if the fx 9590 is just a 8320 over clocked can i down clock it to 4 ghz?
why would i want to do this you ask? i got it for free and i dont want to draw all that power from the wall all the time all i need to know is if its possible and if it will be stable at a lower clock?
Undervolting is the ginger haired stepchild of tweaking, in the shadow of the blond blue eyed overclocking.
The first step of overclocking should always be undervolting. The silicon lottery has as much to do with volts as it has to do with speed.
First you undervolt, it's a bit like overclocking in reverse. Where you find the lowest stable voltage at stock clock. It's something we should all be doing to our CPU's. Even those that do not overclock, lower power usage, lower temperatures and in some cases longer life of the components. For those interested in overclocking it's the first step to successful overclock. How can you hope to get the best stable overclock if you don't know the starting point for a stable voltage?
If your silicon was binned as an FX-9590 that means it is proven stable (enough to warranty) up to and including 4.7Ghz on all 8 cores. Meaning that it absolutely can be underclocked to whatever speed you desire. The limiting factor is how low of a voltage will produce stable results at your desired speed. This is determined by the quality of your unique silicon and is something you'll have to find on your own through testing.