I'm running a 4Gb Kit (2x2Gb) Corsair XMS3 DHX DDR3-1600 RAM (can't find a product page any more but here's the exact same review I originally read that led me to buy the stuff, that gives hopefully enough detail) on an XFX nForce 790i Ultra Sli motherboard with an Intel Q9650. It was good in its day :)
I noticed the other day whilst also trying to figure out how to overclock it, that the BIOS is auto-configuring the RAM to run at 1067Mhz instead of either 1333, the same as FSB (QDR), or even its rated 1600Mhz. Although I've read over the overclock.net tutorial on intel overlocking and I guess it makes sense that it won't do the latter automatically.
What I want to do is to make the RAM run at its rated speed; and I guess that'll probably mean oc'ing the CPU, but since everything I've read says that the Q9650 overclocks very well I'm not worried about that (indeed oc'ing this old proc for a bit of a boost would be nice!).
The previously linked guide says that achieving 1:1 is important, so is it as simple as setting the FSB(QDR) up to 1600 and then adjusting the CPU multiplier to keep it running at a sensible amount temperature-wise?
I increased the fsb to 1600 and tried playing with the voltages, probably not all the right ones though, and I couldn't get a stable machine. Wouldn't even start! Oh dear my oc'ing abilities are poor!
Since then I experienced FileSystem corruption on my RAID-0 array; could get hardly anything off it and then after resigning to rebuild I thought I'd see what Darik's 'Boot and Nuke' did... 0.01% into its operation I realised it was already trashing my disks without asking and I have subsequently lost everything - including my data backups...
I actually did cry.