Errors on the memory

Run memtest again with 1 stick of ram installed. Test them all individually. Gskill has a lifetime warranty.

Could you not install the OS or what actually is the problem - if simply having problems installing the OS, try installing with a single stick of DRAM....If the problem is with results from memtest - try testing each stick individually - you can get false results from testing multiple sticks at once

Again, if the problem is installing Win - try the install with a single stick of DRAM - at times Win simply won't install w/ multiple sticks, it's weird and have yet to find a reason, but going to a single stick often does the trick, then simply add the other sticks once Win is installed

if the ram is good ... you always can put it on the second set of slot ... they will work fine too .. that also the best way to know if that was your MB problem

I'd kill it after 4-5 passes - it takes a while, meant to mention that before, sorry

I hope this isn't considered hijacking, but I'm having a similar problem. I'll make a new thread if this is against the rules.

Question to OP, were you getting BSOD's previous to doing a fresh install? What errors were you encountering? Try some of the stuff I tried below to weed out the problem.

My issue: I have a 16GB G.Skill Raptor kit and recent started getting BSOD's
G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM 1600 (PC3 12800) Desktop Memory F3-12800CL10D-16GBXL

WhoCrashed Report: http://pastebin.com/5ZXxgsTD
(The reason for the gap in BSODs is I did a system restore to July 9th and was on vacation from July 13 - 24th)
WhoCrashed says it's probably not hardware, but I think that's just precautionary because 9 out of 10 it is software.

I initially thought my problem was an unauthorized driver I installed for my Nexus 5 recently (Naked driver method #2) and tried removing the driver (From compmgmt.msc & using USBDeview) but kept getting BSODs. I tried doing a repair install and upgrading my Windows 7 Pro to Windows 8 Pro, but I continually encountered errors on the upgrade process and could never complete to process. (I tried at least 8 times to repair/upgrade) (0x80070241 on the Windows 7 Repair, the Windows 8 Upgrade was a generic Windows 8 installation has failed error)

I used two ISOs for the Windows 7 Pro, one from Microsoft another from Digital River. - Windows 8 ISO from Microsoft DreamSpark (From my school). All 3 mount to a USB drive using Windows 7 USB/DVD download tool from Microsoft.

I DID NOT try a fresh install, only upgrades/repairs. A fresh is my last resort and I'd rather not format because my install still works other than random BSODs and I am still trying to do work from my PC.

The Tests: I tried Almost every combination and here are my results.

Ram/Slot #'s go as 1/2/3/4. I used the starting number as the Ram's "name."
Ram #4 gave a pass with 5 minutes of testing. Ram #2 gave errors almost immediately (~30 sec)
Ram #2 by itself gave the most errors.
I don't have the save logs I made from memtest, W7 won't mount the drive for reading. Only wants to format it.

With all this in mind, how safe am I to assume that it is indeed my RAM that's failed. I'm at a 90% certainty. Should I try to do a Windows 7 repair install now that I've narrowed it down? See if I get the 0x80070241 from before? I really don't want to if I don't have to, rather not have to deal with all the setup. I may play a game and see if I can get a BSOD later.

Next step is probably an RMA. I do have the box, but not the paper packaging that came with it. RAM was purchased via Amazon, so I can download a new invoice. Any idea if I need to return the entire kit? Never done an RMA before.

Thoughts / suggestions?

B3RL1N
What mobo and CPU? In the future please start a new thread

Damn, didn't know I had a response, I enabled email notifications (Set spam filter) and didn't receive anything.
GIGABYTE GA-Z77X-UP5 TH & 3770K - Stock clock.

I don't have the latest BIOs for my Mobo.

No BSOD's since removing the "faulty" RAM module..