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Corsair vengeance 8gb 1600mhz to 1866mhz problem. - Page 2

post #11 of 14
Thread Starter 
Quote:
Originally Posted by munaim1 View Post

Likely needs more volts. have you tried increasing the VTT voltage?

how much should i be increasing the vtt by to bring down the Cas to 8 at least?
post #12 of 14
Quote:
Originally Posted by lmclean12 View Post

Quote:
Originally Posted by munaim1 View Post

Likely needs more volts. have you tried increasing the VTT voltage?

how much should i be increasing the vtt by to bring down the Cas to 8 at least?

It's trial and error, start low and each time you increase stress test it to find stability. You shouldn't need more than 1.15v so try not go above that too much.



According to this, the max safe is 1.2v
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post #13 of 14
Quote:
Originally Posted by lmclean12 View Post

I still cant overclock my ram to 1866mhz again even with xmp enabled but in the meantime ive been tightening my timings on 1600mhz, so far i've got 9-8-7-24, can't take that first number down at all, fails to boot.
http://valid.canardpc.com/show_oc.php?id=2541674
same i cant get any lower than 9 cas latency either but i suppose its just luck in how good a memory module you get, somehow my ram reverted back to 1.5 volts and is still stable. so far my best is 1.5v 1866mhz 10-10-9-23 1t
    
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CPUMotherboardGraphicsRAM
i7 3770k z77 sabertooth asus gtx 560 dcuii Corsair vengance 8gb 
Hard DriveHard DriveOptical DriveCooling
Seagate ST3750525AS 3.5 inch Barracuda 750 GB 7200 samsung 830 ssd LG GH22NS50.AUAA 22x SATA DVDRW ocuk v6 water cooling bundle 
CoolingCoolingCoolingCooling
gentle typhoon ap-15 XSPC X2O 750 XSPC Raystorm Mayhems pastel mint green 
OSMonitorPowerCase
windows 7 ultimate 64-bit ViewSonic VX2370Smh-LED 23" SuperClear IPS LED ... Corsair CX600 zalman z11 plus 
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post #14 of 14
Thread Starter 
i think my ram modules are just **** in that case, i'll try upping the vtt later and see if i can get my 1866mhz overclock back, makes no sense at to why i can get sporadically but alot of the time the computer just fails to boot...
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