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feipoa
Joined: 08 Mar 2011
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Location: Canada
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 Posted: Mon Jan 23, 2017 2:46 am Post subject: Earliest production of Cyrix 5x86 |
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| Does anyone know what the earliest production datecode of a Cyrix, ST, or IBM 5x86 is? Wiki mentions August 1995, but what has been uncovered? |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Mon Jan 23, 2017 2:53 am Post subject: |
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7/10/95 Cyrix reveals M1sc as 5x86
10/23/95 Cyrix M1 debuts as 6x86 - The chip is manufactured by IBM, and priced at US$450 each in quantities of 1000
10/23/95 Cyrix announces 5gx86
11/13/95 Cyrix announces 120 MHz 5x86 - available for US$160 each in quantities of 1000.
11/13/95 IBM announces own version of Cyrix 5x86 as 5x86C
First Production 5x86s were made mid-June 1995
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feipoa
Joined: 08 Mar 2011
Posts: 553
Location: Canada
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| Posted: Mon Jan 23, 2017 3:39 am Post subject: |
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| Anyone with the back photo of a Cyrix 5x86 with June 1995 datecode? |
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CPUShack
Joined: 16 Jun 2003
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feipoa
Joined: 08 Mar 2011
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| Posted: Mon Jan 23, 2017 4:01 am Post subject: |
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Did you happen to log the earliest datecodes for the following Cyrix 5x86 speeds?
80
100
120
133
If so, would you be willing to post them?
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CPUShack
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feipoa
Joined: 08 Mar 2011
Posts: 553
Location: Canada
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| Posted: Mon Jan 23, 2017 4:25 am Post subject: |
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Thanks a lot!
Unless I messed up with my calendar, I am getting 27 1995 as the first week of July 1995 for an engineering sample and 28 1995 as the second week of July 1995 for a non-engineering sample. Is that correct? But you are saying that there are indeed some from mid-June?
Interesting that the 5x86-80 came after the 100 and 120. Were they failed 100/120 units? I have a 5x86-80GP with G5F8539K. Not sure what the date on my other 80 is (I did not photograph it).
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CPUShack
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