Yes, you have the PCI LAN option on the boot tab. But do not I need to enable something before, as informed in the "step by step" transcribed by me?

Thanks God!

To enter the BIOS setup program, you have to press F1 OR F2 at start up, not both, and no enter key. The option for PXE boot probably just 'network', not actually 'PXE'.

So should I just select the Select PCI LAN option? Can you share BIOS print? Maybe this way you can see my reality.

More images:

Attached Thumbnails

         

Last BIOS Image

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"5)You should now be at the boot menu. Select PCI LAN.
6)Press Enter.
7)This should bring up a screen with the Intel Network Boot Agent. Simultaneously press Function and P (on some Lenovo ThinkPad models, this will be the same as pressing Pause|Break).
8)Press Enter.
9)This should go to failure, then go to the boot menu."

Normally I'd think that your last image would be enough to pxe boot (all other things considered).

This #7 issue I have never seen. It could be that the author used this to restart out of bios. Normally when a lan boot is enabled you may have one or more cards that will sit on boot with a message about trying...

So, disregard the "step by step" reported in the article and go straight to the PCI LAN option in the boot tab? Do I need to enable anything else, to start the PXE boot option?

Beyond the necessity of having a pxe server on your local subnet to boot from, that's all you should need to do.

I have windows server 2012.
Then access the BIOS F12, I go to the Startup tab - Boot - Boot priority order - placed PCI Lan in priority 1. Save the settings and reboot the pc?

You have two questions going on.

One is the ability of the server to provide a proper boot enviroment.

Two is the ability to enable this computer to boot to lan.

To test, you can simply boot this computer. Watch screen. It should inform you that it is trying to boot to lan even if you have no pxe server.

Dear,

I apologize for my absence. I was in another administrative task and I could not pay attention to my problem with BOOT PXE on T61. I inform that I am still having difficulties, because the boot pxe searches the server only when I use the network cable (RJ), not the wireless card of the notebook. But I will have to stop this project a little. I'm actually returning to the forum just to thank you for all the help I've had for my problem.
Thanks to those involved.

Dear,

I apologize for my absence. I was in another administrative task and I could not pay attention to my problem with BOOT PXE on T61. I inform that I am still having difficulties, because the boot pxe searches the server only when I use the network cable (RJ), not the wireless card of the notebook. But I will have to stop this project a little. I'm actually returning to the forum just to thank you for all the help I've had for my problem. Thanks to those involved.

Did we know this was wireless to begin with?

Not easy to boot pxe to wifi. Might be possible with gpxe/ipxe if a few things exist. http://forum.ipxe.org/showthread.php?tid=6813