Advanced Micro Devices - Moderated (AMD) Message Board

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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 210.00

-2.0%

Jan 7 3:59 PM EST

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To: heatsinker2 who wrote (81468)	6/3/2002 1:17:16 PM
From: Dan3	Read Replies (1) of 275872

Re: the board design can't be complete until it has been tested with fast chips. While it's true that a final validation must always be done, internal clock speed of a CPU is not even detectable by the motherboard (unless it's an unlocked CPU with multiplier being set externally), unless the CPU correctly responds to some kind of query. All the motherboard ever "sees" are the various I/O speeds, which are the same for an 800mhz chip, a 1.6ghz chip, a 2.4ghz chip, etc. On chip, operations take place at various multiples of these I/O speeds. All but final testing can be done using chips with lower than top speed internal multipliers. Since current draw goes up and I/O idle time goes down as internal clock speed goes up, some bugs can arise as internal clock speed increases, so boards should be validated at full, final, speed.

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