I just built a new server based on the H370M-ITX/ac motherboard, using an Intel Core i5-8400 Coffee Lake 6-Core 2.8 GHz CPU, SAMSUNG 960 EVO M.2 500GB SSD, and two sticks of Crucial 8GB 288-Pin DDR4 SDRAM DDR4 2400 for memory. Everything seemed to go well. I was able to install Ubuntu Server 18.04 LTS onto the SSD and after everything appeared to be working well, I started downloading the primary program that this machine will be running. After about 15 minutes of transferring about 50 GB of data from a local fileserver to this new machine, this new machine shut down. I can not get it restarted. I ran out of time to troubleshoot this on Monday night (the day I started this) so left it unplugged until today.
I initially thought it was a power supply issue, for a variety of reasons, so I pulled out an ATX PSU tester and it showed that the power supply was putting out all the right voltages on all rails. I then noticed that when "turned on", the power LED on my case was lit. I also noticed that on the LAN port that has an ethernet cable plugged in has a solidly lit orange activity/link LED but no speed LED lit. I do not see any LEDs on the motherboard like I've seen on other motherboards. I then noticed something that I found a bit odd... the CPU heatsink got pretty hot after a few minutes, which I find odd since it never booted up; none of the system fans ever turned on, including the CPU fan. I verified that the CPU fan does work by plugging the power to the CPU fan into another fan controller I had laying around. I had disconnected a keyboard and monitor on Monday evening, after installing the operating system and my plan was to just SSH into the machine, as this is intended to be a headless server. I just reconnected a monitor and keyboard and I get no lights on the keyboard light up. There is no video output to the monitor. I was hoping to see if I could at least get to the BIOS. I was hoping that if by chance, I had somehow burned out the CPU, the BIOS would at least tell me that. I was also hoping it would tell me if there was a problem with the RAM. Other than that, I can't think of what else to check. I have unplugged and replugged in everything. I have a power meter attached to the power supply, showing that when it is "turned on", it is drawing ~1.6 amps or 19.6 Watts. At this point, everything points to the motherboard failing somehow.
|