Thanks for the kind words, Ed! I'm on a really short budget, so I have to
use whatever junk I've got lying around. :)
If VLB means Vesa Long Bus, then yes, that would describe the SCSI adapter.
It worked under slackware and RH 6.0, but magically started barfing up at
boot when I went to 6.2 and up. Also (ifyou can believe it) had Windows 95
and 98 on it until I opted for Linux. I usually started booting when I got
up and it would be done by the time I was finished with shower and
breakfast. Chug chug chug.
I didn't know about the jumpered floppy drivers. I'll have to look over
that more closely. If I can get the IDE floppy driver working, great. Then
i can remove the scsi card and not worry about it. But I was kinda hoping
to get the speed gains from using the scsi drive and use the ide hd in a
nice little RAID setup. Oh well.
About the installation, I used the network boot disk image created with
rawrite in DOS. I wiped the HD clean with disk druid and did a fresh RH 7.0
FTP install. Worked great, even though it took 10 hours!
Hope this info helps. I'll look at the floppy jumpers later today.
Thanks,
Drew
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Edward Dekkers
Sent: Tuesday, January 16, 2001 12:55 AM
To: [EMAIL PROTECTED]
Subject: Re: Speed optimization for 486DX
> Well, good news and bad news. Good news, I found and jumpered the turbo
> pins. Bad news, it changed nothing. Bogomips is still at 7.91 and it
still
> takes 10-15 minutes to boot the system. Could it be something else? I'm
> having some other hardward problems with that machine.
Drew, I feel for you and admire that you're still trying. I would have
turfed a computer who did this to me!
Check your BIOS settings. I've seen 486 boards which actually do allow
disabling of internal and external caches. Make sure all that kind of stuff
is on.
If the external cache IS on and the machine is doing weird things - turn it
off. It wouldn't be the first time I've seen cache RAM go bad on a board.
>
> - AHA2840 (aic7xxx.o) SCSI card and HD that crashes the system when
loaded,
> so currently ignored
Isn't that a VLB card? I've never ever seen problems with that one. In fact,
one of my customers is running that card in his Linux box.
> - floppy runs through the SCSI card, refuses through the IDE card. Seems
to
> run ok.
Probably conflicting. When the SCSI floppy interface is enabled, you should
disable the one on the IDE card and vice versa. The IDE card one is probably
set by jumpers, and the SCSI from memory is set by DIP switches. I would
disable the SCSI one and run the IDE one instead, but it's up to you. Don't
forget plug and play on ISA devices is iffy, and they will gladly fight for
IRQs and conflict with each other. Make sure you know what device is using
what IRQ.
> - even during install, never could get the boot image to work (boot-bit on
> MBR, supposedly) on the ide HD, so it has to boot from a floppy. Have
> fiddled with lilo.conf and fun lilo many times to no avail. BIOS shows
> error "no operating system detected". Obviously, this slows the up time a
> bit, but will this affect the processor speed?
No, it should have nothing to do with processor speed. Where did you get the
boot image for the install?
Did you use rawrite?
> Any suggestions on boot image installation, SCSI operation or CPU speed
are
> appreciated.
I'm curiuos now, time to get this sorted!
--
Edward Dekkers (Director)
Triple D Computer Services Pty. Ltd.
822 Rowley Road
Oakford W.A. 6121
+61 8 9397-1040
ABN: 33 635 238 024
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