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Adding a 3rd card to H510 Pro

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TheBrow View Drop Down
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Joined: 16 Dec 2021
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    Posted: 29 Dec 2021 at 11:19pm
Hello,

I cannot get more than 2 cards working. I have 2 PSU installed using the onboard connections. Each card is connected to PSU via the cards own power connections.

Motherboard - ASRock H510 Pro
BIOS - 1.40
CPU - Intel i3-10100F
RAM - 8GB Corsair DDR4
PSU x 2 - CORSAIR RM750MX
OS - WINDOWS 10 PRO

WORKING CARD 1 - Radeon 3060ti LHR
WORKING CARD 2 - AMD Radeon RX 5700 XT

NOT WORKING CARD 1 - Radeon RX5700 MECH GP OC
NOT WORKING CARD 2 - Radeon RX5700 MECH GP OC

RX5700 cards are from mates rig and work in that

When I power on the first two slots show as GREEN on the POST screen and anything in slots 3-6 show as ORANGE (definitely not red)

Device manager doesn't show anything other than than the green POST cards

Thanks in advance
Bred

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ASRock_TSD View Drop Down
ASRock_Official
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ASRock_TSD Quote  Post ReplyReply Direct Link To This Post Posted: 30 Dec 2021 at 2:12pm
Hi TheBrow,

Thank you for your post.

Please make sure all the cable has been connected. (including Molex connector)

If the Molex connector didn't be connected, the GPU may not able to get enough power and be detected by the system.

Below link is our recommendation to connect the cable.
https://www.asrock.com/support/faq.asp?id=503

All the best
ASRock TSD
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