Mellanox Technologies MCX312B-XCCS User Manual (English)

Questions and Answers:

J
John JonesAug 12, 2025
What to do if the link indicator light is off on Mellanox Technologies Computer Hardware?
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  Christine KrauseAug 12, 2025
  If the link indicator light is off on your Mellanox Technologies Computer Hardware adapter, ensure the adapter driver is loaded. Also, try another port on the switch, make sure the cable is securely attached, check that you are using the proper cables that do not exceed the recommended lengths, and verify that your switch and adapter port are compatible.
J
Jessica RiveraAug 16, 2025
What to do if Mellanox Technologies MCX312B-XCCS Computer Hardware adapter no longer works?
- R
  Richard JonesAug 16, 2025
  If your Mellanox Technologies Computer Hardware adapter no longer works, try reseating the adapter in its slot or a different slot. You might also try using another cable or reinstalling the drivers, as the network driver files may be damaged or deleted. Rebooting the server may also resolve the issue.
S
sduranAug 19, 2025
Why is the link light on Mellanox Technologies MCX312B-XCCS, but no communication is established?
- J
  Julia HawkinsAug 19, 2025
  If the link light is on but there is no communication established with your Mellanox Technologies Computer Hardware adapter, check that the latest driver is loaded. Also, ensure that both the adapter and its link are set to the same speed and duplex settings.
O
Oscar HallAug 23, 2025
How to fix server unable to find Mellanox Technologies Computer Hardware adapter?
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  richard31Aug 23, 2025
  If the server is unable to find the Mellanox Technologies Computer Hardware adapter, ensure that the adapter is placed correctly and that the adapter slot and the adapter are compatible. You can also try installing the adapter in a different PCI Express slot, using the drivers that came with the adapter or downloading the latest, ensuring your motherboard has the latest BIOS, or rebooting the server.
B
Brian GuzmanAug 27, 2025
What to do if Mellanox Technologies MCX312B-XCCS adapters stopped working after installing another adapter?
- A
  Amanda GuerreroAug 27, 2025
  If adapters stopped working after installing another adapter on your Mellanox Technologies Computer Hardware, try removing and reinstalling all adapters. Check that cables are connected properly, and make sure your motherboard has the latest BIOS.
D
Douglas BrownAug 31, 2025
How to fix Mellanox Technologies Computer Hardware link indicator light being off?
- J
  jill43Aug 31, 2025
  If the link indicator light is off on your Mellanox Technologies Computer Hardware adapter, ensure that the adapter driver is loaded. You can also try another port on the switch, make sure the cable is securely attached, and verify you are using the proper cables that do not exceed the recommended lengths. Additionally, check that your switch and adapter port are compatible.
E
Eric RobinsonSep 3, 2025
How to troubleshoot Mellanox Technologies MCX312B-XCCS when server cannot find the adapter?
- T
  Tyler MuellerSep 3, 2025
  If the server is unable to find the Mellanox Technologies Computer Hardware adapter, ensure that the adapter is placed correctly and that the adapter slot and the adapter are compatible. Try installing the adapter in a different PCI Express slot and use the drivers that came with the adapter or download the latest. Also, make sure your motherboard has the latest BIOS and try to reboot the server.
N
nicholas78Sep 7, 2025
Why Mellanox Technologies Computer Hardware link light is on but there is no communication?
- F
  fdavisSep 7, 2025
  If the link light is on, but no communication is established with your Mellanox Technologies Computer Hardware adapter, first check that the latest driver is loaded. Also, verify that both the adapter and its link are set to the same speed and duplex settings.

Mellanox Technologies MCX312B-XCCS Specifications

General

Manufacturer	Mellanox Technologies
Model Number	MCX312B-XCCS
Category	Computer Hardware
Interface Type	PCI Express 3.0 x8
Form Factor	Low Profile
Ports	2
RoHS Compliance	Yes
Product Type	Network Interface Card
Supported Protocols	Ethernet, iWARP, RoCE
Operating Temperature	0°C to 55°C
Storage Temperature	-40°C to 70°C
Humidity	5% to 95% non-condensing