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Soyo SY-6BA+ Not recognizing all memory

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First post, by douglasfir

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Hey guys, I am trying to install 512MB of RAM in this board, I have 2x matched Kingston 256MB/133MHz/ECC DIMMs, pulled from a working system. No matter what slot the DIMMS are in, the system only sees 256MB, it doesn't matter which DIMM i use either. The board apparently supports ECC memory, there is a setting in the BIOS i changed to indicate the ECC memory is present as well. I have cleaned the DIMMs contacts, as well as the DIMM sockets contacts with 99% alcohol, no change. Is there a setting in the BIOS that could need to be changed? possibly a BIOS update? what say you? The system has a Pentium 3 500/512 CPU in case anyone was wondering. Thanks for your help.

Reply 1 of 3, by tauro

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I remember mixing and matching DIMMs for a SY-6BA+III because it only supported certain combinations of modules simultaneously (and in a specific order too).

I'd suggest getting other DIMMs and trying different slots and combinations.

Reply 2 of 3, by Repo Man11

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Sounds as though you're running into the 440BX memory density issue; here is a thread that should help you find memory modules that will work properly. Can anyone help me find the correct type of RAM? Asus CUBX 440bx

A lot of times when you first start out on a project you think, This is never going to be finished. But then it is, and you think, Wow, it wasn't even worth it. - Jack Handey

Reply 3 of 3, by douglasfir

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Tauro, Repo Man11, thank you very much for your help, It indeed appears I need to try "lower density" DIMMs without buffer/parity chips. Not a big deal really. I really appreciate it 😀

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