[rc5] Overclocking (wasRe: [rc5] Another approach)
SHuffman at Atl.Carreker.Com
Mon Jul 7 11:42:55 EDT 1997
On Mon, 7 Jul 1997 06:44:39 +0300 (EET DST), Tero Kilkanen wrote:
>It would be an enormous job to test every
I am fairly sure that testing every chip is exactly what is done. There is a significant failure rate, ie chips that simply do not work, so all the chips have to be tested to make sure that they fuction. I believe that at the same time they are marking the "best speed" of the chip.
If I remember correctly the first runs of Pentiums had a 75% failure rate, which was the primary reason for the short supplies and consequent high prices.
I also remember that chips that fail to perform at a marketable clock speed may be used in integrated applications at a much slower clock rate, perhaps less than 10Mz.
All of the above is coming out of my meat memory so I may have forgotten a lot.
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