Forum Home
Press F1
 
Thread ID: 48149 2004-08-15 09:38:00 Refresh Rate taxboy4 (579) Press F1
Post ID Timestamp Content User
262008 2004-08-15 11:13:00 Well It seems I have made a mistake.

My monitor can actually handle up to 160Hz, but only 85Hz horizontal.

Hmmmmmmm.
Growly (6)
262009 2004-08-15 11:18:00 I think you will find it is the vertical that is the critical one. mikebartnz (21)
262010 2004-08-15 11:52:00 .... I knew that, I was merely unsure of my monitor's specifications. Growly (6)
262011 2004-08-16 05:32:00 > Billy T can tell us whether that is true or not, but
> what I do know is that in the days when there were
> separate/discrete driver transistors mounted on heat
> sinks, they tended to be the components having a
> fairly high failure rate, and/or dry joint failure
> due to heating, causing loss of a colour.

Hmmmm.........

Refresh rate increases probably wouldn't hurt the video drivers as they are primarily voltage switches. What might die could be the vertical output amplifiers as the change in duty cycle might increase the average current and cause overheating.

You can also kill a horizontal output stage by trying to change the scan speed to a frequency outside its design parameters. It will go off-resonance and this will load up the output stage and that may also be goodnight nurse for the poor old monitor.

The horizontal and vertical scan speeds are linked so that's two reasons for not trying to drive the poor thing outside its stated maximum refresh rate. The horizontal scan frequency can vary from 31.5 kHz up to 90 kHz or more depending on the resolution and refresh rate chosen.

Cheers

Billy 8-{)
Billy T (70)
262012 2004-08-16 05:44:00 i generally run mine at 60hz, as this is better for gaming and benchmarking (less likely to get screen tears when the framerates drop below the refresh rate), but i dont really notice any difference going up to 85hz, everyting just seems to get slightly smaller lagbort (5041)
1 2