[Beowulf] SuperMicro X7DWT-INF board - what connector? what cable?

Duke Nguyen duke.lists at gmx.com
Wed Aug 29 05:28:01 PDT 2012

Hi Don,

On 8/29/12 6:49 PM, Donald J Holmgren wrote:
> We use the AMD version of this motherboard ("TwinU").  The landed Mellanox MT25204 HCA has a 4x microGiGaCN connector at the back of motherboard.  These are also often called CX4 connectors.

Excellent! Thanks so much for this info.

> Depending upon the switch you will connect the systems to, you need either microGiGaCN to microGiGaCN cables, or microGiGaCN to QSFP cables. Colfaxdirect.com lists many of each type.

The switch we are considering is QLogic SilverStorm 9024 
(9024-FC24-ST1-DDR). So I suppose we need microGiGaCN to microGiGaCN 
(CX4 to CX4) cable?



> Supermicro.com has detailed specs and the manual for this motherboard.
> Don
> On Aug 29, 2012, at 5:05 AM, "Duke Nguyen" <duke.lists at gmx.com> wrote:
>> Hi folks,
>> We plan to build a cluster using server built with SuperMicro X7DWT-INF
>> motherboards. Unfortunately google does not give us much information
>> about the type of connector that X7DWT-INF has.
>> Anybody using this motherboard in their cluster? Please give us advice
>> about which connector the board has and what infiniband cable we should
>> acquire to fit in the rack-mount servers built with these boards.
>> Thanks,
>> D.
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