Howdy Folks!
I have an issue I've been trying to take care of since I built this PC a little over a month ago. .
Specs as follows
ASRock Z390 Phantom Gaming 4S/AC
i5 8600k
2x8gb 3600 DDR4
Win 10 Home
RX 570
The reason I built a *new* PC using an 8th Gen Intel processor is because I got the processor for free! and that ASRock motherboard was the only thing I could really find without spending an arm and a leg for old hardware.
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The Original Issue:
Onboard LAN with this lovely ASRock Z390 motherboard does not work.
What Happens:
The network port on the motherboard intermittently flashes. Orange & Green indicator lights on the port just flash for ~second at steady minute or so interval.
What I've done:
The classic reboot and pray - Did not fix.
Disabled onboard Intel 1219-V ethernet thru the BIOS settings. Boot to windows, shut down, reenabled it in the BIOS- Did not fix.
Disabled onboard WIFI to see if it was preferring wireless over wired? Did not fix.
Swapped CAT Cables - did not fix.
went from Network switch, straight to the Modem (or whatever Shaw's modem/router thing is called). - did not fix
Took the m.2 wifi card out completely (this some how broke it?) - did not fix.
My first thought was - "huh, that's weird, I wonder if it's shorting? - I took the I/O shield off completely thinking that would be the issue. (As this has been in the past for me)
It was not.
Alright - time to update the BIOS! the mobo originally had bios v1.00. Searching for a bios update lead me to find out that this lovely piece of equipment stays true to its name - it's a friggin' Phantom! Can't find jack on this thing. ASRock's website - doesn't have the 4S/AC on its website at all. I ended up finding it through Ibuypower's website thanks to reddit.
The BIOS update did not fix the issue.
I cannot use ASRocks Z390 Phantom Gaming 4 or 4S drivers it has to be 4S/AC
Through Device Manager I hardware ID'd to get the appropriate drivers.
Installed Intel 1219-V most recent network driver. Still getting the same intermittent light flash.
I'm running out of ideas at this point.
I tried my USB Network Adaptor that I use for my switch. Praying that this would be my saviour. It does the exact same thing that the motheboard does??? huh??!
Intel's PROSet Adapter Config Utiilty - doesn't detect the onboard LAN. However - it does for that split second where it see's that connected @ 100MBPS, full duplex... Then mysteriously disappears. related to the indicator lights.
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I've probably forgot to mention some things - this has been over the course of 6 weeks and I'm at my wits end.
Has anyone experienced something like this?
I thought it was a bad port on the motherboard, but the fact the USB adaptor does the exact same thing makes me think otherwise.
I just hope there is something stupid simple I missed because this is driving me bonkers.