Braswell J3710m won`t boot with 3 discrete GPU`s
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=3825
Printed Date: 09 Nov 2025 at 7:15am
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Topic: Braswell J3710m won`t boot with 3 discrete GPU`s
Posted By: Braswellminer
Subject: Braswell J3710m won`t boot with 3 discrete GPU`s
Date Posted: 18 Nov 2016 at 6:38am
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" rel="nofollow - I am trying to use a low power J3710m motherboard for altcoin mining . To connect 3 discrete GPU`s, i used 3 Pcie x1 riser adapters. Only 2 GPU configurations work. With 3 connected the bois popps up after 30 seconds. Is there a 2 GPU limitation ? The GPU`s that i want to connect are 2 GTX 1060 and 1 Rx470 Thanks
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Replies:
Posted By: parsec
Date Posted: 18 Nov 2016 at 9:25am
Are you using powered PCIe riser adapters? If not, you are probably running out of power from the PCIe slots for the video cards. Even though they have their own power cables, they still use power from the mother board. The 24 pin ATX connector has only two +12V pins, that must provide power for the entire board, and CPU. Quality mother boards with three or more PCIe x16 slots will have an extra power connection to provide extra +12V power to the PCIe slots. Also, how much memory do you have? Multiple video cards use memory set aside for their basic usage, but only so much of that memory is available. The UEFI/BIOS of some boards have an option to increase that memory amount, but I don't see that option in your board's manual. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Braswellminer wrote:Posted By: Braswellminer
Date Posted: 19 Nov 2016 at 2:23am
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The PCIe riser adapters are all powered +12 and +3V3 . Only data connections are going to the GPU . My system memory is 8 Gb. The time it takes to enter the bios is also long. So i think it is trying to detect / initialise and fails due to some reason. The only option i have is to change the memory for the internal gpu, which did not help :D. |