NonPagedPoolSize

According to article:

Q126402 - PagedPoolSize and NonPagedPool Size Values in Windows NT

The NT OS (4.0) is limited to 128 Megs of nonpagedpool and Win2k is 256
Megs.

Which is what I am seeing, even if I change NonPagedPoolSize/Quota to some
large value (256 on a 512 Meg machine, and try to allocate 192 in my driver)
all I am getting is 97 Megs.

I am wrong? Or can I get more?

Thanks,
John