- Oct 9, 1999
- 21,019
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I'm trying to get my old PC into good enough shape that it will be OK for someone else trying to learn to use PCs. I don't know a heck of a lot about memory types.
The motherboard is a M-Tech R407e and has (8) 30-pin SIMM slots and (2) 72-pin SIMM slots. I currently have (4) 4mb and (4) 1mb 30-pin SIMMs for a total of 20MB. So the 30-pin slots are full, and I have (2) 72-pin slots to use. The CPU is an AMD 486-133 so it runs Win95 decent enough.
A friend gave me 2 16MB 72-pin SIMMs which don't work. The mobo manual implies certain 72-pin chips would have to be single-sided and others double-sided. Looking at the SIMMs, there are chips on both sides so I assume they are "double-sided", and the manual doesn't show any combination that uses 16MB double-sided 72-pin chips, and I assume that's why it doesn't work.
The relevant pages from the mobo manual: first page, second page. Only certain combinations of memory will work, apparently, according to the manual. Overall specs on the mobo are here.
My question: should I try to trade what I have for 16MB "single-sided" 72-pin SIMMs, or do something else? The only combination that will let me use the 30-pin chips I already have is a 36MB setup that would require adding (1) 16MB single-sided 72-pin chip. I'm just trying to get at least 32MB of RAM in this thing as cheap as possible because I'm just going to donate it anyway.
Thanks in advance.
The motherboard is a M-Tech R407e and has (8) 30-pin SIMM slots and (2) 72-pin SIMM slots. I currently have (4) 4mb and (4) 1mb 30-pin SIMMs for a total of 20MB. So the 30-pin slots are full, and I have (2) 72-pin slots to use. The CPU is an AMD 486-133 so it runs Win95 decent enough.
A friend gave me 2 16MB 72-pin SIMMs which don't work. The mobo manual implies certain 72-pin chips would have to be single-sided and others double-sided. Looking at the SIMMs, there are chips on both sides so I assume they are "double-sided", and the manual doesn't show any combination that uses 16MB double-sided 72-pin chips, and I assume that's why it doesn't work.
The relevant pages from the mobo manual: first page, second page. Only certain combinations of memory will work, apparently, according to the manual. Overall specs on the mobo are here.
My question: should I try to trade what I have for 16MB "single-sided" 72-pin SIMMs, or do something else? The only combination that will let me use the 30-pin chips I already have is a 36MB setup that would require adding (1) 16MB single-sided 72-pin chip. I'm just trying to get at least 32MB of RAM in this thing as cheap as possible because I'm just going to donate it anyway.
Thanks in advance.