HD 3000 card allows custom of 1920x1080, refresh @ 90hz with timing standard CVT-RB. Any possibility of damaging graphics card or monitor? I just noticed even if graphics card is set to 90hz my Sony AVR is probably limiting refresh rate at 60hz.

[WCall]

[n_scott_pearson]

Typically, the package will not allow any refresh rates that are not also supported by the monitor connected. I have, however, seen cases where the monitor reports this incorrectly. Just my opinion, but I would stick with 60Hz unless you can verify that the monitor (and any other devices in the chain) supports it.

Hope this helps,

...S