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Title: How many graphics cards does windows support? Post by: thisway on April 28, 2013, 11:10:44 PM Hey,
my setup has 5 cards. 4 are working just fine, but the 5th is showing an warning sign and says "Code 43" in the device manager. Is windows capable of running 5 cards at all or is it my setup? Thanks in advance to any help! EDIT: I have a MSI 790FX-GD70 (http://www.newegg.com/Product/Product.aspx?Item=N82E16813130223) motherboard and 5x7970 mounted on it. The motherboard supports 4x PCI-E x16 and 1x PCI-E x1. But still one card is showing Code 43. If I unplug another card, the card with error 43 starts to work. Im using windows 7 64x. I guess the motherboard is not capable of 5 cards. I guess the PCIe buses are somehow with shared resources. Title: Re: How many graphics cards does windows support? Post by: juggalodarkclow on April 29, 2013, 02:28:08 PM I believe Win 7 can support 8 GPU's. I think the 7970's are dual gpu's? Therefore 4 7970's = 8 gpu's.
https://bitcointalk.org/index.php?topic=11677.0 Title: Re: How many graphics cards does windows support? Post by: malevolent on April 29, 2013, 02:32:54 PM 7970 is a single core
7990 is a dual core Depending on the driver version, motherboard (and bios, cfg, sometimes the number of connected devices) it is possible to run up to 8 GPUs but sometimes there are problems with less than that. More than 8 GPUs may be possible in some circumstances but it's difficult and exotic enough that it's not worth mentioning as a practical mining solution. Title: Re: How many graphics cards does windows support? Post by: philips on April 29, 2013, 03:03:44 PM I have a MSI 790FX-GD70 (http://www.newegg.com/Product/Product.aspx?Item=N82E16813130223) motherboard................................. I guess the motherboard is not capable of 5 cards. I have 5 cards on the very same board and one is a dual GPU (AMD6990), so 6 GPU in total. |