9 Replies Latest reply on Dec 24, 2015 1:20 PM by bank_shot

    how to run dual w5100

    bank_shot

      I have a Dell T3600 workstation. Dell set it up with two FirePro V4900's (I don't know why). I have replaced them with two W5100's. I can't get both to turn on and stay on. How can I force two PCIe slots to power up?

      Thx

      Mike

        • Re: how to run dual w5100
          kingfish

          What power supply do you have?

            • Re: how to run dual w5100
              bank_shot

              I'm running a 1300 watt PS. I had a 625 W but upgraded.

              1 of 1 people found this helpful
                • Re: how to run dual w5100
                  kingfish

                  We have some crossfire experts around here backFireX64  t77chevy

                  Are you using bridges?

                    • Re: how to run dual w5100
                      bank_shot

                      I'll give you the whole story so it will make sense to you. I bought the workstation with the intent of going to a crossfire setup. When I ordered it I didn't know V4900's cannot crossfire. Dell recommended the W5100's for an upgrade. I ordered two W5100's thinking I could just replace the crossfired V4900. But, they can't be crossfired either. I'm stuck with two 4Meg cards instead of buying a single 8Meg card. In preparation for the new cards I bought a used 1300W pwr supply.

                      When I first installed the new cards they both worked. Then the next day one card came up, then after boot up shut down and the other card would come on.

                      I went into the Bios and tried some different things but none worked. I read about a PCIe patch that is supposed to force two PCIe slots on. I think that patch will fix the problem.

                      If I had known Dell had done this I would have told them to drop one card and put in a bigger one.

                      To sum it up. I am trying to get two PCIe slots to turn on and drive two video cards. One card for each monitor. Pretty dumb isn't it?

                      Thx for your help

                      Mike

                        • Re: how to run dual w5100
                          t77chevy

                          workstation mobo are a whole different setup then
                          I'm used to ,and for rendering ect you don't want the gpus in cf you want each gpu working on its own instance , for gaming cf comes in handy but not rendering ect .

                           

                           

                          you stated it did work at one time so the mobo should be fine with cf so it comes down to the os used, most workstations run a dedicated version of windows /linux and features are a little different , but any pci power controls ect you will want out of power saving mode which is normally on by default , also windows has a horrible habit of installing drivers ontop of already installed drivers which could also be causing the issue

                          2 of 2 people found this helpful