Path: utzoo!telly!attcan!seachg!burke
From: burke@seachg.uucp (Michael Burke)
Newsgroups: comp.sys.ncr
Subject: Re: My Tower XP clock is slow
Message-ID: <1991Mar30.191005.11553@seachg.uucp>
Date: 30 Mar 91 19:10:05 GMT
References: <4886@lib.tmc.edu>
Reply-To: burke@seachg.UUCP (Michael Burke)
Organization: Sea Change Corporation, Mississauga, Ontario, Canada
Lines: 24

In article <4886@lib.tmc.edu> jmaynard@thesis1.med.uth.tmc.edu (Jay Maynard) writes:
>
>I checked the clock on my Tower XP this morning after it had been running
>for 6 weeks or slow, and found it about 7 hours slow. Is there an easy fix
>for this problem?
>

The Tower XP uses a "soft" clock to keep track of actual time. This "soft"
clock works ok (generally) as long as it does not miss too many interrupts
from the "hard" clock. On busy systems, one finds that the clock is a tad
slow over a couple of days. Your example, while favourable for the
reliability of the Tower XP, shows how bad the error can become.

We once looked providing a "fix" - the Tower XP actually has a TOD clock -
but we never got around to doing the work.
-- 
---
Michael Burke

Sea Change Corporation
6695 Millcreek Drive, Unit 8 
Mississauga, Ontario, Canada L5N 5R8
Tel: 416-542-9484  Fax: 416-542-9479
UUCP: ...!uunet!attcan!seachg!burke