BSOD Memory management

snowdog · 6 Jul 2015 at 20:44

I swapped my ram from 3x4gb Patriot Viper Extreme ( running at 9-11-9-27 1866 1.65V 2T) to 2x8gb Mushkin Blackline ( from a 32gb kit, XMP profile says 1866 11-11-11-27 1.35v).

Been getting BSOD's ever since. 5 now in the past 2 hours. While usually my pc was on 24/7 ( I really turned it off just once in a long time) with the old memory and solid.

I've tried running them at various speeds and volts:.
1866 11-11-11-27 2T 1.35v
1866 11-11-11-27 2T 1.65v
1600 11-11-11-27 2T 1.5v
1600 11-11-11-27 2T 1.35v

Keep getting random app crashes ( eg. chrome crashing, dropbox crashing or even explorer.exe crashing) and eventually BSOD's.

The odd thing is I ran the Windows Memory test and no faults were found :confused:

( with both!) ?

XMP is enabled in BIOS...

Currently on 1 stick and so far so good, ( though the last time with 2 sticks it lasted 20 minutes too). What do you guys reckon, faulty memory ? Or do I need to change anything else in bios coming from my 3x4gb to 2x8gb setup ? Sandybridge RAM controller. I've tried both slot combo's 2+4 and 1+3... ( With my old config I used slots 2 to 4)

wazza300 · 6 Jul 2015 at 20:49

what board? try with vccio/sa or vtt at 1.15v from stock 1.05v

also set dram voltage to 1.55v

snowdog · 6 Jul 2015 at 20:53

P8z68 Gen3.

Is the voltage bump neccessary for 8 gb sticks or so ? as 3x4 gb ran without any problems for ages with tighter timings and speeds than this!

ps. still so far so good with just 1 stick.

wazza300 · 6 Jul 2015 at 20:55

spoke to someone before with similar issue,same board idk if it was you

ive never used 8gb modules in mine just 4gb,yeah the more memory you have the more vccio you'll need (above 8gb anyway)

have same board just the non gen3 version,running 16gb here no trouble but four 4gb

snowdog · 6 Jul 2015 at 21:42

Ok, now trying with a DIFFERENT 2nd stick of 8gb, vccio at 1.15, ram at 1.55v, and 1866 11-11-11-27 2T...

snowdog · 8 Jul 2015 at 19:49

After 2 days of use it seems fine so far.

Wonder what did the trick, the different 2nd stick or the extra vccio ?

The stick I considered faulty is used in a different pc now without problems, albeid at SPD speeds not XMP ( not my pc though so I don't care).