- Dec 28, 2013
- 1
- 0
- 10,510
Hi everyone, hopefully someone could share some insight on this problem I'm having. Relevant specs:
MOBO: Gigabyte Z87X-D3H
PSU: Antec HCG 850watts
OS: Win 8.1
I recently built this system with one ASUS Radeon 290 (to be used for gaming and litecoin mining). I've been mining for about two weeks with guiminer and its been working well. Today, I bought a Gigabyte Radeon 290 and installed it as my second GPU (directly on MOBO, no risers). Windows device manager recognizes that there are two Radeon 290s. However, whenever I installed the AMD drivers and reboot, Windows crashes while booting. The only way I can get her to boot to desktop is to enter safe mode, uninstall the drivers and reboot. (Actually I once uninstalled the driver only on the second graphics card and rebooted and she worked). I tried booting in linux (Mint) but she kept crashing in X as well.
When I do get into Windows (after uninstalling drivers - Windows auto reinstalls when I log in), I can run guiminer. It only shows the first card and not the second card. The first card still runs at my expected hash rates which makes me thing the problem is with card #2.
From the PSU, I have a 2x 8 pront cables (on the PSU side), one plugged into "12V1" and one plugged into "12V2". On the GPU side, each cable splits into 6(+2), 6(+2). I have the 6 and (6+2) for each cable plugged into each GPU. I'm a bit new to this, so maybe I don't have this done right?
This is my first time running 2xGPUs. I haven't installed any cables between the GPUs (not sure if I'm suppose to?) Maybe I'm missing something very obvious (ie hardware not installed properly, something in BIOS?). Let me know if you need more info! I've been at this for a few hours now so any insight would be helpful.
MOBO: Gigabyte Z87X-D3H
PSU: Antec HCG 850watts
OS: Win 8.1
I recently built this system with one ASUS Radeon 290 (to be used for gaming and litecoin mining). I've been mining for about two weeks with guiminer and its been working well. Today, I bought a Gigabyte Radeon 290 and installed it as my second GPU (directly on MOBO, no risers). Windows device manager recognizes that there are two Radeon 290s. However, whenever I installed the AMD drivers and reboot, Windows crashes while booting. The only way I can get her to boot to desktop is to enter safe mode, uninstall the drivers and reboot. (Actually I once uninstalled the driver only on the second graphics card and rebooted and she worked). I tried booting in linux (Mint) but she kept crashing in X as well.
When I do get into Windows (after uninstalling drivers - Windows auto reinstalls when I log in), I can run guiminer. It only shows the first card and not the second card. The first card still runs at my expected hash rates which makes me thing the problem is with card #2.
From the PSU, I have a 2x 8 pront cables (on the PSU side), one plugged into "12V1" and one plugged into "12V2". On the GPU side, each cable splits into 6(+2), 6(+2). I have the 6 and (6+2) for each cable plugged into each GPU. I'm a bit new to this, so maybe I don't have this done right?
This is my first time running 2xGPUs. I haven't installed any cables between the GPUs (not sure if I'm suppose to?) Maybe I'm missing something very obvious (ie hardware not installed properly, something in BIOS?). Let me know if you need more info! I've been at this for a few hours now so any insight would be helpful.
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