Athlon II X2 240 & M4A9XTD EVO

I have had this computer for about a month now. I am new to overclocking. Whenever I try to oc I can't get past 230 bus freq with a ratio of 14. I have increased the cpu voltage from stock, 1.35, to 1.4 and that didn't change anything. 3.2 Ghz is fine but I have read about people able to get up to 3.4-3.5 on stock voltage. What should I change to increase my speed?

Options in bios

Ai overclock Tuner--------manual
CPU bus frequency ---230
PCIE frequency--------100

CPU ratio-------------------14.00x
cpu/nb frequency---------auto
cpu voltage----------------1.4
cpu/nb voltage------------auto
cpu vdda voltage---------auto

ht link speed--------------auto
ht link width---------------auto
ht voltage------------------auto

DRAM frequency-----------auto
DRAM voltage--------------auto

nb voltage------------------auto
nb 1.8V voltage------------auto
sb voltage-------------------auto

PCIE Spread spectrum----disabled


The temps at 3.2 are 45c with a room temp of 24c while gaming


My computer
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...