Gen 3 PCIe GPU on a B650E Tachi Lite |
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atiracer@yahoo.com
Newbie Joined: 16 Sep 2024 Status: Offline Points: 50 |
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Posted: 16 Sep 2024 at 4:59am |
Hello, everyone.
I'm building my second B650E Tachi Lite but I am unable to post with a RTX 2080 Gen 3 PCie card GPU installed in PCIe 1. The system does post into the BIOS off the CPU graphics but not with the 2080. Is there a compatible issue with running a Gen 3 GPU in a Gen 5 slot? As far as I know, there shouldn't be unless there is a setting in BIOS that needs to be set. Some configuration info. -2080 works and just came out of another system. All contacts are undamaged. -PCIe slot looks clean with no visible damage (The 2080 was fully seated). -BIOS is still 3.02 (out of the box) and set to default settings. -Installed M.2 is in the 2nd M.2 slot (Gen 4 drive). -1st and 3rd M.2 slots are empty. -I have not tried PCIe slot two yet. -1000w PSU. -7800x3D CPU. -System tries to post but then restarts at either code 70 or F3 It doesn't stop at the code, just loops back to trying to start again. I had no issues with the other system which is virtually the same as this one except it has a RTX 4080 in it. That system is connected to my sim racing rig and would be too much of a pain to pull the 4080 and try it. Hoping this is something simple and not a compatibility issue or even a bad PCIe slot. Was planning on using the 2080 for now and upgrading the GPU later when needed. Any help or suggestions are appreciated. Thank you. |
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atiracer@yahoo.com
Newbie Joined: 16 Sep 2024 Status: Offline Points: 50 |
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More info to ponder. I tried the 2080 with an HDMI cable and it will POST into the BIOS. Plug in a DP cable and issue returns. I tried four different DP cables and all three DP ports on the card and it's the same issue. I even unplugged the DP cable from the monitor but left it in the GPU port and the issue occurred. I also tried the 2080 in the 2nd PCIe slot and it's the same as the 1st slot, only works with HDMI.
I have never seen an issue like this before and at a loss. |
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NDRE28
Newbie Joined: 08 Sep 2024 Location: Romania Status: Offline Points: 195 |
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Hello!
Please try these: Enter into the BIOS Advanced Menu (F6). 1. Set Display Priority: ?˘Advanced ?˘Onboard Devices Configuration ?˘Display Priority: External Graphic 2. Set the correct PCIe Gen: ?˘Advanced ?˘AMB PBS ?˘AMD Common Platform Module ?˘PCIe x16 Link Speed: Gen3 3. F10 (Save) NOTE: I am on an X670E Taichi, so the exact location of those settings might be a bit different on your motherboard! NOTE: Also, please make sure that you are on the latest BIOS version of your motherboard model! |
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atiracer@yahoo.com
Newbie Joined: 16 Sep 2024 Status: Offline Points: 50 |
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Thank bud. I did update the BIOS after noticing the the boot priority menu was missing completely. That has at least fixed the BIOS POST looping with only a DP cable plugged in. I got Windows installed but have been away all weekend. Will play with it more now that I am back home.
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NDRE28
Newbie Joined: 08 Sep 2024 Location: Romania Status: Offline Points: 195 |
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OK. |
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