Re: RAM Errors

[mjmahon@aol.com (Michael J. Mahon)]

MechCD" vg wrote:

>I finally decided to try out my "new" Apple IIe I pulled from the school's
>dumpster in June. It's in physically better shape than my other non working
>Apple IIe.
>
>I fired it up, and it beeps, shows the Apple ][ title, and attempts to boot
>from the duodrive. I tried a few disks and it started barfing errors at me.
>I tried the built-in test and it shows:
>
>RAM: F13 F2 F11 F10 F9 F8 F7 F6
>
>It doesn't show colors or patterns except for a small broken vertical line
>before giving that message. I recall my other IIe's showing color blocks and
>patterns before saying System OK.
>
>I'm guesing I have quite a few bad RAM chips. Since its a series of chips,
>could it be possible that another chip somewhere is causing this? I have an
>entire working IIe board to steal chips from, but I'd rather not replace all
>the ram chips if something else is the cause.

Unless something *BAD* has happened to this //e, it is very unlikely
to have a bunch of bad DRAM chips.

First, try "skootching up" and re-seating all the socketed chips on
the main board (careful, don't pry under the _sockets_, just the chips ;-).
Also unplug and re-plug the power supply.

Then re-run the diagnostic.

-michael

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