Question I have installed a GRID K340 on 1028GR-TRT. I found the GPUDirect P2P (Peer-to-Peer) test failed. Is there a fix for this problem? Answer For the failure by running GPUDirect P2P, pls confirm "ACS Support" has been disabled under BIOS. Then, re-run the test, should be able to pass. Path: Advanced -> Chipset Configuration -> North Bridge -> IIO Configuration -> Intel VT for Directed I/O (VT-d) -> ACS Control -> Enable / Disable. Was this FAQ helpful? YES      NO Enter Comments Below: Note: Your comments/feedback should be limited to this FAQ only. For technical support, please send an email to support@supermicro.com.  Enter your email address below if you'd like technical support staff to reply:  Please type the Captcha (no space) T E P Y FAQ Stats FAQ ID Related Category / Keyword Date Posted Code 22226 BIOS: - BIOS Setting 01/06/16     Print Answer