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Server ST250 (7Y45) - how to disable NIC in BIOS?

2020-12-18, 20:55 PM

Hi,

 

how can I disable one of the two main network adapter cards (on board)?
I am having an odd issue to troubleshoot here. Therefore I would like to permanently disable card no. 1 (not only in device manager, once windows is booted, but from within BIOS).


Cheers! :)
bfg

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79 Posts

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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2020-12-21, 1:48 AM

Hi bfg,

 

Can you find the setting at UEFI setup > System Settings > Devices and I/O Ports > Enable / Disable Onboard Device(s) ? Onboard LAN Ports can be disabled/enabled there in general ThinkSystem servers.

 

Thank you,

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79 Posts

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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2020-12-21, 1:48 AM

Hi bfg,

 

Can you find the setting at UEFI setup > System Settings > Devices and I/O Ports > Enable / Disable Onboard Device(s) ? Onboard LAN Ports can be disabled/enabled there in general ThinkSystem servers.

 

Thank you,

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07-17-2018

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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2020-12-21, 15:15 PM

Would it be possible to elaborate on your initial issue? We may be able to help.

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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2020-12-21, 23:37 PM

Hi,

 

I will test as soon as possible, I need a service window from the customer first.
As the next machine of this type maybe arriving here shortly, I may be able to test with the new machine instead.

Thank you, I will keep you informed.

bfg

EDIT: Thank you for offering help regarding my initial issue with this: It seems to be a quite common problem that windows network type will shift from 'domain' to 'private' (here: Windows server 2019 standard, ROK). At the moment I use a script, that restarts the NLA service every server restart (+ 5 minutes delay). My guess is, this may have to to something with the unused second NIC...

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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2021-03-17, 16:53 PM

Sorry for my belated answer.

You were absolutely right, this is the correct place to disable nics, I checked this today.
I have no idea on how I could have missed this in December - sorry!

Thanks again and stay healthy!
:)
bfg

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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2021-03-28, 20:00 PM

Hi again,

 

so disabling the nic seems to work fine at first.
But after installing Windows Server 20109, it is still decting all nics, even the disabled one. So the option 'disabled' seems to have no effect.
Do you have any idea why?


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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2021-03-29, 0:08 AM

Hi,

 

Can you please capture XCC service data, upload it to the following site with machine type & serial number, then tell us serial number information so I can check if network adapter is disabled in UEFI configuration. Thank you,

 

https://logupload.lenovo.com/

 

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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2021-03-29, 6:20 AM
Hi, ok, I just uploaded the requested service data. I will send the serial number via pn.
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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2021-03-29, 7:15 AM

Hi,

I checked the log and confirmed onboard lan port 1 (mac address: **** C4:6A) is disabled and port 2  (mac address: **** C4:6B) is enabled. Do you mean the both addresses are seen from Windows?

 

I also tested with my SR630 and confirmed that Windows NIC is disappeared once disabling onboard lan port from UEFI, so do not know why the port is seen in your case. And it is odd why the issue happens again after reinstalling Windows...

 

Not sure if it helps, but I would recommend to enable/disable onboard lan port from UEFI once again to see if this will be reflected to Windows network configuration.

 

Thank you,

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Re:Server ST250 (7Y45) - how to disable NIC in BIOS?

2021-03-29, 8:59 AM

Hi,

 

thank you for your very fast reply! :)

Yes, you are right, that is exactly the case - both nics are seen within Windows although NIC1 is disabled via UEFI setting.

I double checked as requested:
- Booted to XCC - UEFI-Setup
- Changed NIC1 back to ENabled
- Booted to Windows

- Nothing changed

- Booted again to XCC - UEFI-Setup
- Changed NIC1 back to DISabled
- Booted to Windows

- Nothing changed, NIC1 and NIC2 are still both visible within Windows

Kind Regards!

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