Intel 440BX Manual&Nbsp;

A A
B B
C C
D D
E E
4 4 3 3 2 2 1 1
NOTE 1: USB differential traces route together (Z0- & Z0+) and (Z1- & Z1+). Must be 45 Ohm Matched Stripline width 0.015 (for 1 oz)->44.88/45.45 Ohm.
75 Ohm/100 MHz/3A 75 Ohm/100 MHz/3A
PCB Trace 45 Ohm Matched, Routed Together Stripline width 0.015 (1 oz) 44.88/45.45 Ohm
Poly-Fuse Poly-Fuse
NOTE 2: Protect differential traces w/ guard traces or double space to any other signal.
Place As Close as Possible to PIIX4
Place As Close as Possible to PIIX4
PCB Trace 45 Ohm Matched, Routed Together Stripline width 0.015 (1 oz) 44.88/45.45 Ohm
NOTE 3: Place ferrites at connector. NOTE 4: Poly-fuse min 1.5A max 5A.
BOTTOM of Stacked USB Connector
TOP of Stacked USB Connector
Poly fuses should be in range of 1.5A to 5A
Place these caps within 1 inch of USB Connector stack
THIS DRAWING CONTAINS INFORMATION WHICH HAS NOT BEEN VERIFIED FOR MANUFACTURING AS AN END USER PRODUCT. INTEL IS NOT RESPONSIBLE FOR THE MISUSE OF THIS INFORMATION.
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E
USB Connectors
C
17 22Friday, February 16, 2001
Title Size Document Number Rev Date: Sheet of
Z1_VCC Z0_VCC
Z1_GND Z0+ Z1- Z1+ Z0-
USBVFIL1
USBVFIL2
USBVFIL1
USBVFIL2
Z0_GND
USBP1-14 USBP1+14
OC0#14OC1#14
USBP0+14 USBP0-14
V5_0
J2
USB Stack
1 2 3 4 5 6 7 8
9 10 11 12
VCC0 D0- D0+ GND0 VCC1 D1- D1+ GND1
GND GND GND GND
FB4
BLM41P7 50S
1 2
12
F2
SMD250-002
FB3 BLM41P7 50S
1 2
12
C158 0.01uF
F1
SMD25000 2
FB2 BLM41P7 50S
12
12
FB1 BLM41P7 50S
12
12
C125 47pF
C22 0.1uF
C23 0.01uF
C157 0.1uF
C1 0.01UF
C124 47pF
C122
47pF
C123 47pF
R93
27
C6 100uF
C2 100uF
C7 0.01UF
R90 15K
R95
27
R88 15K
R94
27
R4 10K
R92
27
R89 15K R91 15K
R1 15K R2 10K
R3 15K

Intel 440BX Specifications

General

Brand	Intel
Model	440BX
Category	Motherboard
Language	English