OT: Slow booting, was re: Booting an IBM MP 3000 S/390 System

Josh Dersch derschjo at gmail.com
Thu Aug 6 22:20:29 CDT 2015

You might check whether the BIOS config is set to autodetect drives at startup; in many BIOSes each IDE channel can be set to Auto/None or a specific config.  Try setting all installed drives to a specific configuration, and any unused channels to None.  Autodetection can sometimes take a long time.  I also find that detection of cd/dvd drives is sometimes very slow...

(apologies for top-posting, responding on my phone which has a primitive editor...)

- Josh

-----Original Message-----
From: "Chuck Guzis" <cclist at sydex.com>
Sent: ‎8/‎6/‎2015 11:02 PM
To: "General at classiccmp.org" <General at classiccmp.org>; "Discussion at classiccmp.org:On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Subject: Re: OT: Slow booting, was re: Booting an IBM MP 3000 S/390 System

On 08/06/2015 06:24 PM, Jay Jaeger wrote:
> Aside from memory tests, in my experience, sometimes slowness can be
> caused by a disk controller ROM (often on a SCSI controller) that
> gets invoked during the POST that slows things down - particularly if
> it also enumerates what is on the SCSI bus.

Nope, same-oh, same-oh right down to a configuration with nothing more 
than a single IDE drive and a video card.    The diagnosis of 2GB memory 
is immediate and then the thing just sits for a minute or more before 
finally showing the configuration (attached drives, etc.)


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