Re: TransWarp GS self-test got Cache RAM ** Failed ** 3

[AiGEEK <witton.leung@gmail.com>]

On 4月25日, 下午6时27分, Linards Ticmanis <ticma...@gmx.de> wrote:
> Shouldn't it complain already for $00 fill or $ff fill if there is a
> bent pin?
>
> I don't have a IIgs, but in PC memory tests, errors in walking bits
> usually point to an internal isolation failure between two bit cells in
> a RAM chip.

I do have some query about the representation...

1. when cold open IIGS w/ TWGS, and come to self-test immediately,
it's can pass all test one or two time(s).

2. I have replaced all three cache RAM chips with new set.

Since I'm not familiar with all setting on this full loaded ROM01 IIGS
(sniped on ebay in 2003 and has been packed late ), I'd like to have a
todo list:

a. Remove all other cards, such as FastRAM SCSI Rev.C etc, try self-
test;

b. Then try several setting of TWGS, and self-test;

c. Or finally, replace the original 8K cache board and ROM chip, self-
test to confirm the TWGS board is working correctly itself.