The two links below are NF7 specific and include suggestions for RAM, in addition to other tweaks for the Abit. The advantage of the mobile is the adjust the multiplier, thereby running it at higher fsb and increasing overall system performance. Among the popular choices for doing this on an Abit are ram with the following chips, from whatever source (Kingston, Crucial, Buffalo, OCZ, etc): Micron -5B C, Hynix BT-D43, Samsung F-TCCD (newest revision), and of course BH-5 or BH-6, and even some of the newer CH-5. Some of these require Vmods to be able to reach the higher speeds, some will run this within the NF7's default limits. Read through some of these articles and some of the threads in this forum, including Sen's review of his 35W mobile 2400 and flapperhead's thread on the Kingston valueram with the Micron chips (also used by OCZ in their EB line). There is a lot of good input from people sharing their experiences, all of which should help you in your decision of what ram to buy. There is no perfect answer, as it will be impacted by things such as whether you intend to do vmods or not, how high an overclock you are trying to reach, which will them be impacted by you cooling alternatives, etc. You should be a target range that you would be happy with, then search for the ram that will do that at the timings that you are willing to accept, within the other parameters (voltage, cooling, etc) that you have to work with/within.
The third link is a good overclocking guide which unlike many, gives you suggestions as to what the problem might be when you encounter certain instability issues.
The last link is to a fine article on memory at PC Perspective which will help with fsb and memory timings questions.
That's enough homework for the weekend.
http://www.logan.eclipse.co.uk/abit...ionfree.com/underclock/index.php?showtopic=53
http://www.neoseeker.com/Articles/Hardware/Guides/OCguide/
http://www.pcper.com/article.php?aid=15&type=expert
They may be a problem with some of these links. I'll add another post and try to fix if needed.