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LED
Description
BMC_HB_LED1
BMC Heartbeat LED
LED1
UID LED
LED2
Onboard Power LED
JCOM1
X32 WIO
X8 WIO in X16 Slot
COM
SYSTEM
BIOS
JTPM1
TPM header
CPU2 PE1 x16
CPU2 PE2 x16
CPU2 PE3 x8 *2
X2
X2
PE3
X2
UP0
X56 RISER
CPU2 PE3 x8
CPU3 PE3 x16
CPU3 PE2 x16
CPU3 PE1 x16
X2
UPI1
X2
X2
PE3
CPU3 PE3 x16
CPU3 PE2 x16
Figure 1-5. Intel PCH C621 Chipset: System Block Diagram
Note: This is a general block diagram and may not exactly represent the features on your
motherboard. See the System Specifications appendix for the actual specifications of your
motherboard.
JLAN1
JLAN1
JVGA1
Dedicated
VGA CONN
RTL 8211F
LAN Connector
AST2500A2
eSPI
BMC/HWM/SIO
SPI
eSPI
USB[7]
PE[5]
PCH
SPI
DMI
PCH DMI-to-CPU1
X2
PE2
PE1
DMI
X2 X2
CPU2
UP2
UPI1
X2
UPI2
UPI0
X2
X2
CPU3
DMI
PE2
PE1
CPU3 PE1 x16
Status
Blinking Green: BMC Normal
Solid Blue: Unit Identified
Solid Green: Power On
SSATA0, gen3
SSATA1, gen3
SSATA2, gen3
SSATA3, gen3
SSATA4, gen3
SSATA5, gen3 DOM
SATA0, gen3
SATA1, gen3
SATA2, gen3
SATA x14
SATA3, gen3
SATA
SATA4, gen3
SATA4, gen3
SATA6, gen3
SATA7, gen3
REAR
JUSB4
USB
1
USB
0
USB3.0
2,3
USB2.0 1,2
PEUP
CPU1 PE3 x16
CPU1 PE3 x8
CPU1 PE2 x16
X2
X2
PE1 PE2 PE3
X2
UPI0
UPI
UPI
X2
X2
UPI1
X2
PE3
PE2
CPU4 PE3 x16
15
Chapter 1: Introduction
X40 ULTRA IO
CPU1 PE3 x8
DOM
CPU1 PE1 x16
CPU1 PE2 x16
JUSB2
JUSB1
USB2.0
4,5
USB3.0
3
USB2.0
3
CPU1 DMI-to-PCH
CPU1 PE3 x8 *2
DMI
X2
X2
X2
CPU1
UPI2
UPI1
X48 RISER
CPU4 PE3 x16
CPU4 PE2 x16
CPU4 PE1 x16
X2
UPI2
UPI0
X2
X2
CPU4
PE1
DMI
CPU4 PE1 x16
CPU4 PE2 x16
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