Hi,
I am having 2 reference GTX 980's in SLI on a MSI X99S SLI PLUS (MSI Link) board with an i7 5930K (Intel Link).
Problem with that is, that I have to use the two top PCIe slots to get advantage of x16 Link Speed I think - Documentation screenshot. But there is no real space then between the cards. Under full load, temps of one card is topping around 86°C.
First question, I've read that when the GTX 980 hits 80°C, it downclocks based on the NVIDIA Boost 2.0 algorithm - is that true?
Second, to improve airflow on a SLI system with the cards so close to each other - does it make sense to get rid of the removable part of the backplate (the one that is meant for situations like this) on both cards or just on one? If just one, which of both? And how about removing the whole backplate from the card that is blocking the fan of the other?
Right now I have the tiny plate (not full one) removed on both (CPU exhaust goes directly out the case) - max temp of one card when benchmarking via Unigine Valley )which uses both cards) is now maxed at 83°C.
Third question - I´ve plugged in my two displays on the bottom card (the one, where the fan is not blocked by the other). I thought that the system might emphasizes on using this card when doing something that is not utilizing SLI. Is there a way to improve the usage for all situations (non-SLI and SLI) to decrease temps? Maybe with changing from the automated PhysX-processor choosing to something specific or so?
Fourth - I am having a similar SLI-bridge like this one from MSI (Picture of a SLI configuration). But mine is connecting the cards on the left pin, not the right one like seen here. Does this make any difference? Furthermore, is there any advantage to have both pins of both cards connected with each other by a second SLI-connector?
Last but not least - what is the maximum RPM for the fans to maybe finetune the cooling? And do you have any additional tips to decrease temps while keeping performance?
Thanks a bunch in advance!
Regards,
eC
I am having 2 reference GTX 980's in SLI on a MSI X99S SLI PLUS (MSI Link) board with an i7 5930K (Intel Link).
Problem with that is, that I have to use the two top PCIe slots to get advantage of x16 Link Speed I think - Documentation screenshot. But there is no real space then between the cards. Under full load, temps of one card is topping around 86°C.
First question, I've read that when the GTX 980 hits 80°C, it downclocks based on the NVIDIA Boost 2.0 algorithm - is that true?
Second, to improve airflow on a SLI system with the cards so close to each other - does it make sense to get rid of the removable part of the backplate (the one that is meant for situations like this) on both cards or just on one? If just one, which of both? And how about removing the whole backplate from the card that is blocking the fan of the other?
Right now I have the tiny plate (not full one) removed on both (CPU exhaust goes directly out the case) - max temp of one card when benchmarking via Unigine Valley )which uses both cards) is now maxed at 83°C.
Third question - I´ve plugged in my two displays on the bottom card (the one, where the fan is not blocked by the other). I thought that the system might emphasizes on using this card when doing something that is not utilizing SLI. Is there a way to improve the usage for all situations (non-SLI and SLI) to decrease temps? Maybe with changing from the automated PhysX-processor choosing to something specific or so?
Fourth - I am having a similar SLI-bridge like this one from MSI (Picture of a SLI configuration). But mine is connecting the cards on the left pin, not the right one like seen here. Does this make any difference? Furthermore, is there any advantage to have both pins of both cards connected with each other by a second SLI-connector?
Last but not least - what is the maximum RPM for the fans to maybe finetune the cooling? And do you have any additional tips to decrease temps while keeping performance?
Thanks a bunch in advance!
Regards,
eC
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