Hi guys, so here is my predicament. I've helped a friend by speccing out some hardware within their budget. The CPU is an I5, The motherboard is the Gigabyte B360 HD3, The Video card is an RX580 and PSU is 750w 80+ Bronze.
The problem is, the motherboard indicator light indicates a problem with "video" when the RX580 is installed. The monitor displays nothing and the PC won't post with the card installed. I have tried to troubleshoot this multiple ways, including booting in to bios using intel graphics and setting intel graphics to off (so only PCIE graphics are used). This did not work. I've tried the card in my own PC (nvidia) and it works fine. I've even tried an entirely different, known good RX580 in the same system and it experiences the same issue. (i've tried both an MSI RX580 (the one I specced for her) and a Sapphire branded RX580. Both experience the same issue, no video output, no post.
Now this system was built from the ground up all new components. The wierd thing is, it works with my old GTX970 installed. Boots fine. I've been loaning her this card so she is not sitting with an overpriced paperweight, but I'm really stumped as to what could be causing this.
It shouldn't be power delivery for the following reasons: the PSU is more than sufficient. The power cables for the video card (which are integrated, IE: non-modular connector on semi-modular PSU) work with the GTX970 card, which has higher power draw and requires the 6 and 8 pin as opposed to the RX580s just 8 pin requirement.
I've of course tried re-seating the video cards (both of them, multiple times) and ensured the power connectors are properly inserted. Both RX580 video cards non-functional in her system work fine when installed in mine. EDIT: should also mention, BIOS has of course, been updated.
Please help, as I feel bad and responsible as the hardware was purchased at my suggestion.
MB: https://www.amazon.ca/GIGABYTE-B360-HD3-LGA1151-Motherboard/dp/B07BQB1CMX/ref=sr_1_7?crid=1GWY059VWB8LV&keywords=lga+1151+motherboard&qid=1568388979&sprefix=lga1151,aps,234&sr=8-7
Graphics card 1: https://www.amazon.ca/RX-580-ARMOR-...f=sr_1_3?keywords=RX580&qid=1568389537&sr=8-3
Graphics card 2: https://www.amazon.ca/Sapphire-1126...f=sr_1_1?keywords=RX580&qid=1568389537&sr=8-1
I should note, there are no post error codes played through internal speaker. The only thing is the "video" indicator light on the mobo stays solid, however during a typical functioning boot sequence the lights would flash as they test the systems then remain off.
The problem is, the motherboard indicator light indicates a problem with "video" when the RX580 is installed. The monitor displays nothing and the PC won't post with the card installed. I have tried to troubleshoot this multiple ways, including booting in to bios using intel graphics and setting intel graphics to off (so only PCIE graphics are used). This did not work. I've tried the card in my own PC (nvidia) and it works fine. I've even tried an entirely different, known good RX580 in the same system and it experiences the same issue. (i've tried both an MSI RX580 (the one I specced for her) and a Sapphire branded RX580. Both experience the same issue, no video output, no post.
Now this system was built from the ground up all new components. The wierd thing is, it works with my old GTX970 installed. Boots fine. I've been loaning her this card so she is not sitting with an overpriced paperweight, but I'm really stumped as to what could be causing this.
It shouldn't be power delivery for the following reasons: the PSU is more than sufficient. The power cables for the video card (which are integrated, IE: non-modular connector on semi-modular PSU) work with the GTX970 card, which has higher power draw and requires the 6 and 8 pin as opposed to the RX580s just 8 pin requirement.
I've of course tried re-seating the video cards (both of them, multiple times) and ensured the power connectors are properly inserted. Both RX580 video cards non-functional in her system work fine when installed in mine. EDIT: should also mention, BIOS has of course, been updated.
Please help, as I feel bad and responsible as the hardware was purchased at my suggestion.
MB: https://www.amazon.ca/GIGABYTE-B360-HD3-LGA1151-Motherboard/dp/B07BQB1CMX/ref=sr_1_7?crid=1GWY059VWB8LV&keywords=lga+1151+motherboard&qid=1568388979&sprefix=lga1151,aps,234&sr=8-7
Graphics card 1: https://www.amazon.ca/RX-580-ARMOR-...f=sr_1_3?keywords=RX580&qid=1568389537&sr=8-3
Graphics card 2: https://www.amazon.ca/Sapphire-1126...f=sr_1_1?keywords=RX580&qid=1568389537&sr=8-1
I should note, there are no post error codes played through internal speaker. The only thing is the "video" indicator light on the mobo stays solid, however during a typical functioning boot sequence the lights would flash as they test the systems then remain off.
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