1.3 Logical structure
G2DERO-B motherboard is shown in the figure below:
DDR 4 DIMM0
DDR 4 DIMM0
DDR 4 DIMM0
DDR 4 DIMM0
DDR 4 DIMM0
DDR 4 DIMM0
DDR 4 DIMM0
DDR4 DIMM0
SYS DEBUG(Header)
PCIE4.0 x16 Slot *2
PCIE4.0 x8 Slot *2
TPM Header
MiniSAS HD *2
M.2
LPC
RS232(Header)
PHY
D - sub ( Rear ) & Header (
Front )
AST 25 00
SPI
F RU ROM
DDR4
B M C DEBUG ( Header )
Motherboard logic block diagram 1-2
The motherboard features are as follows:
⚫ Support 2 AMD EPYC 7003/7002/7001 series processors*;
⚫ Single CPU supports 8 DDR4 channels, each channel supports 1 DIMM, and supports a total of 16
DDR4 slots; supports a single capacity of 16 GB, 32 GB, 64 GB, 128 GB, 256 GB, and
the maximum memory capacity of the whole machine is 4 TB;
⚫ DDR4 type：DDR4 2133/2400/2666/2933 MHz ECC-RDIMM/LRDIMM/3DS LRDIMM;
⚫ There are 10 groups of PCIE slots on the motherboard, among which: support 6 PCIe x8 (x16 slot, slot
1/3/4/5/8/9)) and 4 PCIE x 16 (slot 2/6/7/10), slot 3 is designed as x8 or no signal, slot 4 is
designed as x8 or x16 (that is, the motherboard can support 4 PCIe x 8+5 PCIe x16);
⚫ The motherboard provides 1 M.2 Key M SSD slot, only supports 2280 size and PCIe X4 signal;
⚫ Two Gigabit Ethernet ports are integrated on the motherboard, using I350-AM2 chip;
⚫ The BMC chip in this board adopts the AST2500 control chip of ASPEED Company, which is
used for IPMI remote management, VGA output port, dedicated Gigabit RJ45 management
network port.
CH_A DDR4 DIMM0
CH_B
DDR4 DIMM0
CH_C DDR4 DIMM0
CH_D
DDR4 DIMM0
CH_E DDR4 DIMM0
CH_F
DDR4 DIMM0
CH_G
DDR4 DIMM0
CH_H
DDR4 DIMM0
TPM Header
I2C
USB2.0
PCIE2.0 x1
PCIE4.0 x8 Slot *4
PCIE4.0 x16 Slot
PCIE4.0 x16 Slot
x16 xGMI
x16 xGMI
x16 xGMI
x16 xGMI
x2 WAFL
PCIE4.0x8 x2
PCIE4.0x4 x2
PCIE4.0x4 x1
CH_A
CH_B
CH_C
CH_D
CH_E
CH_F
CH_G
CH_H
USB3.0 *2(Rear)
Vertical USB3.0
PCIE4.0 x8x4
PCIE4.0 x16
PCIE4.0 x16
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