AMD Motherboards - Fatal1ty X399 HELP!

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Fatal1ty X399 HELP!

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=6985
Printed Date: 19 Jul 2025 at 4:16am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Fatal1ty X399 HELP!

Posted By: Nyxecorp
Subject: Fatal1ty X399 HELP!
Date Posted: 18 Dec 2017 at 7:10pm

" rel="nofollow -
I can?�t get more the one 1070 to detect. It will detect 3 cards at the same time 1080 ti, 1070 and Vega 64 at the same time. But I need six 1070 to been picked up.

Whenever I full occupy the pci-e slots it will do one of 2 things. No post or or hard hang when windows is loading.

I?�m using 2.0 bios. And the PBS settings is the closest settings I can find.

Intel boards use 4g decoding enabling to detect gpus.

I wish could use a raid controller for continued expansion of gpus.

I purchased a 7-port usb 3.0 powered hub to pick up the riser cards but same failure as noted above.

How many GPU?�s can the 1950x support?

Replies:

Posted By: antorsae
Date Posted: 18 Dec 2017 at 9:34pm

" rel="nofollow - Did you connect the extra PCIe power connector to the MB?

The manual says it's recommended when connecting 3+ GPUs.

Posted By: MisterJ
Date Posted: 19 Dec 2017 at 12:36am

Nyxecorp, I suggest you open a ticket with ASRock. This is a user forum. I, personally, know nothing about Intel so have no clue what 4g decoding is. I also have no guess what you mean by "...PBS settings is the closest settings I can find...". Please post your specifications in your signature as I have. Enjoy, John.

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Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD