BGoins12
Experienced Member
Ok, so it seems that no matter how hard I try, I cannot get this computer to properly recognize memory. I purchased the correct memory I needed for it; 4 x 9 chip 30 pin SIMMs that are 1MB each. There is already 1MB on board, so with the 4MB, it totals out to 5MB. The memory was sold tested as working.
In the BIOS, you have a few choices for memory. It allows 1MB (original config onboard), 2MB (4 x 256k SIMMs, plus onboard) and 5MB (4 x 1MB SIMMs, plus onboard).
THEN it also allows to have EMS turned on or off. Here's where the problems come in.
With the extra memory installed or removed, disabling EMS renders the computer useless (won't boot into DOS off the HD, or even off of a boot floppy, I've tried multiple), but allows it to recognize the memory. With EMS turned on, none of the expanded memory is recognized, and it essentially ignores it, but it boots fine... only recognizing 640k of the 1MB onboard memory. This is totally throwing me off, as I have never experienced something like this before.
Is there something I am missing here? There ARE 2 DIP switches on the back of the computer, but I have no clue what they are for, as I cannot find a user's manual anywhere online for this. I have also pulled this computer apart entirely to check for issues, and haven't found any. All the capacitors are good and not leaking, and I do not see any issues with any other components.
Hopefully someone can help... this is driving me nuts!
EDIT - If this helps, this computer was also known as the Mitsuba Ninja 12.
In the BIOS, you have a few choices for memory. It allows 1MB (original config onboard), 2MB (4 x 256k SIMMs, plus onboard) and 5MB (4 x 1MB SIMMs, plus onboard).
THEN it also allows to have EMS turned on or off. Here's where the problems come in.
With the extra memory installed or removed, disabling EMS renders the computer useless (won't boot into DOS off the HD, or even off of a boot floppy, I've tried multiple), but allows it to recognize the memory. With EMS turned on, none of the expanded memory is recognized, and it essentially ignores it, but it boots fine... only recognizing 640k of the 1MB onboard memory. This is totally throwing me off, as I have never experienced something like this before.
Is there something I am missing here? There ARE 2 DIP switches on the back of the computer, but I have no clue what they are for, as I cannot find a user's manual anywhere online for this. I have also pulled this computer apart entirely to check for issues, and haven't found any. All the capacitors are good and not leaking, and I do not see any issues with any other components.
Hopefully someone can help... this is driving me nuts!
EDIT - If this helps, this computer was also known as the Mitsuba Ninja 12.
Last edited: