1. Design Package Contribution for Project Olympus US1-EPYC
2018/01/24

2. Overview & Agenda
The introduction describes Project Olympus AMD platform server design as US1-EPYC(Universal Server 1U-EPYC). The 1U server includes as below:
Chassis/PSU/Fan: Leverage from Project Olympus
AMD platform Motherboard: designed by Quanta, refer to ‘’Project Olympus AMD EPCY Processor Motherboard Specification’’
OCP contribution by Quanta:
Design files of EPCY processor motherboard
Below agenda will be covered during introduction:
High Level System Features
Block Diagram
System Placement
Motherboard Placement
Design Files Contribution
OCP Tenets of US1-EPYC

3. High Level System Features
Items
Description
Form Factor
1U height & full width system(441m(W)x 948.2mm(D)x 43.3(H))
MB design is for both 1U/2U system
PSU
1x Project Olympus PSU with maximum output of 1000W
Fan
6x 4028 Fans with N+2 redundancy support
Processor
AMD EPYC processor(SP3 socket, 4094 pins), up to 180W per CPU(supports for all
server class SKUs)
Dual sockets
Memory
Total 32 DIMM slots, 16 DIMMs per CPU, 2 DIMMs per channel
RDIMM/LRDIMM/NVDIMM type support
DDR4 transfer rates up to 2667MT/s(1 DIMM per channel)
Storage
SATA interface:
-4 discrete 6.0 Gb/s(in US1-EPYC case, only use one port for OS drive) -4 expansion 6.0Gb/s (MiniSAS HD Conn)
Front IO Access
2x USB3.0 Conn
PCI-Express Expansion
-2 PCIe x8 slots: for PCIe M.2 Riser cards(slot1/2)
-2 PCIe x16 slots: for standard PCIe x16 cards for AVA card and NIC card(slot3/5)
-1 PCIe x32 slot: for standard PCIe x16 or custom PCIe x32 card for FPGA(slot4)
-4 M.2 on-board Conn: for 60/80/110mm M.2 drive
-1 PCIe x8 Expansion: 1 OCuLink expansion cable for FPGA card in slot4
-2 PCIe x4 Expansion: 2 MiniSAS HD Conn with PCIe x4 for flexible usage
Server Management
BMC Aspeed AST2520 with 1xRJ45 MGMT Conn
Security
Trusted Platform Module (TPM 2.0) to support secure boot
Networking
Add-in card type NIC card support without LOM

4. Block Diagram
The block diagram describes how to maximize the critical bus arrangement of EPYC processor, like DDR/PCIe/SATA on the motherboard

5. System Placement ISO View 2x M.2 risers with M.2 module PSU
6x 4028 Fans
1x SATA OS drive
Remote Heatsink
2x CPU & 32x DIMM
AVA Card
FPGA Card
NIC Card
Others
2x M.2 risers with M.2 module

6. System Placement-CON’T
Front View
1x BMC MGMT
RJ45 Conn
3x FHHL PCIe slots
2x USB 3.0 Conn
Rear View
PSU Conn to PMDU
6x 4028 Fans

7. Motherboard Placement
System Placement
OCuLink cable for FPGA card
For FPGA card
For AVA card & NIC card
2x M.2 Risers
For AVA card & NIC card
2x on-board M.2
2x on-board M.2

8. OCP Tenets of US1-EPYC Efficiency Scalability Openness Impact
This system is designed with 32x DIMM, 3x FHHL add-in cards and maximal 32 cores/CPU to be suitably adapted for different workloads
32x DIMM for higher computing requirement, especially for larger in-memory database
Supports up to 3x FHHL add-in cards to increase the expandability for cards with different size, and extra 2x PCIe expansion for flexible usage
Watt/Core of CPU is in the leading among current available solutions in the market
Optimization of system power usage, benefit from remote heatsink for cooling with lower Fan CFM requirement
Scalability
Comply with design criteria of Project Olympus to be easily adapted for deployment with Olympus 42U/48U rack
Openness
The system builds to be compatible with Microsoft Olympus architecture 19’’ EIA rack and also compatible with Olympus 1U server chassis, to re-use the PSU, Fan, and leverage the mechanical part mostly
Impact
New AMD x86 CPU architecture for Microsoft Project Olympus, it expands the diversification of architecture for heterogeneous application
8 DIMM channels/CPU to expand the memory capacity to 2TB in 2 sockets system
Integrate I/O chipset to CPU directly to expand the flexibility of component placement in PCB layout
Plentiful 128x PCIe lanes/CPU to enable more I/O devices and throughput

9. Design Files Contribution
Full MB Schematic(PDF):
US1-EPYC_MB_G_SCH
Full MB Board Layout:
US1-EPYC_MB_G_OCP_1229
Bill of Material of MB:
US1-EPYC_MB_BOM_List
Firmware image of CPLD:
US1-EPYC_MB_CPLD_1110_V1_1

10. Thanks 10