Z97 OC Formula - Cannot run 3 GPUs
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=2636
Printed Date: 07 Jan 2025 at 7:23pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z97 OC Formula - Cannot run 3 GPUs
Posted By: smith2008
Subject: Z97 OC Formula - Cannot run 3 GPUs
Date Posted: 11 May 2016 at 5:46am
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Hi guys. I will really appreciate if you can help me out with this one. I have the "Z97 OC Formula" board with i5 CPU. I am running perfectly fine 2 x GTX 980 TIs on PCI-1 and PCI-2 slots. But when I plug in a third card ( GTX 970 ) on PCI-4 there is a strange message right after computer start that I need to install PSU's 4-pin connectors. I am using "FSP AURUM PRO 1200W AU-1200PRO" and I have connected 2 x 8 pin power connectors to the board ( one is 2x4 ) and the main 24 pin as well. One more thing. I am not trying to do SLI mode, I just want those cards operational. Thank you! |
Replies:
Posted By: Xaltar
Date Posted: 11 May 2016 at 12:05pm
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There is a 4 pin molex connector at the top left of your board (looking at it with the IO panel at the top). That is designed to provide additional power to the PCIe slots when you have 3 or more GPUs installed. ------------- 
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Posted By: smith2008
Date Posted: 11 May 2016 at 12:18pm
There are two "Hi-Density Power Connectors" on the top left side. And I have connected them both. The only thing I can think of is may be somehow they do not work because of the PSU or the board. |
Posted By: Xaltar
Date Posted: 11 May 2016 at 1:15pm
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With the board in that orientation the molex connector I am referring to is at the bottom left. I put a box around it for you. 
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Posted By: smith2008
Date Posted: 11 May 2016 at 2:25pm
| Ah! It is behind the PSU, that's why I haven't seen it. Brilliant, thank you for your help. |
Posted By: Xaltar
Date Posted: 11 May 2016 at 2:38pm
No problem at all, let us know if it resolves the issue  -------------
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Posted By: smith2008
Date Posted: 13 May 2016 at 3:57am
Yes, it did. All three GPU are working flawlessly now. Thank you! 
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Posted By: Xaltar
Date Posted: 13 May 2016 at 11:49am
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Glad to be of help -------------
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