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Re: CB030, A 68030 SBC for hobbyists [message #7192 is a reply to message #7191] Fri, 06 March 2020 16:02 Go to previous messageGo to previous message
mikemac is currently offline  mikemac
Messages: 250
Registered: March 2017
Senior Member
mikemac wrote on Fri, 06 March 2020 16:56
plasmo wrote on Fri, 06 March 2020 16:49
Mike,
That's bad. The RAM is definitely not working. You do not need to jumper the mem64_n16, CPLD should be able to,accommodate different size DRAM. Tell me where you bought it? Are you sure it is 5V DRAM? Many 64 meg operate with 3.3V.
Bill
I bought it off Ebay from 1-800-4Memory. The invoice claims it's 5V. Mad
The chips on the SIMM are MT4LC16M4H9, which the datasheet online claims is a 3.3V chip. So I think they sent me 3.3V SIMMs instead of the 5V ones I ordered. Mad Mad Mad



Mike
 
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