I got my add2 card today pluged it in and got nothing, I then went into displays and told it to detect displays, my monitor went blank the second monitor attached to the onboard port did not come on.

I have 2 21" sony tubes I use a DVI to VGA adapter on my XP box with a Radeon card with no problems.


I added another drive and tried to do a fresh install, would come to a blank blue screen but I could see the mouse cursor and could move it off the screen on the left side.

What I think you have to have is a LCD panel that does have DVI, I dont think the converters work with the ADD2 board.

Can anyone with an LCD panel and DVI and an ADD2 card confirm if it works for you in a dual display mode.

Just checking. So do you have the SIIG Orion one? I've seen a unch of ADD2-N PCI-e cards out there (although Apple seems to have the 'original' SIIG part in their dev boxes).

I have the PixelView CH7307. What I have found out is that ADD2 cards do not pass the analog signal in addition to the digtal like most cards do. I will be borrowing a LCD panel with DVI tomarrow to test dual support.

I recall reading somewhere that the Silicon Image Orion ADD2-N cards were DVI-D only, not DVI-I. So, no analog data. If I ever get a Dev Kit clone PC together, I'll try and buy one and see if it will work with my Apple 23" Cinema HD Display (via my DVI-to-ADC adapter).

http://www.techsupply.co.nz/product_info.p...oducts_id/30619

That page would seem to imply no analog support via the adapter...

i can confirm that dual-monitor is possible. i have an intel D915GUXL with the silicon image orion card in the PCI-e X16 slot. hooked the TFT via DVI-D to the ADD2 card, plugged the 20" CRT to the onboard VGA, works like on any other mac ;-)

Yeah dual monitor is fine, but if you need 2x-VGA you are in trouble unless you purchase a PCI card to drop in (so no qe and ci on that one), or put in some dual output PCI-e vid card, but again the same caveat. The ADD2-n stuff only outputs to DVI-D.

Wish they weren't so cheap at work....2 LCDs is nice, but both are VGA here. hehe

Anyone knows, if the ADD2 card is compatible with i945G aswell? (GMA 950)

yup, works for me. no problems so far.

Do any of you have a TV out/DVI card.. I'm looking around for a TV out option and it's down to either an ASUS ADD2 card with DVI and TV out or a VGA-TV converter breakout box...
Adding a second Video card is too expensive for me.

I'm looking to upgrade to LCD at some stage so the DVI is required for down the track, just want to confirm that "TV out" of the ADD2 card is supported by MacOS.

ADD2 Works with 945G as well.

Working great on a 945GNT w/ the 950 GMA Graphics. Dual display, VGA and DVI-D.

See my reply about no tv-out. I picked up an add2 card w/ s-video out so I could get tv-out but I can't get osx86 to see the tv/display. Any ideas? It works fine in XP so I know the add2 is properly converting to NTSC.

intel 945 confirmed with add2 card. dvi-d and vga. as for you ledy, dont take my word for it but if its anything like my laptops vga/s-video card thats buil-in, you may have to short out a couple of pins to get either one to work.

Can you expand on this? Is there another post somewhere which talks about this sort of thing that I missed? I vaguely remember people talking about tweaking the pins on other posts but can't remember what the exact topic was.

Thanks.