Intel Motherboards - [H270M-ITX/ac] Cannot POST with PCIE NIC card

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[H270M-ITX/ac] Cannot POST with PCIE NIC card

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=11344
Printed Date: 18 Jul 2025 at 10:35pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: [H270M-ITX/ac] Cannot POST with PCIE NIC card

Posted By: antiloop222
Subject: [H270M-ITX/ac] Cannot POST with PCIE NIC card
Date Posted: 21 Apr 2019 at 12:31am

Hello,

I'm not able to POST when PCI Express NIC card (1 ethernet port Startech card based on Intel 210 chipset) is plugged: no fan, no video, nothing.

What I already did to understand the root cause :

- I already cleared CMOS several times, but still having the problem
- I tried to umount/mount again my motherboard and CPU, but still having the problem
- I tested the PCI Express NIC card on another PC, and it works well
- I tested a PCI Express video card in the PCIE slot, and it works well
- I don't think it is coming from ATX alimentation as I measure 35W of consumption whereas the alimentation can provide 360W and the card is announced to consume less than 1W

I start to ask myself if the motherboard can support PCIE cards that are not graphic cards. Any thoughts on this ?

Also, I saw this : [URL]http://yannickdekoeijer.blogspot.com/2012/04/modding-dell-perc-6-sas-raidcontroller.html[/URL]
But I don't think this is the problem as people don't report impossibility to POST in such a case (but more incorrect memory reported for example)

Any help from you guys strongly appreciated !

Thanks