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- Description
- Specifications
49Y7990 is the Intel X540 Dual Port 10GBase-T Embedded Adapter for System x, feature code A3JT: a mezzanine card with two 10GBASE-T RJ-45 ports.
Lenovo describes the X540 as offering 10GBASE-T connectivity that stays compatible with existing 1000BASE-T networks, which eases a move to 10 Gb Ethernet. The X540 adapters do not need transceivers or DAC cables.
Offloads listed in the guide include IP, TCP and UDP checksum, TCP segmentation, IPsec and MACsec. Virtualization support covers Intel VT with I/OAT and VMDq; other features are RSS, 4096 VLAN tags, 9,500-byte jumbo frames, UEFI and PXE boot, and adapter teaming.
Because it is the embedded type, the adapter ships without the full-height and low-profile brackets of the PCIe cards, and it occupies the mezzanine connector instead of a PCIe slot. All X520 and X540 adapters are withdrawn from marketing.
Server support in Lenovo's guide: the x3550 M4 and x3650 M4 with E5-2600 v2 processors, the x3650 M4 HD, the dx360 M4 (E5-2600 v2) and the nx360 M4 (5455).
Fit check: one of those servers, its mezzanine connector free. The PCIe card version is 49Y7970 (X540-T2), and 00D1994 is the ML2 version for M5 servers.
| 49Y7990 Specs | |
| Part number | 49Y7990 |
| Feature code | A3JT |
| Controller family | Intel X540 |
| Ports | 2x 10GBASE-T RJ-45 |
| Form factor | mezzanine (embedded) |
| Transceivers | not required |
| Jumbo frames | up to 9,500 bytes |
| VLANs | up to 4096 tags |
| Status | withdrawn from marketing |