I have a microprocessor system (68000) that I think has suspect RAM, the thing loads up the OS from floppy disk (into RAM I assume) then throws an error that stops the show. It can stop as the OS gets loaded in, sometimes everything loads and runs correctly for half a sec before stopping on the error. My am thinking the RAM is faulty. PSU seems OK.
Syetem has run fine for years but progressivly started to throw the error, usually a reboot would sort it, but eventually it now stops every time.
My question is, can I check the RAM in my EPROM programmer by selecting a similar EPROM device?
The device under test is a NEC D43256AC = 32k x 8 static cmos ram so provided I find an identical EPROM with 5V programming voltage?? Or how else could I check the ram chips are OK?
It is easy to buy replacements but usual soldering mess looms.
Syetem has run fine for years but progressivly started to throw the error, usually a reboot would sort it, but eventually it now stops every time.
My question is, can I check the RAM in my EPROM programmer by selecting a similar EPROM device?
The device under test is a NEC D43256AC = 32k x 8 static cmos ram so provided I find an identical EPROM with 5V programming voltage?? Or how else could I check the ram chips are OK?
It is easy to buy replacements but usual soldering mess looms.