I wonder which was that did it.
You running CPU at 1.4GHz instead 2.5GHz.
The ram at 480 instead of 800 which means timings almost double (it is like running DDR-800 at 8-8-8-25 and tRFC 86)
MCH OverVoltage way high for 1GB of memory, same goes to DDR2 OverVoltage.

See if you can use the CPU max Ratio (12.5), then try to use DDR-667(x3.33) with 5-5-5-15 timings or DDR-533(x2.66) with 4-4-4-12 timings, and DDR2/MCH OverVoltage at +0.1.