For resolution 1280 x 1024 my CRT monitor maxes out @ 85 Hz vertical
refresh rate. Any higher refresh rate for this resolution and my monitor
gives me a basically blank screen containing the message "signal out of
range". I wait 15 seconds after that and the setting then returns to what
it was previously. 1280 x 1024 @ 85 Hz used to work just fine for me, until
I had to move out of my rented living accomodations, and into a house that I
actually co-own together with my sister since several years back.
Now, to answer your questions regarding trying the different settings,
first a preamble: In case you hadn't followed the other thread I posted in
this group, I need to explain: This house is located as close as any house
can be legally built to a major (three tower wide) high-voltage powerline
easement. In fact part of the easement spills right into my property. The
60 Hz AC current in these powerlines generates a weak, but significant
oscillating magnetic field which is just strong enough to distort and
disrupt CRT image performance that is not running at the same frequently of
60 Hz. That's is okay for viewing TV video (especially since one obviously
cannot typically change one's TV refresh rate from its factory preset of 60
Hz, even if one wanted to), but is kind of bothersome for the up close
viewing as when using a computer monitor. Thus I actually bought an LCD
monitor to side step this PL interference problem entirely for my daily
computer tasks. Anyway, back to the subject... In an effort to counter the
PL interference, I've experimented by temporarily setting my monitor to
(unacceptably) low resolution settings (e.g. 640 x 480) so as to be able to
achieve and test much higher refresh rates. What I've discovered is that at
refresh rates of around approx. 120 Hz and above, the interference on the
screen diminishes to a level that is barely perceptible.
While there is no CRT interference experienced at the 60 Hz setting, 60
Hz refresh rate is not acceptable for my main purpose here, in which, I'm
aiming be able to view high-quality, high-resolution, stereo 3-D
video --i.e. employing LCD shutter-glasses, etc. (My other purpose is to
use this CRT along side my LCD as a second monitor providing for an extended
Windows desktop.) High-quality, high-resolution, Stereo 3-D video will
actually require refresh rates of something above 120 Hz (e.g. 130 to 144
Hz) at resolutions ranging from 1024 x 768 up to 1280 x 1024. However, the
highest refresh rate I can achieve at a resolution that is the bare minimum
acceptable for my purposes here (i.e. 1024 x 768) is only 100 Hz. (BTW,
further to the above paragraph, 100 Hz provides some, although inadequate,
improvement in noticeable interference compared to the 85 Hz setting.) Of
course 100 Hz is far short of the 120 Hz refresh rates I'm going to need
here.

Now just to be clear here, I have in fact accepted the fact that in
order to get the kind of "high refresh rate to high resolution" performance
I'm after here I'm simply going to have to buy a good monitor that offers
this capability. In other words, I'm no longer entertaining the
"overclocking of my existing CRT monitor" idea. One monitor model
I'm thinking at the moment of possibly getting is a "22" (20" viewable)
iiyama HM204DT. It's video input bandwidth is 390 MHz. Displays 1280 x 1024
at 133 Hz... MSP: $699 USD. Hoping to find _equivalent_ (of at least as
good, if not better, value) alternative CRT products/models so that I can
at least do some comparison shopping here before taking the plunge. I'm
open to product suggestions from anyone here in this vein...

Ken


PS: Someone, I forget who, suggested that my monitor "resolution to
refresh rate" options were limited perhaps not by the monitor itself, but
by, either, my adapter card or its default settings (which supposedly, I
guess, might not occur to some people to change). This is not the case. I
have explored all the valid settings that my adapter provides. And while
it's hardly a very expensive adapter, according to its specs it is capable
of displaying, for example 1024 x 768 @ 150 Hz. If the monitor could only
keep up, such a setting would basically suffice.
Of course, to find an adapter card capable of displaying the higher
resolution of 1280 x 1024 at such a desired high refresh rate poses no
concern to me in any way, as such high performance adapter cards are, both,
quite affordable, as well as easy to shop for. Still, no use in buying one
of these until I get a CRT monitor that is capable of taking advantage of
the performance parameters which my choice of new adapter card will be
intended to support.

TIA,
Ken



"Phil Weldon" wrote in message
ink.net...
'Ken Moiarty' wrote:
| Well I think I get the gist of the answer to my query: "There's no
point".
| Based on all (which I didn't know until now) that would be involved, I
can
| of course only agree.
_____

Thanks for replying. Do try one of the modes I suggested and let us know
your results with the Viewsonic A90.

Phil Weldon

"Ken Moiarty" wrote in message
...
| Well I think I get the gist of the answer to my query: "There's no
point".
| Based on all (which I didn't know until now) that would be involved, I
can
| of course only agree.
|
| Thanks all,
| Ken
|
|