evil@arcturus.uucp (Wade Guthrie) (08/16/90)
I've gotten lots of replies (T*H*A*N*K*S), but (alas) none have worked
yet.
So far, the replies have said that it may be a bus speed problem
(I checked the motherboard jumpers -- all are set for maximum wait
states on both the 8-bit and 16-bit busses), or that the Adaptec
is pumping the disk/board too fast (I set the jumpers on the SCSI
board for maximum wait states -- goose egg).
The current theories go to the following:
- my memory is 80ns, and that may be too slow for 25MHz
operation,
- my hercules-compatible may be defective,
- I don't have the double-sigma 386 (that is going to
be fixed).
I've tried booting from floppy with no autoexec or config and running
a non-windows application -- it still doesn't work, so I've ruled out
a windows driver that is not compatible with my hardware config. The
next thing to try is writing some specific programs (My turbo C++ prof.
should be arriving any day now :->) to try to pinpoint the problem:
- allocate a huge array, and write quickly to sequential
memory locations for around 20 minutes, if it doesn't
hang, try random spots in the array,
- open a file (not fopen -- I don't want anything getting
in the way of fast file access) and continue to write
until I fill the disk, if this doesn't hang it,
- write directly to the hercules memory to fill the screen,
if this doesn't hang it,
- use bios calls to fill the hercules screen, if this doesn't
hang it,
ASK FOR MORE HELP ! (or ignore the problem)
Just thought you-all'd like the update.
--
Wade Guthrie (evil@arcturus.UUCP) | "He gasped in terror at what sounded
Rockwell International; Anaheim, CA | like a man trying to gargle while
My opinions, not my employer's. | fighting off a pack of wolves"
| Hitchhiker's Guidesmosher@big-bass.East.Sun.COM (Steve Mosher - Sun BOS Manufacturing Engineering) (08/18/90)
a low vcc can also cause the same problem. trying measuring the +5 on the board and tweek it to 5.00, and see what happens. my guess is that it would be less than nominal. Steve Mosher Sun Microsystems smosher@Sun.COM