Question about PCIE Gen Setting

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http://community.thermaltake.com/index.php?/topic/43213-attn-users-with-thermaltake-riser-cables/

Edited by wardog - 20 Aug 2016 at 5:12am

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wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 20 Aug 2016 at 5:12am
	An even better solution, and free, can be found at .... http://community.thermaltake.com/index.php?/topic/43213-attn-users-with-thermaltake-riser-cables/ Edited by wardog - 20 Aug 2016 at 5:12am

Souths1der Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Aug 2016 Location: SW Suburbs of C Status: Offline Points: 19	Post Options Post Reply Quote Souths1der Report Post Thanks(0) Quote Reply Posted: 19 Aug 2016 at 11:53pm
	I'm having an issue with a riser cable. While I know it's an issue with the riser cable, the solution to make it work is changing a setting in the BIOS. I'm curious what the ramifications are in the setting I need to make my video card work. I have Thermaltake P5 case and I bought it because I like the looks of the video card being mounted vertically. To do that you have to use a riser cable. The following issue happens with their supplied riser (a known issue at Thermaltake) and a high quality 3M riser I purchased while troubleshooting. With the riser plugged into PCIE1 and the BIOS setting for that slow set to Auto, Gen3, or Gen2 I get no video from my card. My card only works with the setting at Gen1. This problem exists with both the above cables and two different video cards (R9 390X and GTX 1070). I know that the settings probably have no effect on gaming performance, etc. I've read all those tests. However, I also do some overclocking, and need to get every last clock. So I'm curious what is actually happening to the communication through that slot with the setting at Gen1. Is it no longer communicating at x16 but at x8 or x4? Is it still running at max Gbps? This information is what I can't seem to find anywhere. Thanks in advance for any info you can provide.