# Lambda Quad - How to Unbond NVLINK from P2P/SLI mode

## post by mrwig on Dec 5, 2021

My lambda quad 4x a6000 workstation has the GPUs setup to use NV4 and SLI/P2P options. This is reducing memory bandwidth between all 4 cards to 14GB/S. I need the cards to be connected solely via the nvlink bridge, so two pairs of linked cards at the highest shared memory speed possible.

How can I reconfigure the nvlinked cards so that they are no longer bonded 4way but operating as two separate nvlinked pairs?

[Some current outputs from terminal can be viewed here.](https://drive.google.com/drive/folders/10nL1rL1ylcdp2uSbbe_4WAXStXA7eiIA?usp=sharing)

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## post by Karun on Dec 1, 2022

Any update?

I have a blade system with 4 A6000.

What does the below output mean?

```
$ nvidia-smi nvlink -gt d -i 0,1,2,3

GPU 0: NVIDIA RTX A6000 (UUID: GPU-938d731b-…)

Link 0: Data Tx: 63,654,019,510 KiB

Link 0: Data Rx: 7,631,152,229 KiB

Link 1: Data Tx: 63,650,865,559 KiB

Link 1: Data Rx: 7,632,899,051 KiB

Link 2: Data Tx: 63,652,014,108 KiB

Link 2: Data Rx: 7,631,403,371 KiB

Link 3: Data Tx: 63,652,312,551 KiB

Link 3: Data Rx: 7,629,171,248 KiB
```