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SE7221BK1-E Technical Product Specification
Revision 1.3
iv
Table of contents
1. Introduction ..........................................................................................................................1
2. Server Board Overview........................................................................................................2
2.1 SE7221BK1-E Feature Set......................................................................................2
3. Functional Architecture.......................................................................................................5
3.1 Processor Subsystem..............................................................................................5
3.1.1 Processor VRD........................................................................................................5
3.1.2 Reset Configuration Logic .......................................................................................5
3.1.3 Processor Module Presence Detection ...................................................................5
3.1.4 Processor Support...................................................................................................5
3.1.5 Interrupts and APIC .................................................................................................6
3.2 Memory Subsystem .................................................................................................6
4. The Intel
®
E7221 Chipset .....................................................................................................9
4.1.1 GMCH Memory Architecture Overview..................................................................10
4.1.2 Graphics Memory Controller Hub (GMCH)............................................................10
4.1.3 ICH6R....................................................................................................................11
4.2 Super I/O ...............................................................................................................13
4.2.1 Serial Ports ............................................................................................................13
4.2.2 BIOS Flash ............................................................................................................14
4.2.3 System Health Support..........................................................................................14
5. I/O Subsystem ....................................................................................................................14
5.1 PCI Subsystem......................................................................................................14
5.1.1 P32-A: 32-bit/33-MHz PCI Subsystem...................................................................14
5.1.2 P32-B 66-MHz PCI-X Subsystem (SE7221BK1LX sku only) .............................15
5.1.3 P64-C 66/100-MHz PCI-X Subsystem...................................................................16
5.1.4 PCI-E x8 ................................................................................................................17
5.2 Video Controller.....................................................................................................17
5.3 Network Interface Controller (NIC) ........................................................................17
5.3.1 NIC Connector and Status LEDs ...........................................................................17
5.4 Interrupt Routing....................................................................................................18
5.4.1 Legacy Interrupt Routing .......................................................................................18
5.4.2 APIC Interrupt Routing...........................................................................................18
5.4.3 Serialized IRQ Support..........................................................................................19