Expansion Busses - ADLINK Technology arm AMPERE COM-HPC-ALT User Manual

COM-HPC-ALT User's Guide
Memory
Up to 384GB 3200 MT/s DDR4 in 6 DIMM sockets, Maximum 64GB per socket
Supports RDIMM, UDIMM and LRDIMM and 3DS
3 DIMM on the right side, the other 3 DIMMs on the left side
Cache
1 MB L2 cache per core
32 MB system level cache
Embedded BIOS
EDK2 UEFI with CMOS backup in 32 (or 16, TBC) MB SPI BIOS

2.2 Expansion Busses

PCI Express
64x PCIe lanes with 5x PCIe_REFCLK / 5x PCIe_CLKREQ
- Up to Gen4 speed
- PCIe 0-7 1 x4 or 2 x2 config at 0-3,
- PCIe 8-15 1 x4 or 2 x2 config at 8-11, 1 x4 or 2 x2 config at 12-15, 1 x8 config at 8-15
- PCIe 16-31 1 x16 or 2 x8 or 4 x4 config at 16-31,
- PCIe 32-47 1 x16 or 2 x8 or 4 x4 config at 32-47,
- PCIe 48-63 1 x16 or 2 x8 or 4 x4 config at 48-63,
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1 x4 or 2 x2 config at 4-7, 1 x8 config at 0-7
Copyright © 2023 ADLINK Technology, Inc.
PICMG COM-HPC R1.0
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