Z490 Extreme X16 slot issue
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=17985
Printed Date: 30 Jul 2025 at 1:35am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z490 Extreme X16 slot issue
Posted By: larry154
Subject: Z490 Extreme X16 slot issue
Date Posted: 02 Feb 2021 at 3:00am
Hello,
I got an issue with Z490 Extreme 4 motherboard.
Motherboard does not recognize GPU on PCI-E 1 (x16) slot, but when I change GPU to slot PCI-E 3 (x4) card is working without any issues.
I tried:
1. Reset CMOS
2. Change BIOS settings (default card from PCIE to Onboard, turn off computer, install PCIE card, turn on)
3. Removing M2 NVMe disc
4. Tried to change some other settings in BIOS, but nothing works.
I checked it on Gigabyte Geforce 960 GTX and Gigabyte Geforce 2060 RTX. On both cards there is same issue.
I know that there isn't much difference but still I would want to use x16 instead of x4.
Specification:
Z490 Extreme 4
Intel I7-10700K
ADATA XPG SX8200 Pro 1TB SSD
MODECOM Volcano 750W Gold
Corsair 16GB (2x8GB) 3200MHz CL16 Vengeance (as default 2166MHz for now)
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Replies:
Posted By: larry154
Date Posted: 02 Feb 2021 at 3:24am
I do not know how to edit post here so I am writing new.
in addition, it is not power supply issue. Fans are working both on x16 and x4 slots.
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Posted By: ASRock_TSD
Date Posted: 02 Feb 2021 at 12:17pm
Dear Larry154,
Thanks for posting.
For this case, kindly check the CPU socket pins.
If possible, try a dust blower to blow the PCIe slot.
If the problem persists, kindly contact the distributor for further assistance.
With thanks,
ASRock TSD
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Posted By: isquiiz
Date Posted: 02 Feb 2021 at 5:20pm
Hello,
Im having the same issues as you, what did you to make it work ?
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Posted By: larry154
Date Posted: 02 Feb 2021 at 11:35pm
Hello,
Checked both processor and cleaned slot. Nothing is helping unfortunately.
Maybe it is connected with M2 slot occupied? M2_2 is taken with NVMe disc.
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Posted By: larry154
Date Posted: 03 Feb 2021 at 4:29pm
Resolved... I'm stupid. Two options:
1. PSU power cabel for CPU was not enough press in PSU (modular PSU)
2. GPU was not enough press down - When first time I put card into PCIE, there was "click" there, all looks like card is inside - and I was afraid to press more due to motherboard. I hold motherboard from behind, and press more (it did not looks like something happen, but maybe it was just few milimeters)
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