There is a part number for the SU2300 board, 63Y2036. If you're interested in more information on the SU2300 and speedstep, there's some here
It seems that there is some misunderstanding.http://www.intel.com/support/processors ... 028855.htm
- as i understand it, old IST changes both frequency and voltage as one; EIST changes frequency and voltage independently.
6x is minimal multiplier on Core 2 architecture; e.g. if CPU has a multiplier of 12, it will change its clock between 6x and 12x; if CPU has a multiplier of 9, it will change its clock between 6x and 9x; and it CPU has a multiplier of 6, it will, of course, sit in 6x independent of EIST support.
However, this doesn't mean that CPU won't change its voltage (and, as a consequence, its power consumption). In fact, NBR thread confirms that SU2300 changes its voltage dynamically.
Also, AFAIK, Core 2 mobile platform supports dynamic FSB frequency change, so that CPU frequency will go down from e.g. 6x200MHz to 6x100MHz. Again, NBR thread confirms that FSB frequency changes dynamically on a laptop with SU2300.
So, the only drawback of SU2300 is its inability to go below 6x. All CPUs won't go below 6x, but because SU2300 max. multiplier is 6x, one could make a conclusion that SU2300 doesn't support EIST because it cannot change its multiplier. In fact, it cannot decrease its multiplier not because of lack of EIST support but because multiplier is already set at its minimal value.
If i understand it right, the difference between SU2300 and other celerons without EIST support is that:
1) Laptop with SU2300 will change its FSB frequency, as opposed to other celerons;
2) SU2300 will dynamically adjust its voltage, as opposed to other celerons.