Multiple 5830s, "dummy plugs" and Windows

[noedaRDH]

Hi there folks,

I'm in the process of building a mining rig right now with just 2x5830.

I'll be installing either Vista or XP on it. I can't go with Linux since I've never used that before and this PC will be used by people in my family who are not tech savvy.

Should I go with Vista (64) or XP?

I've also read that it is best to disable crossfire to get the best hashrate.

But I've also heard that without a crossfire connector, I'll need to connect both monitors to get both cards working or use a dummy plug.

Is this an issue with certain versions of Windows?

Thanks guys. I appreciate any feedback.

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[taris]

As long as i know this issue is on all windows versions.
Linux systems do not have this problem though.

[ignoringpeople]

Use windows and put in dummy plugs. Its easy and safe...takes like 30 seconds to make one.

[Husband]

I tried using dummy plugs with various resistors I bought ranging between 70 and 120ohms, and whenever I enable crossfire on my cards the system blue screens and reboots right away.

Has anyone else seen this issue before? Do you have to be using the exact same resistors? I followeded the steps of the following article to the T:

http://www.overclock.net/folding-home-guides-tutorials/384733-30-second-dummy-plug.html

[bitcoinaddict]

Don't use crossfire at all