problem setting up second gpu! PLZ HELP!!!1!1

[yigga]

have a hd5770 running on my mainboard (asrock k10n78FullHD-hSLI with latest BIOS) in the pci-e x16 slot. (first monitor connected to this gpu DVI) this card runs fine @ 215MH/s

now i wanted to put another hd 5770 in the pci-e x1 slot (with a raiser 1x to 16x) but my win7 64bit wont recognise the second gpu. I have a tft connected to the second card as well with a VGA to DVI adapter.

What am I doing wrong? couldnt find anything. Or is it simply impossible to connect an other gpu?

oh, and the second card doesnt show up in harwaremanager...and its not possible to enable second screen in diplay properties

please!!! any ideas?

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[carbolic]

More exclamation points please. !!!1!!!!!

Anyway, the DVI to VGA adapter by itself won't help. That's just a few wires connecting the VGA pins to the appropriate DVI pins.

What you need is to fool the computer into thinking a monitor is attached. you can use another monitor, or a KVM switch, or a dummy plug.

Make your own dummy plug like this: http://blog.zorinaq.com/?e=11

read more in this forum thread: https://forum.bitcoin.org/index.php?topic=16816.0

[yigga]

thx alot!!!!1!
i will get some transistors and try!

(i love doing the !!!!1! thingy)

[yigga]

dummy plug didnt work!

any other suggestions?

isnt it weird, that the card doesnt show up in the harware manager? not even with a questionmark.

[Sannyasi]

probably a stupid question but..... did you remember to plug the power supply into it? I had an idiot moment that lasted an hour or so accompanied by sheer panic a few months ago when i was messing around in my case. I forgot to plug the PSU connectors back into the card, I thought I'd ruined my card..... thankfully it's still healthy and mining full swing atm with it's lil bro 5770

Otherwise I'd guess the card's bad if a dummy plug didn't work. Hope you get it resolved