Choice B is more expensive and I believe higher quality. Also it is listed as dual channel where choice A is listed as quad channel. My motherboard, P8Z77-V PRO, is described as dual channel memory architecture. (Can't say I totally understand that despite reading about it.)
So my question is should I go with A or B? (please don't C or start over unless you really think I should.)
Oh yeah, I can't find any of them listed in the QVL - no 32GB kits within reason or even similar 8GB sticks.
8GB/stick densities run a little slower, but in very rare instances do you 'need' >8GB unless you're rendering, databases, video, etc or want/need a RAM Drive. For gaming I don't advise 8GB/stick densities. The negative to 8GB is their current stability issues and in most cases you'll need to tweak some voltages to avoid occasional errors and BSOD's. Make certain you either reduce the Page file or move it off the SSD.
If it were 'me' I'd get the Corsair H100, look at the Corsair Obsidian Series 550D, and if you're archiving then the LG BR (or DVD writer) with M-DISC.
Is there a reason to change? The specs seem nearly identical between your suggestion and the one I've already ordered except for some reason the G.Skill only lists 9-9-9 rather than 9-9-9-24 for some reason, G.Skill is $15 more expensive and the Mushkin is 1.6v rather than 1.5v. I thought Ivy Bridge was supposed to take 1.5v.
I only want the 32GB which is supported by my motherboard. I initially "built" the theoretical computer on pcpartpicker shown in my initial post with only 16GB. It's not built yet other than on paper although I do own some parts.
Then I decided I wanted 32GB (only 32 total) and didn't buy the 16GB kit and did buy the 32GB kit labeled "A", the 10-10-10-30 in my first post. I own it now, still in the package.
One of the Tom's members suggested he didn't like the 10-10-10 and thought it might cause problems. So then I ordered another similar 32GB kit, labeled "B" in my first post which is 9-9-9. This is in the mail.
I just want to know which of the 32GB kits to install "A" the 10-10-10 or "B" the 9-9-9. I only want 32GB total in my computer and just want to pick the right one and send the other back. Based upon your prior Mushkin memory suggestion I think you would say the 9-9-9
None of these are listed on the QVL resulting in my confusion.
Most 8GB/stick sets are not going to be found on Consumer QVL lists. IF you're going to be doing a lot of rendering (databases or video) then sure keep the CAS 9 32GB ('B') set and return the ('A') set. Otherwise it won't matter to most other applications.
I have an X79 and 'I' can use 8xDIMM so -- who knows maybe that was a thought for you as well...