17
Chapter 1: Introduction
Figure 1-5. Intel® C621 Chipset: System Block Diagram
BMC
AST2500
HWM
VR13
6+1 PHASE
255W
VCCP1&2 12v
PE2 PE1 DMI
PE3
P2
P1
P0
CPU 2
P2
P0
DMI
PE3 PE2 PE1
P1
CPU 1
G
K
L
A
D
H
J
B
C
E
F
M
P2- DIMMC1
#1
P2- DIMMB1
#1
#1
#2
P2- DIMM
A
2
P2- DIMMF1
#1
P2- DIMME1
#1
P2- DIMMD
2
#2
#1
P1- DIMMF1
#1
P1- DIMME1
#1
P1- DIMMC1
#1
P1- DIMMB1
#1
#2
#1
P1- DIMMA1
P1- DIMMD2
#2
#1
CPU2 Slot 9
PCIE 3.0 x8
CPU2 Slot 10
PCIE 3.0 x8
CPU2
Slot 8
PCIE 3.0 x16
CPU2 Slot 5
PCIE 3.0 x8
CPU2 Slot 6
PCIE 3.0 x16
CPU2
Slot 11
PCIE 3.0 x4
x16
x8
x8
x8
x8
x4
DMI
PET [4,5,6,7]
USB2.0 [9]
ESPI
PET9
sSATA Gen3 [4..5]
SPI
PCH
SATA Gen3 [0..3]
USB3.0 [1..5]
USB2.0 [7..12]
SATA Gen3 [4..7]
PET [0,1,2,3]
USB2.0 [2..5]
x4
x4
8GB/s
8GB/s
8GB/s
32GB/s
16GB/s
16GB/s
16GB/s
16GB/s
x16
x8
x8
x8
x8
CPU1 Slot 7
PCIE 3.0 x8
CPU1 Slot 3
PCIE 3.0 x8
CPU1 Slot 2
PCIE 3.0 x16
CPU1 Slot 1
PCIE 3.0 x8
CPU1
Slot 4
PCIE 3.0 x16
SPI FLASH
32
MB BIOS
BMC SPI
MUX
PCH SPI
SPI FLASH
32MB BMC
DDR4
VGA
NC-SI(RMII)
EXT CONN
JNCSI1
UL1
PHY
RTL8211E
COM1
IPMI LAN
RJ45
TPM Header
S-SATA0
S-SATA1
I-SATA-0~3
IPASS CONN
I-SATA-4~7
IPASS CONN
M.2 CONN
PCIE 3.0 x4
To BMC RMII port
NC-SI
JLAN1
RJ45
JLAN2
RJ45
X550
10G
10G
ASMedia Switch
ASM1480
ASMedia Switch
ASM1480
COM2
PSU0
PSU1
port 1,2(USB3.0)
+
port 11,12(USB2.0)
HDR 2x5
port 8,9(USB2.0)
port 3,4(USB3.0)
+
port 2,3(USB2.0)
TYPE A USB8 (3.0)
port 5(USB3.0)
+
port 10(USB2.0)
REAR USB0/1
port 4,5(USB2.0)
REAR USB4/5 (3.0)
HDR 2x10
16GB/s
16GB/s
16GB/s
16GB/s
32GB/s
8GB/s
10.4GT/s
Polarity Inversion
UPI
UPI
UPI
LANE Reversal
USB6/7 (3.0)
USB2/3
FAN1
FAN2
FANA
FANB
PDB-
PT213X
BPN
SAS IN [0...3] SAS IN [8...11]
SAS IN [4...7] SAS IN [12...15]