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.
- AHA2840 (aic7xxx.o) SCSI card and HD that crashes the system when loaded,
so currently ignored
- floppy runs through the SCSI card, refuses through the IDE card. Seems to
run ok.
- 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?
Any suggestions on boot image installation, SCSI operation or CPU speed are
appreciated.
Drew
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Mikkel L. Ellertson
Sent: Friday, January 12, 2001 6:42 PM
To: RedHat general mailling list
Subject: Re: Speed optimization for 486DX
On Fri, 12 Jan 2001, Drew Hunt wrote:
> I'm going to attempt to run a DNS server on an old 486DX with 64MB RAM.
> However, with the current setup it runs really slowly. It's running a
fresh
> RH7.0 install with all of the package updates. I couldn't get
/proc/cpuinfo
> to reveal the clock speed, but bogomips are sluggish, around 8. Seems
> really slow for a 100 MHz chip. What can I do to get this machine up to
> speed? And what's with the AuthenticAMD label? This is an intel chip.
>
Are you sure it is an Intel chip, and not an AMD chip?
>
> Also, I couldn't figure out how to wire the Turbo switch. Will the chip
> default to max speed if I just don't wire it?
>
That depends on the motherboard/BIOS. Sometimes the BIOS will have a
setting to override the turbo setting, so that the machine will run full
speed regardless of the switch setting. With no connection to the turbo
contacts, and no BIOS override, there is no telling what the will
happen. What I would do is put a jumper on the turdo jack. Try it on the
center and one side pin, check the system speed, and then try it on the
center and the other pin, and check again. Leave it where the system runs
the fastest, and forget the switch. You don't want someone changing the
system speed on you.
>
> Drew
> [EMAIL PROTECTED]
>
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