PXE Boot Help

Question

I am taking over OSD for an SCCM 2007 R2 environment, existing Operating System Images have been created (Win 7 x64), Boot.wim images, drivers, etc and it all works fine for existing models of PCs.  A NEW model of machine has been purchased and
is being deployed that we need to PXE OSD but the NIC drivers for this machine we're not loaded.  I followed the MS KBs to obtain and extract the correct driver INF files from the vendor site to the drivers folder on the SCCM network share, add the
drivers in configman console, update the driver package, edit the task sequence and update the WIM image.  Everything went successful (assuming that's all that needs to be done).  However, when I PXE boot one of these new machines out of the box
I get the following error during boot after pressing F12: Pending request ID: 5306 contact your administrator (which sadly is me now).  when this error passes, the splash screen loads and then I get a no NIC drivers error.  I cant seem to locate
a 5306 error code message, can anyone help or provide any insight?  Thanks,

Answer 1

Apologies, my fault.  I'll describe this as best as I can based on what I know/have in front of me.  This is a pre existing environment successfully doing OSD via PXE with existing hardware and images, I'm simply adding a new HP model and
need to add the drivers for this new model so I can PXE this like the rest.  Within the console (2007 R2) beneath 'Operating System Deployment' there is 'Boot Images'  which has the x86 and x64 boot images which they are using. Beneath 'Operating
System Images' there are Win 7 x64 images (I'm using the one with the most current date)  Beneath 'Drivers' are all the existing NIC drivers and this is where I imported the new HP NIC driver I downloaded for the new HP Model machines we bought. 
The drivers (extracted INF etc) are in the SCCM server 'DRIVERS' folder on the server where all the other drivers are, I added this driver to the x64 BOOT Image noted above, updated all DPs.  Beneath 'Driver Packages' I also created a new package
for this new driver the same as all the existing ones are.  So in terms of steps, I've obtained the new 64 bit NIC drivers and copied them to the LAN, updated the drivers, created the driver package, updated the task sequence, updated
the driver to the .wim boot image, updated all DP's.  So assuming I've done all the above correctly and not missed anything, when I boot up the new machine and do an f12, it craps out and I get the  'aportpxe' error followed by NIC driver not found
when the wim is loading.
Appreciate your patience and any assistance.