ...
Page 144: ...2807940 uATX Motherboard Page 128 E Compatibility Appendix E ...
Page 147: ...2807940 uATX Motherboard Page 131 F Intel Matrix Storage Manager Appendix F ...
Page 161: ...2807940 uATX Motherboard Page 145 G Hazardous Materials Disclosure Appendix G ...