On Tuesday 04 September 2007 15:18, Hans Witvliet wrote:
Hi,
I think i fried my system (again ;) and was considering the config for my next system.
When looking at the power consumptions of the multi-core CPU's, i was wondering if it is possible to power-down one or more cores when the system load does require them...
Idle CPUs (or cores) naturally consume less power.
A quad core is nice, but needs over an 100watt of energy, that has to vent-out aswell...
I was under the impression that the Core 2 processors were more energy efficient (as well as far better performing) than their predecessors. In any event, peak power consumption occurs only during 100% CPU utilization (and that power consumption depends somewhat on the mix of instructions, i.e., which portions of the CPU's processing logic is active). When the CPU is idle, it's power consumption (and thus its heat output) are much less. Keep in mind, too, that the "chipset" consumes quite a bit of power, independent of what kind of CPU it serves. These are things like the memory controller hub, MCH, the I/O controller hub, ICH (usually combined) and especially the GPU as well as other chips contribute significantly to the system's power consumption. Check out http://www.pcstats.com/articleview.cfm?articleid=2097&page=3 for interesting power consumption measurements for various current CPUs, including the Core 2 Duo. Randall Schulz -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org