limit for upgrading

[r53s]

I told you to buy a 3000+, because some versions of this motherboard only support it.
But you can look for your version, Version Kamet 2 http://h10025.www1.hp.com/ewfrf/wc/genericDocument?lc=en&cc=us&dlc=en&docname=c00063254 only supports 3000+, Version Kelut http://h10025.www1.hp.com/ewfrf/wc/genericDocument?lc=en&cc=us&dlc=en&docname=c00069442 supports 3200+...
The difference seems to be in the Bios...