First post, by Hanamichi
A strange one but let me explain.
Some SMP systems, PIIIs especially can have two different rated CPUs installed say Coppermine 533Mhz and 933Mhz. This configuration functions okay in NT and XP it seems.
The reason to do this is that <600Mhz can help with some Voodoo 1 games for compability while a faster CPU is handy for other games like Unreal.
(Also in the case of Slot 2 systems <=700 Mhz CPUs have multiplier control, any faster then 700 and you loose multiplier control by jumpers. Similar for some PIIs in Slot 1)
So I would like to switch between the CPUs somehow. Say a registry change (for 98) followed by a reboot, however googling has turned up very little.
When I run DOS or 98 every boot results in the 2nd CPU, labelled CPU1 on the moterboard being used.
Does anyone know how this is chosen and could it be manipulated? Thanks