HBX@psuvm.BITNET (08/09/85)
I recently purcased an AT&T 6300, and for reasons of compatibility
with existing software, must run IBM's PC-DOS rather than use
Microsoft MS-DOS 2.11 for the 6300. To date everything has worked
well, (I am using the newest revision of the BIOS, Ver. 1.21.),
except for one thing. The system clock gains time. If I set
the time correctly when I boot, leave the system unattended for
a few hours and then check the time, it may gain as much as
15 minutes. Can anyone else confirm this, and does anyone
have a fix?
Terry Harrison
310 Business Administration Building
Penn State University
University Park, PA 16802
(814) 863-3357
BITNET: hbx@psuvm
UUCP: ....!psuvax1!psuvm.bitnet!hbx
ARPA hbx%psuvm.bitnet@wscvm.arpa
gnome@olivee.UUCP (Gary Traveis) (08/14/85)
> I recently purcased an AT&T 6300, and for reasons of compatibility > with existing software, must run IBM's PC-DOS rather than use > Microsoft MS-DOS 2.11 for the 6300. To date everything has worked > well, (I am using the newest revision of the BIOS, Ver. 1.21.), > except for one thing. The system clock gains time. If I set > the time correctly when I boot, leave the system unattended for > a few hours and then check the time, it may gain as much as > 15 minutes. Can anyone else confirm this, and does anyone > have a fix? > > Terry Harrison > 310 Business Administration Building > Penn State University > University Park, PA 16802 > (814) 863-3357 > > BITNET: hbx@psuvm > UUCP: ....!psuvax1!psuvm.bitnet!hbx > ARPA hbx%psuvm.bitnet@wscvm.arpa > The ATT 6300 has an on-board CMOS battery backed-up clock. PC-DOS doesn't make use of that circuit, and because that 6300 runs a lot faster than an XT, the software clock gets ahead pretty quickly. See if you can do set/reads from the hardware clock. Gary (hplabs,allegra,ihnp4)oliveb!olivee!gnome @Olivetti ATC, Cupertino, CA -- where the 6300 was designed.