[quote name=“svennand” post=“52112” timestamp=“1389706758”]
[quote author=Morderchai link=topic=6885.msg52109#msg52109 date=1389705967]
[quote author=svennand link=topic=6885.msg52104#msg52104 date=1389704223]
(except for me needing dummy plugs on the Asus cards, not sure if this is driver related, the sapphire cards worked without dummys)
[/quote]
Noob question maybe but, what on earth are dummy plugs? :o
[/quote]
In windows, if you have multiple cards, when mining crypto it will only utilize your main card (the bootup screen one that had an monitor plugged in), the rest will just sit idle.
so for example my 280X cards give 760Khash, but only on 1/3 cards, the two other hash at 80khash cause they are “idle”. Dunno of this is for all windows versions/amd driver versions.
But on windows 8/amd 13.12 it happened with my asus cards (sapphire ones worked without though)
An dummy plug is something you make to fool the system into thinking that an GPU has a monitor plugged in.
Basiclly you take an DVI-I (IMPORTANT NOT TO USE DVI-D cause it lack the correct pins!), and put in 68 or 75ohm resistors in between 3 pair of holes. Voila it now looks like a monitor is plugged in for the GPU
[img]http://homepage.ntlworld.com/zath.ras/pic/dummy-1.jpg[/img]
That way all the cards will run 100%
[/quote]
Haha that is brilliant! I would probably buy 3 screens to get them all working :-[
