3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
3.18
3.19
3.20
3.21
3.22
3.23
3.24
4
Debug Recommendations .........................................................................................4-1
4.1
4.2
®
Intel
440GX AGPset Design Guide
82371EB (PIIX4E).......................................................................................3-16
3.7.1
PIIX4E Connections.......................................................................3-16
3.7.2
3.7.2.1
Cabling..........................................................................3-20
3.7.2.2
Motherboard .................................................................3-20
3.7.3
PCI Bus Signals ..........................................................................................3-22
ISA Signals .................................................................................................3-23
ISA and X-Bus Signals................................................................................3-23
USB Interface..............................................................................................3-24
IDE Interface ...............................................................................................3-24
Flash Design ...............................................................................................3-25
Miscellaneous .............................................................................................3-31
82093AA (IOAPIC)......................................................................................3-32
Manageability Devices ................................................................................3-33
Software/BIOS ............................................................................................3-35
3.20.1 Design Considerations...................................................................3-36
Mechanicals ................................................................................................3-36
Electricals....................................................................................................3-37
3.22.1 Design Considerations...................................................................3-37
Layout Checklist..........................................................................................3-38
3.24.1 Design Consideration.....................................................................3-38
Slot 1 Test Tools ...........................................................................................4-1
4.2.1
4.2.2
4.2.3
4.2.4
I/O Buffer Models .............................................................................4-2
4.2.5
FLOTHERM* Model .........................................................................4-2
v