About BIOS 1008 (A7V)...

In the latest release (1008) of this BIOS, i think they have completely removed the L2 Cache ECC Check switch, useful for overclocking.

1) Is it now always ON or OFF? I suppose the former...
2) Should I fall back to 1007 or is there any "patch" to bring up the switch again?
3) On the official site they say 1008 fixed instability issues when setting (modifying) Vcore.
But do they mean setting it within the BIOS (JumperFree Mode) or also by jumpers?

On the other side they also added a lot of new parameters.
Some of their meanings are obvious to me, some not.

Is there anyone (or a webpage) able to explaine the effect of ALL those memory settings???

Thanx to everyone who helps.