F3-14900cl9d-8GBSR on Asrock z68 extreme 4

[Lorenzo]

I got a bundle of 2x4gb gskill sniper 1866 compatible with intel z68 ( F3-14900cl9d-8GBSR ).
Unfortunatly i got some problems playing games , like little freeze or fps drops in certain situations. I'm pretty sure that is a RAM issue cause i tried 2x2gb (gskill ripjaws ) of a friend and their going well.

when i understood that the problem was "Ram" i used memtest and it went good so those ram are ok ,and probably i need to fix something..

I updated the Bios of Asrock z68 extreme 4 to latest version ( 1.70 that support xmp1.3 ) after that i loaded xmp 1.2 ( @1866 9-10-9-28 1t ) ... now situation is better but still i can notice the problem. ( i didn't got a xmp1.3 , just 1.2 dunno if it is normal )

my cpu is an intel i5 2500k and it is oc to 4.6 ghz with intel optimized configuration ( vcore is around 1.35/1.37 on auto and i think it's a bit higher than normal , but this should not be a prob ) .. vram is 1.5v on auto.

i tried also to run those Ram to 1600@ 8-9-8 24 1t , and nothing changed.
PS: i also played prime95 for 2h running cpu stress test and than for 1h running ram stress test ... the results were good ( no problems detected ).
i don't know what to do :/ thks for help, hope u can help me.
sorry for my bad english.

[Tradesman]

First try changing the CR to 2T, you show it at 1T...if that doesn't help try raising the DRAM voltage to 1.55

[Lorenzo]

well , i used 2t instead of 1t and it went worst ... fps drop rate increased ( about 15/20 less fps ) .. now i'm trying 1t with vdram to 1.545 and seems nothing changed , now i'm running prime95 to test stability with 1.545 voltage , but atm the prob is still present.

[GSKILL TECH]

Feel free to send it in for RMA to see if a new kit works better. Have you tried one module at a time to see if it is one causing a problem?

Thank you
GSKILL TECH

[Lorenzo]

i runned prime95 and memtest+ and they went good ( that's why i think it's not an hardware prob ), i just got this stability problem while playing . Again i noticed that with 1.55 dram voltage fps still drop... atm best profile is xmp 1.2 one , but still not perfection ... i rarely have freeze and fps drop while playing ... rly don't know what to do more.

[Tradesman]

How about driver's for the GPU? especially when gaming, DRAM can play into it as most GPU will 'borrow' some DRAM to 'help' the memory onboard your graphics card.

[Lorenzo]

their up to date too ... i'm pretty sure that is a ram issue cause also in win7 while moving windows i always got a slipstream effect and also because i tested my sistem stability with gskill ripjaw of a friend.

[Tradesman]

Might want to go ahead and RMA then, can contact them at rma@gskillusa.com or rma@gskill.com (world)