In october I wrote that I had some problems with my Xt.
It gave a Parity Check !
80000 (S)
Bob told me that:
SU>If you press the ram firmly into their sockets, this error might
SU>disappear. It's possible that 640K is installed, but one chip is
SU>bad on the highest numbered bank. You can try replacing the whole
SU>bank with a bank from an identical XT.
As I do not have another XT at hand and certainly no identical ;-(, I had
finally a careful look at the banks.
First I have pressed them firmly in their sockets, no change.
Than I took the bank 3 out (highest bank?) and put the chips back. No
result. Than I exchanged the chips with a set I had from my first 286 but
that did not do any good.
Reading below the banks I found following info. Bank 0 and 1 -4164/ 41256
Bank 2 and 3 4164 only. As the chips of the 286 where 256 chips I can
imagine that that was the cause the XT did not work. I assume that the
chips I need are 64 chips with any number combination in front. Am I right
there? What does this 41 before the 64 tell an expert?
In the bank I find the chips numbered from 0 to 7 with the last chip
lettered P. If I only have 512 kb at booting, does that mean that a whole
bank (bank 3 ?) is not functioning? Is there a way to spot the misbehaving
chip? And if so then what?
Could I replace the whole row with chips of another production as long as
they are 64's ?
Anyhow, how can you calculate the memory. 16 chips with 256 (?) makes 4096.
16 with 64 1024, totaling 5120 (what ?) How does that translate into the
available memory?
If I save time, when do I get it back?
Net-Tamer V 1.12 Beta - Registered
To unsubscribe from SURVPC send a message to [EMAIL PROTECTED] with
unsubscribe SURVPC in the body of the message.
Also, trim this footer from any quoted replies.
