16gb Kingston hyperx genesis grey 1600mhz.
Bought 8mb from ocuk in dec 2011 then another 8gb in September 2012. Had all 16gb in my old pc running at 1600ghz with no problems. Memtest86 is running as we speak so will leave that until morning to see if any errors show up..then will try stick by stick
One mistake here is the mixing RAM. You shouldn't mix RAM even if there same Model. Thats why you buy in sets 4GB, 8GB and 16GB
See how the Memtest runs if error show then you will need to find witch RAM stick is damaged and replace it.
With the 4GB Corsair in, using XMP Profile 1 in the BIOS (which is correct @ 9-9-9-24 1.65v) I bluescreen 10 seconds into a Blend test. Same error as before, different RAM.
So:
1) 16GB Kingston RAM is causing crashing when run at correct speeds (800Mhz) or even when under-clocked to 667Mhz
2) 4GB Corsair RAM is causing crashing when run at correct speeds (800Mhz). (http://www.corsair.com/cmx4gx3m2a1600c9.html)
What else might this be?
I would have said this is likely due to the Z77 chipset recommending DRAM Voltage is @ 1.5v, but my memory requires 1.65v to achieve the 800Mhz it should.
But even when it was at 667Mhz and 1.5v I got a BSOD playing PoE.
http://www.tomshardware.co.uk/forum/319559-12-memory
http://hardforum.com/showthread.php?t=1686478
http://teksyndicate.com/forum/motherboards/asus-sabertooth-z77-15v-vs-165v-memory/126897
Related to me:
http://www.mmo-champion.com/threads/1165784-ASUS-Sabertooth-Z77-1-65v-RAM
CPU or Motherboard Do you have spear thermal paste? Can you re-seat the CPU I would also check the Pins on the socket they is a chance you might have bent them.
The CPU has a Memory Controller so if this is damaged would explain why you keep crashing when stressing the RAM.
Mind you this is all just guess work right now.
Not true Z68 also recommends 1.5v and my RAM is rated 1.65v but I run mine @1.575v