Re: Apple IIgs random hardware crashing - any ideas?

[ToasterKing <toasterking@SPLATbigfoot.com>]

In article <3F816FFC.8000803@apple2.com>, Ed Eastman <ed@apple2.com>
wrote:

> ToasterKing wrote:
>  > o Occasionally on power-up, a checkerboard pattern on video and no boot
> ...
>  > My hardware is set up as follows:
> ...
>  > - TransWarp GS accelerator in Slot 3, modified with v1.8 ROM, 14 MHz
>  > Sanyo-designed 65816, 32K cache SRAMs, 40 MHz oscillator for 10 MHz
>  > clock
> 
> 
> Turn it off all pieces of your IIgs system. Open the lid and touch the 
> big metal box inside, then unplug the IIgs.
> 
> Skootch up and then press down on the CPU connector for your transwarp 
> accelerator and make sure it is seated properly to the motherboard's CPU 
> socket.  All of this smacks of your accelerator not making a good 
> connection to the CPU socket.
> 
> Thankx,
> Ec

Ed,

Thanks very much for your input.  Perhaps I didn't make it clear in my
descriptions, but I also have the same problem with the GS after
removing the TWGS and replacing the original 40-pin DIP 2.8 MHz 65816
CPU in the CPU socket, effectively reverting the machine to using a
"stock" IIgs CPU.  Also after removing all other cards and peripherals,
including memory expansion, I still have the problem.

Since I still have the problem after removing the accelerator, I can't
isolate the problem to the accelerator itself.  This drove me crazy for
a while, because I was convinced that my TWGS had some logic problem
because the GS worked fine after I removed it, but later on the
symptoms reappeared for no apparent reason -- they are that
intermittent.

I appreciate your reply!

-- 
<<Please remove the word "SPLAT" from either below address to use it.>>
             Email:  mailto:ToasterKing@SPLATbigfoot.com
       Visit ToasterKingdom at http://SPLATtoasterking.tripod.com/