I want to overclock my bro's pc but i need alot of help. Its a AMD Sempron, 1600 mhz (8 x 200) 2600+ processor, ASRock K8Upgrade-NF3 MB, 512 MB Kingston valueRAM, NVidia Geforce FX 5200 (128MB). Can anyone help me with settings for this. Its on stock cooling and temps are at 63-68c idle. The fan speed however is 790 RPM, is that normal?