Справочник Пользователя для Intel S3420GP

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IntelP®P Server Board S3420GP TPS 
Functional Architecture 
3.3 Intel
®
 3420 Chipset PCH 
The Intel
®
 3420 Chipset component is the Platform Controller Hub (PCH). The PCH is designed 
for use with Intel
® 
processor in a UP server platform. The role of the PCH in Intel
®
 Server Board 
S3420GP is to manage the flow of information between its eleven interfaces: 
ƒ
 
DMI interface to Processor 
erface 
SATA I
ƒ
 
SPI Interface 
ƒ
 
ƒ
 
3.4 I/O 
Sub
Intel
®
 3420 Chipset PCH provides extensive I/O support. 
rent PCI-E co
nt on different board SKUs: 
Intel
®
 Server Board S3420GPLX 
One PCI-E X16 slot connected to the PCI-E ports of CPU. Two PCI-E x8 slots and one SAS 
of PCIe switch. One PCI-E X8 slot and one PCI-E x4 slot 
ne PCI-E X8 slot connected to the PCI-E ports of CPU. One PCI-
 
 
The PCI Express* configuration uses standard mechanisms as defined in the PCI Plug-and- 
Play specification. The initial recovered clock speed of 1.25 GHz results in 2.5 Gb/s/direction, 
which provides a 250-MB/s communications channel in each direction (500 MB/s total). This is 
close to twice the data rate of classic PCI. The fact that 8b/10b encoding is used accounts for 
the 250 MB/s where quick calculations would imply 300 MB/s. The external graphics ports 
support 5.0 GT/s speed as well. Operating at 5.0 GT/s results in twice as much bandwidth per 
lane as compared to 2.5 GT/s operation. 
ƒ
 
PCI Express* Int
ƒ
 
PCI Interface 
ƒ
 
nterface 
ƒ
 
USB Host Interface 
ƒ
 
SMBus Host Interface 
ƒ
 
LPC interface to IBMC 
JTAG interface 
ƒ
 
LAN interface 
ACPI interface 
-system 
3.4.1 
PCI Express Interface 
Two diffe
nfigurations on single board are depende
 
z
 
module connected to PCI-E ports 
connected to the PCI-E ports of PCH. 
z
 
Intel
®
 Server Board S3420GPLC 
One PCI-E X16 slot and o
E x8 slot connected to the PCI-E ports of PCH. 
z
 
Intel
®
 Server Board S3420GPV 
<TBD
There is one 32-bit, 33-MHz 5-V PCI slot. 
 
Compatibility with the PCI addressing model is maintained to ensure all existing applications
and drivers operate unchanged. 
Revision 1.0 
 
Intel order number E65697-003 
 
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