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Pastimes : Dream Machine ( Build your own PC ) -- Ignore unavailable to you. Want to Upgrade?

To: Spots who wrote (3212)	10/24/1998 9:02:00 AM
From: Sean W. Smith	Read Replies (4) \| Respond to of 14778

>>All of the chips are locked to their respective clock multiplier (ie 300a = 4.5x 266 = 4.0x 333=5.0x etc.) but are not locked in to any one frequency or bus speed. This would be easy to do. You just put two extra foot prints on the PCB for the Slot 1 Card and populate the approriate resistors to acheive the desired clock multiplier. quick and dirty. If you wanted it to be more tamper proof you just laser etch the die after speed grading. Also very easy not expensive to do.... Exactly the way I understood it myself. How is the poor little chip going to know that its head is getting played with by the clock signal? Actually you could put some circuitry on board or on chip to measure that and halt if it was clocked wrong. I've seen this done on military designs. not very far out at all.... An onboard crystal or something? (Talk about expensive!) Thanks for confirming my suspicions. I'm not an EE, but that didn't seem reasonable, practically speaking Actually small surface mount oscillators in a the industry standard "Tiny T" Package are extrememly small and extremely cheap. viteonline.com These things are very cheap in the volumes we use and would be very very cheap in the volumes that someone like intel uses on their processors. Bottomline, its both simple and cost effect and don't be too surprised to see it happen in the future. Sean