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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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 Posted: Wed Apr 30, 2014 2:48 pm Post subject: SD18 386DX-33 IV |
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Hey all,
Just had to buy this one from eBay. Can anyone tell me, what the "SD18" is? Apparently it is not an sSpec, but then, what is it?
Does anyone know what the "IV" means - is it a stepping? And are "IV"s always Double-Sigma? I don't think I've ever seen an IV with Double-Sigma?
Hopefully it is not considered doubleposting, that I also posted this in the "latest find" thread?
Best regards, |
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Wed Apr 30, 2014 2:50 pm Post subject: Re: SD18 386DX-33 IV |
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| H3nrik V! wrote: |
Does anyone know what the "IV" means |
Oh, just found by clicking the SD18 link...  |
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frag_
Joined: 17 Nov 2008
Posts: 4015
Location: Estonia
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| Posted: Wed Apr 30, 2014 2:52 pm Post subject: |
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"IV" - CHMOS IV technology, without "IV" - CHMOS III.
SD18 is multi-speed sspec. |
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iguana
Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Wed Apr 30, 2014 3:09 pm Post subject: |
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Thanks, but would it be likely to assume, that although they aren't necessarily marked with the double Sigma, they will still be flawless? I would suspect, that Intel would have corrected any design faults, at the time they changed to the IV production technology? |
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Wed Apr 30, 2014 3:10 pm Post subject: |
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| frag_ wrote: | "IV" - CHMOS IV technology, without "IV" - CHMOS III.
SD18 is multi-speed sspec. |
Does that mean, that any SD18 can run at 33 MHz? |
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frag_
Joined: 17 Nov 2008
Posts: 4015
Location: Estonia
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| Posted: Wed Apr 30, 2014 3:50 pm Post subject: |
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| H3nrik V! wrote: | | frag_ wrote: | "IV" - CHMOS IV technology, without "IV" - CHMOS III.
SD18 is multi-speed sspec. |
Does that mean, that any SD18 can run at 33 MHz? |
No, only ones with 33 speed grade will do it guaranteed. |
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