990FX Fatality Prof 1600mhz memory question

[bburrill2012]

Hi there. New to the forum. I have searched around google but couldnt find a good answer.. Hopefully someone on this forum has this board and can help me out.

I have
990FX Fatality Professional MB
Phenom II X6 Thuban 3.3Ghz Overclocked to 3.8Ghz
Corsair Vengence 4x4GB 1600Mhz CML16GX3M4A1600C9
EVGA Geforce 560 Ti Classified 1280MB/320Bit/448Cores


There's been alot of talk about what to enable and what to disable in the bios.. Also seen people run 1600Mhz memory on am3 and have seen alot of people having trouble with it. I cant get mine to run on 1600.. only 1333mhz. Ran stable on Prime95 for 12+ hours.

FSB 200
Forget what multiplier but its at 3800mhz
NB Mhz 2400
CPU NB Voltage 1.26
HT link is 2000

If anyone can help me out or point me in the right direction that would be great.. Also if you need any other specs or need to know what all is enabled or disabled let me know. Thanks

 

[bburrill2012]

I finally got the ram to run at 1600mhz.. my dumbass thought it was 1.6v ram but i looked on newegg and its 1.5.

But I still cant get passed the first test on prime95.

FSB 200
20x 4000mhz
nb mhz 2400
cpu nb voltage 1.265
HT link 2000mhz

I DO NOT KNOW WHAT TO PUT LLC AT???!?!?! ANY HELP

Do i need to up the voltage on my ram a tad bit??
I read somewhere that if using 1600mhz ram with am3 you might need to put cp nb voltage at 1.3 or higher but when I do it wont even boot.. bsod or just a random restart before it gets to windows.

 

[capttripppp]

You could try bumping your voltages incrementally, PLL should be somewhere between 1800 and 2100 I do believe. Personally when I am clocking AMD I try to keep it at 2000-2100

 

[esCob4r]

Im using and ASRock Extreme4, Phenom II x6 1090T, and DDR3 1600Mhz memory. I have it running stable as a rock at 3.8. Not sure where my problem lies when trying to hit 4.0 or higher. Either way my settings in bios are

200FSB
x19 Multiplier
1.375 Vcore
2400HT Link
2400NB Frequency
I didn't change the NB voltage at all

As for the memory all I did was manually set it to 1600Mhz in bios and runs fine. Didn't touch the voltage on it or anything.

 

[trents]

Try your ram voltage at 1.55. 1.5 may not be enough and 1.6 may be too much. Also, run CPU-z and check the "Memory" tab (which shows your current ram timings) against the "SPD" tab for the XMP1600 mhz. column. You may have to manually relax the timings.