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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 214.11

+3.9%

Nov 26 3:59 PM EST

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To: Joe NYC who wrote (16369)	10/28/2000 5:15:46 PM
From: dougSF30	Read Replies (1) of 275872

Joe, re: KT133 FSB hard to get over 110 MHz Joe, here's more on that issue: aceshardware.com ----------------------------------------------- Hi! > That is a good question, and it may come down to what batch your > processor came from. It has been shown that certain processor > batches overclock better than others. I really wonder if the > reason no one has been able to overclock past 115MHz is not the > processor, but the chipset. It's the chipset. > The old Tbirds and Durons may overclock to > 133Mhz (266 DDR) easily if they are paired with a stable chipset that > was designed to do that. ALL Durons/TBirds work on a 133 MHz DDR FSB if the multiplier is adjusted to keep the core within its limits. > I doubt that the revisions to the Tbird to get > it to go to 266DDR were extensive; No revision to the core at all. > in fact I'll bet the revision is not > on the core itself, but on those components surrounding it on the chip. Well, the multiplier is set to a lower value and some contacts tell the chipset to set the FSB to 133 MHz DDR. That's it. > The VIA KT133 is a great chipset, but I don't think the engineers had > mass-overclocking in mind when they developed it. The reason for your > system unstability may be more chipset related than processor > related....maybe. So it appears to be one of those perplexing > questions that the only real answer I can think of is "wait and > see". It's not that the KT133 chipset was done without the o/cer in mind, it comes from the very same company that also makes Apollo Pro133a that o/c 30-40% without much hassle. Word has it that the limitations are due to a clock generator that is not up to the task of overclocking. Ciao Martin ------------------------------------------------------- Doug

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