I recently bought a EVGA gtx 1070 sc black edition but ever since i put it in if i have the pcie slot set to be 3.0 the card cant run games at all. But if i put it too 2.0 it works just fine. Also my gtx 970 was running 3.0 just fine before i put in the new card, but when i put the 970 back in it is having the same issues as the 1070 and can only really run well on 2.0. 3.0 will run well if my computer never goes to sleep. if i do a full boot i have to restart my computer and it will run fine for a bit. as a result i have just kept it in 2.0 x16. the reason i want to find out how to figure it out is that when it does work in 3.0 im easily getting 40 frames higher than in the 2.0. just wondering if something is wrong with my motherboard or what. When running it in gen 3 I get issues running games such as games only running at around 30 fps, when i play overwatch i will get bad frames but if i ALT-TAB out and back in a few times it runs fine. the other games are just stuck at bad frame limits. the frames will also get better if i restart my computer while in gen 3. I have uninstalled and reinstalled drivers around 5 times to no avail. I have also did a full reinstall of windows.
My specs:
PSU: CORSAIR RM Series RM850 850W ATX12V v2.31 and EPS 2.92 80 PLUS GOLD Certified Full Modular Active PFC Power Supply
CPU: Intel Core i7-4790K Devil's Canyon Quad-Core 4.0 GHz LGA 1150 88W BX80646I74790K Desktop Processor Intel HD Graphics 4600
RAM: Ballistix Sport 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model BLS2KIT8G3D1609DS1S00
HDD: WD Black 1TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD1003FZEX
Motherboad: MSI MSI Gaming Z97-G45 Gaming LGA 1150 Intel Z97 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
My specs:
PSU: CORSAIR RM Series RM850 850W ATX12V v2.31 and EPS 2.92 80 PLUS GOLD Certified Full Modular Active PFC Power Supply
CPU: Intel Core i7-4790K Devil's Canyon Quad-Core 4.0 GHz LGA 1150 88W BX80646I74790K Desktop Processor Intel HD Graphics 4600
RAM: Ballistix Sport 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model BLS2KIT8G3D1609DS1S00
HDD: WD Black 1TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 64MB Cache 3.5 Inch - WD1003FZEX
Motherboad: MSI MSI Gaming Z97-G45 Gaming LGA 1150 Intel Z97 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
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