3 Nov
2009
3 Nov
'09
2:24 p.m.
On Tue, 3 Nov 2009, Sridhar Ayengar wrote:
That's weird. I never had to do anything like
that... I just had
HIMEM.SYS in the CONFIG.SYS of my PS/2 Model 50 (1MB RAM, 286 at 10MHz),
and it Just Worked(tm).
Doesn't the 50 default to 640K at 0h and 384K at 10000h?
Or is 384K just unavailable in real mode?
In August 1991, I tried to install beta 3.10 on a TI "Travelmate"
(at Microsoft Developer's Conference) I was the apparently the first, of
eventually millions of people, to complain about it turning on
write-caching. Some of the MICROS~1 staff told me that the installation
failure was explicitly due to HIMEM.SYS not having access to anything
above 1 MB. Until now, I never had any reason to doubt their explanation.
I only had one 80286 machine that gave me a choice of where that 384K was
going to be, and it also failed to install with the 1MB being contiguous.