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28 July 2003, 15:15
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#1 |
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Junior Member
Join Date: Apr 2003
Location: England
Age: 36
Posts: 113
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Trap Door Cards
i found 2 trap door cards..
i need to know what they are for, i know one is ram but not sure on the size of the ram. they came from a a500's.. card 1: ( Ram ) small board with 4 surface mounted chips each labled OKI M514256A. it has a switch which desables ram and 3 weird looking things. there are some markings on it: AMRAM - NC - ISSUE 2 card2: ( ? ) small board with 4 surface mounted chips labled HY51C4256S Korea. it has 14 transistors ( Gold Brown Grey Blue ) and a switch labled no. There are markings all over it: V4256 Rev 2.4, (c) 1990 DJ, A5 |
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28 July 2003, 18:53
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#2 |
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Registered User
Join Date: Jan 2003
Location: france
Age: 48
Posts: 116
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they are both 512KB ram expansion cards.
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28 July 2003, 22:17
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#3 |
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Junior Member
Join Date: Apr 2003
Location: England
Age: 36
Posts: 113
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 thanks
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