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Flickery monitors

M

Michael C

Jan 1, 1970
0
Hi Peoples,

I have a dental surgery with 3 monitors running off the 1 PC via a power
splitter. The problem is that the monitors flicker when something is
turned on (probably the air con). The problem appears to be
interference, not dirty power as running the monitors off a UPS didn't
help. What I'm wondering is will switching over to use DVI solve the
problem? Is there any other way to solve the issue? Currently there are
3 17" LCD monitors running at 1024x768 at 60Hz. Because the cables
needed to go through the walls the ends had to be cut off and reattached
so the filters are missing on some ends and the plugs on the end are not
quite as good as a manufactured one of course.

What I was thinking was switching to a DVI vga card, running a DVI
splitter and then using DVI to HDMI adaptors to run HDMI cables through
the surgery. Then at the other end convert it back to DVI. Before
spending the cash on new cabling + 2 new monitors (only 1 has DVI) I'm
wondering on opinions as to whether this is likely to solve the problem.

Thanks in advance,
Michael C
 
T

Trevor Wilson

Jan 1, 1970
0
Michael C said:
Hi Peoples,

I have a dental surgery with 3 monitors running off the 1 PC via a power
splitter. The problem is that the monitors flicker when something is
turned on (probably the air con). The problem appears to be
interference, not dirty power as running the monitors off a UPS didn't
help. What I'm wondering is will switching over to use DVI solve the
problem? Is there any other way to solve the issue? Currently there are
3 17" LCD monitors running at 1024x768 at 60Hz. Because the cables
needed to go through the walls the ends had to be cut off and reattached
so the filters are missing on some ends and the plugs on the end are not
quite as good as a manufactured one of course.

What I was thinking was switching to a DVI vga card, running a DVI
splitter and then using DVI to HDMI adaptors to run HDMI cables through
the surgery. Then at the other end convert it back to DVI. Before
spending the cash on new cabling + 2 new monitors (only 1 has DVI) I'm
wondering on opinions as to whether this is likely to solve the problem.

**Switching to DVI might help. Or not. You really need to keep those ferrite
toroids for decent performance. You also MUST use decent cables, if the runs
are long. The difference in quality between cables running analogue signals
can be substantial.
 
M

moffie

Jan 1, 1970
0
B

Bob Larter

Jan 1, 1970
0
moffie said:
The flickering is caused by the low refresh rate 60hz , i would up it to
75hz

You can't do that on LCDs.
 
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