Undesired overcloccking

[t0rek]

The motherboard is a K8N Neo4-F 3.0, the CPU a AMD64 Venice 3800+ and the RAM is Kingston DDR400

The system FSB according to Coretemp, CPU-Z, Crystal CPU and other utilities is 201 when is supossed to be 200. I'm not overclocking at all. I checked the BIOS settings a lot of times, and everything is at stock there with Cool & Quiet disabled (I'm using the latest BIOS). That causes my CPU to be clocked at 2412 mhz when it should be just 2400 mhz (200 x 12). I'm also sure that I'm not running any program that is causing the thing to overclock itself. This really bothers me, even when I know 1 mhz won't do any damage, I would like it to see it working they way it should be. Any solution?

[BlueFalcon7]

Im not that advanced with hard overclocking, but I do know that the speed is relative to the amount of power that is going through the processor. Power fluctuates. Thats why computers use capacitors. Capacitors stabilize the voltage and current going through a circuit. Usually capacitors are only regulated to 5% or 10% difference. Thats why they use more than one capacitor in a circuit. In general, the more capacitors, the more stable the power is. Now the voltage still fluctuates in a power grid no matter what. Now, when you start an application, it adds more power to the processor, that will cause a load on the capacitors, and the slight change will cause quite a difference in power on your CPU.

I wouldnt worry, I dont know the power grid standards for Costa Rica, but I would imagine that it has to do with your power supply. If you ever see the inside of a power supply for a computer, it is loaded with capacitors of all sizes. It helps maintain a constant voltage.

[t0rek]

I tested it with 3 differents PSUs by now... I didn't happened with my old Winchester 3000+ and an older MSI mobo

[Clements]

Some motherboards overclock a tiny amount by default. Sometimes a BIOS flash can remedy this. Do I recommend that in this case? Not really, since it is doing literally no harm.

[t0rek]

There is no harm of course, but I'm very obsessive sometimes, and I'm running the latest BIOS