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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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 Posted: Wed Feb 05, 2020 5:19 am Post subject: i50, i66, i75, i133, iPP, what more |
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So, I've observed that for some Intel CPUs, theres engraved (or rather embossed, maybe) the clock speed in the bottom. I have in my own collection a 486DX2/66 with "i66" embossed in gold cap, Pentium 75 and 133 with "i75" and "i133" in black bottom cap, and a lot for other Pentiums embossed with "iPP".
I have seen "i50" on a DX2, but which else exists - and are they gold or black bottomed?
Sorry for the bad images .. |
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x86sniper
Joined: 19 Mar 2004
Posts: 179
Location: Hong Kong
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| Posted: Wed Feb 05, 2020 12:04 pm Post subject: |
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| iMPP exists for CPGA mobile pentium e.g SY027 |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Wed Feb 05, 2020 1:08 pm Post subject: |
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They started doing this to deter counterfeiters
It made it harder to simply wipe the marking, though then some counterfeiters removes the bottom plate, hammers out the i50 and remarked at 66
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H3nrik V!
Joined: 15 Apr 2014
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Location: Denmark
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| Posted: Thu Feb 06, 2020 2:55 am Post subject: |
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| x86sniper wrote: | | iMPP exists for CPGA mobile pentium e.g SY027 |
Oh yeah, forgot about that, thanks. |
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Thu Feb 06, 2020 2:57 am Post subject: |
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| CPUShack wrote: | They started doing this to deter counterfeiters
It made it harder to simply wipe the marking, though then some counterfeiters removes the bottom plate, hammers out the i50 and remarked at 66 |
Yeah, I'm aware of the reason - though it seems a little odd, that I haven't seen anyone above i133? Or did Intel then realize that it didn't prevent counterfeiting, only making it marginally harder?
But are there other than the one listed? And what about gold/black? |
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crazybubba64
Joined: 03 Jul 2018
Posts: 1371
Location: WI, USA
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| Posted: Thu Feb 06, 2020 8:38 am Post subject: |
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| H3nrik V! wrote: | | But are there other than the one listed? And what about gold/black? |
I will dig through my chips tonight and post here if I find any outliers.
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Fri Feb 07, 2020 12:38 am Post subject: |
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| crazybubba64 wrote: | | H3nrik V! wrote: | | But are there other than the one listed? And what about gold/black? |
I will dig through my chips tonight and post here if I find any outliers. |
Cool, would be nice to know what more to be looking for for the collection ..  |
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Neon
Joined: 04 Feb 2008
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Location: Dallas, Texas, USA
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| Posted: Fri Feb 07, 2020 12:54 am Post subject: |
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| i66 on black cap |
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H3nrik V!
Joined: 15 Apr 2014
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Location: Denmark
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| Posted: Mon Feb 10, 2020 3:03 am Post subject: |
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| Neon wrote: | | i66 on black cap |
DX2's, I assume? |
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Neon
Joined: 04 Feb 2008
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Location: Dallas, Texas, USA
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| Posted: Mon Feb 10, 2020 8:47 am Post subject: |
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| H3nrik V! wrote: | | Neon wrote: | | i66 on black cap |
DX2's, I assume? |
Yes, DX2-66
Both are SX911 |
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Tue Feb 11, 2020 9:30 am Post subject: |
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| Neon wrote: | | H3nrik V! wrote: | | Neon wrote: | | i66 on black cap |
DX2's, I assume? |
Yes, DX2-66
Both are SX911 |
My Gold "i66" is an SX955 .. |
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