PC connected but irresponsive

[MojangYang]

Hi, guys. Just so you know, this question is kind of specific.

So I have this multi-purpose server I built out of scrap parts, with

CPU: i3 4160

Ram: 6GB ddr3 (2 mixed sticks of various unknown frequency and brands)

Random Gigabyte mini itx mobo (I think its a GA-H81M-DS2)

Ancient seagate 160GB HDD.

 

The specs does sound completely rubbish, but it worked well for me as a Sheepit render client (Blender community render farm service, basicly the machine runs 24/7, rendering projects for other people)

 

However, this morning, something peculiar happened.

I checked the web control panel of the render farm, and it shows that my machine is connected, and the CPU is running at near 100% like it supposed to be.

But when I went to physically check the machine, I discovered that It's not giving an VGA output. The keyboard did not seem to be able to interact with it either, as pressing caps lock does not light up the caps led. The ethernet activity led is blinking as normal. The funniest thing is that when I eject the dvd drive, the tray rolls back in immediately, then the HDD activity led starts blinking 3 times per second and would never stop.

I eventually had to reboot the device.

How is this happening?

 

In short: Can anyone explain to me how the client running on my machine was connected to the internet while the pc is irresponsive?

[SansVarnic]

-= Topic moved to Troubleshooting =-

[Guest]

Quote

Ram: 6GB ddr3 (2 mixed sticks of various unknown frequency and brands)

I'd start with the investigation here, mix matching memory may not always give positive results.