> >Sounds like your "dynamic refresh" of RAM is failing. (The 8088
> >- in fact, all Intel CPUs - automatically produce a refresh cycle
> >for RAM. (A dummy address-refresh cycle reads all addresses
> >sequentially, but does nothing with the information read. It is
> >transparent to the user, and is there ONLY to refresh dynamic RAM.)
Wrong.
8088 does not produce any refresh cycle. In older 8088 DMA channel 0 is used
for it. These refresh cycle start after 72 bus clocks. This means system bus
is used 7% for memory refresh. Chip involved in DRAM refresh cycle is
8237-5.
> >I have no idea what the "(s)" means, but the "60000" is hex address
> >where parity went bad. Bring up debug, then WRITE "00" (not "FF")
> >at 6:0000 - 6:FFFF. Wait 30 seconds or so, then DUMP 6:0000.
> >If they don't show "00" in all locations, that block is losing it.
> >(Don't use "FF" - that's the response of empty memory blocks, as in
> >"E000:0"...)
If an memory parity error is detect computer does not start. If it started
it will hang up.
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