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popo
Joined: 18 Feb 2004
Posts: 520
Location: Formosa
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 Posted: Sat Feb 19, 2005 3:42 am Post subject: IBM 486 SLC?? |
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Does anyone recognize this chip?
It wrote "IBM 486 SLC" on the main board but it looks like 386. 
And nothing in the back |
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Sat Feb 19, 2005 5:55 am Post subject: |
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| It uses 386SX pinout but has 486SX instructions + 16KB L1 cache. Overprinted FRU number 50G6950 is 486SLC2-50. I have no info what 63G9228 is. |
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popo
Joined: 18 Feb 2004
Posts: 520
Location: Formosa
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| Posted: Sat Feb 19, 2005 6:29 pm Post subject: |
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Thanks Elar.
I got some information from this page.
http://www.redhill.net.au/c-2.html
The pictures show that IBM 486 SLC/2-50 is 50G6950 and SLC/2-66 is 50G6663.
But mine is 63G9228  |
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Sun Feb 20, 2005 11:43 am Post subject: |
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I have an Alaris board with overprinted 50G6950.
But mine is FRU 33G0395. Boards frequency synthesizer is hardwired to 33MHz FSB. I guess this makes the 33G0395 also 486SLC2-66. I wonder, what this overprinting thing is. Factory overclocking? |
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