try 1.275v o lower c....im using 1.275v currently for 3.4ghz..Idle at 1.120v....mayb can go more lower to 1.2v? mayb u can try it n let me know bout it

this is nice.  go till hit d bottom bro. will try mine after bac from hometown.
ur idle CPU v got <1.0v?

nice temp and volt..
mine idle at 40c edy..
this s3x core sure love OC and low volt..
very good point for poisoning..

nice oc there bro. what cooler r u using on Ur s3x core?

Thermalright FTW..
me also used to get 30c on 1.25 vcore but while on 1.4v and above the idle is 40~42..
load 52c~55c..
Quite hot eh?..not even 4Ghz..
any scythe ninja 3 here?..

Might be alittle bit off topic here:
Anyone using Thermalright Venomous X? and installed in intel-style, i mean not the conventional AMD type bottom to top airflow direction, but left to right airflow.

And is it possible to use screwdrive to tighten the screws instead of using the supplied mini wrench?
Very troublesome leh >_>

Cause my all my RAMs blocked by the huge ass Vx and my 4890 VRM heatsink. its impossible remove my ram without remove my heatsink first.

U mean can use the crossbow kit from xigmatek on thermalright ven x??     

Owhhhhh u mean use the crossbow then use the ven x normal 775 attachment to mount the heatsink eh?
Surface contact no problem eh? Naise info there

Have u tried to undervolt it? Even at 3.2~3.3ghz my x6 can run with only 1.308~1.320v on full load

Thats something that i don't understand sometimes, a quad core without L3 cache, logically should need less than that

Thanks for those replied me.
Yeah im using the AM3 BTK, well i dont want to remove my mobo just to change the heatsink direction >_>

Vx is thicker than TRUE so i think angrysnail might be correct.

but nevermind gonna sell off my 890fx liao lol.

Unless your CPU is lemon chip lol, most new chip 1.4v can run 3.6ghz or above already. while Thuban 1.4v can run 4GHz already, but its pretty hot at that voltage unless you have some best aftermarket cooler installed.

1.35v, but unstable, i guess my chip need 1.425 something. Well currently im stuck at 3.7GHz, i guess my RAM is the culprit here because i used up all the ram slots.

Temp never reach 60c of course, in aircon room 
Using Vx with 2 f--king loud SFLEX-G clone (Sony SFF21c)