There a reason you need new memory? X58 has limited memory options due to the uncore ratio.
Best bet for OCing is to sit down and just ruin your OS install a couple of times playing with the memory. Don't worry about your CPU OC for now, play with your ram. Find your bootable 7-7-7 frequency. I use the standard 7-7-7-21 (add first three to get 4th) you can get more performance by lowering the TRAS (the 4th number) I learned back on DDR to do it my way, and have not played around much with lowering it on newer platforms.
If your BIOS has a profile saver good time to use it. Unstable memory clocks have always led to CMOS reset for me.
Drop CPU multi down to x15
So start at stock with 1066 drop uncore to twice mem speed. (16x if using 1066 mem divider)
Set it to 1.7 volts Vdimm +150mv VTT (1.25v). and set 7-7-7-21 and see if it boots. If it does, up the QPI BUS +10 MHz, see if it boots rinse and repeat.
When it no longer boots. (Im not talking load windows... see if it posts) up the vdimm and VTT the same amount (one bump which ever is higher match it with the other)
+10 MHz again and again till it will not Post.
Now, find your max voltage you want to use, when it no longer post, back down 10 MHz. See if it boots windows. (it probably wont) so back it down 5 more repeat till windows loads, than 5 more for good measure
. You can then stress the memory subsystem with prime Blend. IT will probably fail, so drop it in 5 mhz increments till you get stable. If 7-7-7 leaves your mem too slow for something... try 8-8-8.
Thats how you find max at whatever timings you want. at 9CAS you should be pumping past 2000 MHz.
When finding max OC on items you have to remove other components from the equation.
Nothing wrong with getting a new chip, god forbid I tell someone not to flip new hardware LOL but use the 920 to learn on at least spend a couple of weeks getting to know the platform
Really looking at all the reviews I can find (none on your sticks exactly) thye all seem to stop around 1800 MHz... does not mean they have to though
They said my ram stops at 1800 too lol
If you are looking for a 24/7 stable all around system, by all means spend more money on ram with something you KNOW, can do XXXX MHz at X-X-X timings and X,XX volts
But for 24/7 you dont need high speed memory, the triple channel alone adds 50% to the bandwidth of DDR3 meaning slower tighter ram is more effective than faster looser