Been having a problem with a mini-tower that acts as a shared drive for a small 3-user network. The PC is a PowerSpecB332 with the usual build (Win7 64, dual core Pentium G3220s@3GHz, 1TB HDD, 4MB RAM). Serves as a data server only. Not a heavy used system. HDD partitioned into System, C:\ (with the OS and minimal programs), and a Simple Volume Shared drive for data only. Pulled an unused PowerSpecB332 out of storage (stored for 18 months since purchase) to put into service this month. Today, the video got all wonky with horizontal stripes buzzing all over the screen and the PC starts shutting down, then tries to start, shuts down, start attempt, etc. etc. Then after several attempts, shuts down for good. I pulled the panel and started checking:
1) pulled all connections to motherboard (RAM, HDD, Video, Data, USB, etc.) and powered up. No shut down after 5-10 minutes.
2) shut down and put the RAM stick back in, powered up and same result as 1
3) shut down, reconnect video, power up, same as #1
4) power down, reconnected HDD, power up, same as #1
5) power down, reconnect optical drive, power up, same as #1
6) power down, reconnect USBs (mouse & keyboard), power up, same as #1
7) power down, reconnect Ethernet, power up, same as #1
Let it run for an hour or so with no issues, then came back to find it shut down again. This was about 2230hrs (ish) today (9/15). Just restarted again and checked the event viewer for the System log. I've attached a copy. There's the usual media player errors that I generally ignore, but the errors around 1825hrs for 9/15 are interesting. I'm not sure if my CPU is crapping out, the motherboard is going, RAM, or the onboard video GPU is shot. If it's the onboard GPU, will installing a graphics card solve the problem?
The only new part of this system is a 16 port GB switch (Netgear) that was added this afternoon. It's unmanaged, so not sure what that would be doing. Also changed the power settings to keep the machine up 24/7 in case it's something to do with hibernation.
Any thoughts are VERY appreciated.