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- From: (Mike Berger)
- Subject: Re: What's the deal? My chip says "SX-25"; Norton says "SX-33"
- References: <1grur8INNkg2@savoy.cc.williams.edu> <5870140@pollux.svale.hp.com>
- Message-ID: <C01LuI.542@news.cso.uiuc.edu>
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Followup-To: comp.sys.ibm.pc.hardware
- Organization: U of Il. School of Life Sciences
- Date: Tue, 29 Dec 1992 22:44:41 GMT
- Lines: 17
-
- In article <5870140@pollux.svale.hp.com>, dlow@pollux.svale.hp.com (Danny
- Low) wrote:
- >
- > This is not quite right. Intel tests ALL chips at 33MHz and those
- > that pass are marked 33Mhz. Those that FAIL are re-tested at
- > 25MHz and if they then pass, are marked 25MHz. So your 25MHz
- > chip is marked as such because it failed at least one of the tests
- > Intel uses at 33MHz. I would not be all that confident of the
- > reliability of the chip. The dealer is betting that you will not
- > encounter the failure that made the chip a 25MHz one instead of
- > a 33MHz one.
- *----
- Do you have any reason to believe this is really the case? It would be
- very costly for Intel to test ALL chips. Usually they're sampled from
- batches. If one sample chip fails at the higher speed and passes at the
- lower speed, then the whole batch is designated for the lower speed. So
- chances are good that some will function at faster clock speeds.
-