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Article #18904Re: What's the deal? My chip says "SX-25"; Norton says "SX-33"
From: oldwanda
Date: Tue, 05 Jan 1993 16:54
Date: Tue, 05 Jan 1993 16:54
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In article <1993Jan5.152504.9786@bmers95.bnr.ca> khor@bnr.ca writes: >For example lets take a simple switching speed from low to high. If >it takes 35ns to switch (low and high voltage levels reference points >differs in low->high and high->low), then it will fall into the 25MHz >grade. But if the switching takes only 28MHz then it will fall into >the 33MHz grade. >In the actual case, the testing is a lot more complex and there are >hundreds of electrical tests before the chips a graded. If this is true, then how can vendors push the 25Mhz chips to 33Mhz? Wouldn't they fail at the higher speeds since they were slow in testing? 93gke@cs.williams.edu
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Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!newshost.williams.edu!93gke From: 93gke@williams.edu (oldwanda) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: What's the deal? My chip says "SX-25"; Norton says "SX-33" Date: 5 Jan 1993 16:54:50 GMT Organization: Williams College, Williamstown, MA Lines: 18 Message-ID: <1icegqINN7vl@savoy.cc.williams.edu> References: <1ht90eINNei0@hpscit.sc.hp.com> <C0Cos2.2Fw@usenet.ucs.indiana.edu> <1993Jan5.152504.9786@bmers95.bnr.ca> NNTP-Posting-Host: bigbird.cc.williams.edu