ram voltage to high?

[valhallarising]

motherboard msi h55-e33
graphics card radeon r7 260 x oc 2 gb
ram crucial ballistix 2x4 gb

Hi, i got problems graphics card crashing drivers and i Think the ram voltage is the problem, i was only able to run the graphics card with 4 gb Before but after lowering voltage to 1,556 it works ith 8 gb. it seems like default ram voltage is 1.6 default . is 1,5556 a good value or should i lower it all the way to 1.5?
strange thing is with a low profile graphics card it works without issues even if the voltage is higher, can one card be more sensitive to this than others?

 

[syked3]

RAM voltage is fine right now. Don't go above 1.70V.

 

[valhallarising]

ok im trying to find out if Graphics card is theproblem or the ram, or is it normal that the ram can cause problem if voltage is wrong?
thanks for your help

 

[syked3]

A RAM voltage error could definitely cause crashes. But if you've lowered the RAM voltage and everything seems to be working then I'd say run with and see if you encounter any further errors