Hi I have a 486 with what looks like slots for cache on the motherboard. Would this help performance at all? where can i get the needed chips for this? I am a noob.
Also I was given another 486 and i got the drives to be recognized but I get the error : I/O error
Any ideas what causes that?
I have another question. In DOS I get an error when trying to start some games like Maniac Mansion. "This program is too large to fit in memory"
but it opens fine in windows. Whats the issue?
Yes, those are likely to be sockets (not slots) for cache chips. Yes, the performance would improve. Chips can be found on ebay for example, (although the last time I ordered some I was sent fakes.) What motherboard do you have? Is there any brand/model name anywhere? If not, can you post a picture showing the whole board?
I/O Error can be due to many things. At what part of the boot do you see that? Can you post a picture of the screen?
"Too large to fit in memory" means that the config. sys file needs to be changed to give more conventional memory to programs. It's possible to fix it but I suggest that you keep running it from windows for now.
In MS-DOS type and send a screenshot:
mem /c /p
From your board, please send a picture where we can see more.
However, it looks like it supports standard 256k cache in 2 rows.
The difference from no L2 cache to some L2 cache is significant.
Depending on your timings L2 can either be slower or quite a bit faster than no 2nd level cache.
Seek rams in DIP format on ebay - 32KiB/15ns ones are the most common.
amadeus777999 wrote on 2025-03-26, 08:23:32KiB/15ns ones are the most common.
This is true. 32KiB chips are usually designated as "32K x 8" (32 KiAdresses, each having 8 bits). Be aware the cache chip model numbers typically include the size in kilobits, not kilobytes, so typical model numbers look similar to 61256.
