thanks ah liang for the nice proc.
max out at 54x, freq wall 5455MHz on UD7
will use it for net surfing and NFS Shift2 only until Z68 come out.
yalor hardly seen Eco do 2133 on Sandy, same fate as Hypers - compatibility issues. u need to whack heck a lot of vdimm and VTT for these.
Go grab a new RAM lah i believe there are plenty of cheap compatible kits in the market.

as for VCCIO aka VTT, most of the time u wont need to adjust it at all @ 1.05v. U might need to increase it a lil bit when playing with higher RAM speed & tighten timings etc... Using over 1.2V should only be necessary if u're pushing the proc toward 5GHz +. Like one of my proc @ 5GHz needed at least 1.2v VTT to boot into windows. Using above 1.4v is not recommended at all - u have been warned!
Both LinX and Prime95 will stress the RAM, just that Prime tends to error out RAM settings. But u gotta Prime for at least 3 hours, some guys even did 6 hours+

For me, LinX for 1 hour is more than enuf as I wont be using this PC more than 4 hours.

Finally made a decision on changing case, anyone interested in Lian Li X2000F? Comes in a package with water-cooling installed! And most importantly comes with more than 10 noiseblocker 140mm fans.