andrew_241
Member
Hello!
As I mentioned in this thread, I've built a 286 computer. I went and got some DRAM chips (4C1024E-10 18-Pin DIP, 1M x 1, 5V, made by Micron, 36 in total) for onboard memory of 4 MB. Unfortunately, when I powered on the system, the screen did not come up, so I connected the speaker, and heard a repeating series of three short beeps. The board, a BAM/12S, is equipped with an AMI BIOS. According to this, the beep code I'm encountering means 'Base 64K memory failure'. I've tried removing all the chips, replacing the first chip in bank zero with other chips, and leaving only bank one filled. I'm starting to think that maybe the DRAMs I got are incompatible with the board. According to the manual, I need 411000-10 type DRAMs. In another thread, I find that 511000 is a compatible part, and according to this, the Micron 4C1024 is an equivalent part.
So assuming the memory is the wrong type (I don't know what else could be wrong, as I've checked and double checked that all the jumpers in the system have been set properly), where could I get actual 411000s?
Thanks!
As I mentioned in this thread, I've built a 286 computer. I went and got some DRAM chips (4C1024E-10 18-Pin DIP, 1M x 1, 5V, made by Micron, 36 in total) for onboard memory of 4 MB. Unfortunately, when I powered on the system, the screen did not come up, so I connected the speaker, and heard a repeating series of three short beeps. The board, a BAM/12S, is equipped with an AMI BIOS. According to this, the beep code I'm encountering means 'Base 64K memory failure'. I've tried removing all the chips, replacing the first chip in bank zero with other chips, and leaving only bank one filled. I'm starting to think that maybe the DRAMs I got are incompatible with the board. According to the manual, I need 411000-10 type DRAMs. In another thread, I find that 511000 is a compatible part, and according to this, the Micron 4C1024 is an equivalent part.
So assuming the memory is the wrong type (I don't know what else could be wrong, as I've checked and double checked that all the jumpers in the system have been set properly), where could I get actual 411000s?
Thanks!