Help - I am trying to get a Dell Optiplex 780 from shutting down at random. Details copied from the system specs: srv tag<ADMIN NOTE: Service tag removed per privacy policy>, small form factor, vPro system, HARD DRIVE, 250GB, S2, 7.2K, WESTERN DIGITAL, XL320; processor PROCESSOR, Q9400, 2.66, 6MB, YOR, R0; graphics card: 256MB ATI RADEON HD 3450 Graph ics Dual DVI and TV Out, Low Profile, for the OptiPlex 780 Small Form Factor and Desktop.) I bought it cheap out of warranty from work for my kids. At first it would power on, but stall in early stages (Bios or post? it would not boot to windows or communicate with the monitor). It gave a series of three beeps, and the green 3 and 4 LED lights. Every website and person I spoke with said this was memory, likely RAM. So we upgraded the two RAM cards from 2 2GB cards, to 2 new 4GB cards (got these from Memory America and details here: 8GB Kit (2x 4GB) DDR3 1333MHz PC3-10600 Non-ECC Unbuffered 240-pin Memory.
There was also some advice on various chat sites about shut down caused by possible power problems with plug strips and with intensive video use. So I plugged it straight to the wall with no strip, and removed one of the two monitors it was originally set up with. We installed windows 10 OS and a netgear wifi card, and, it worked! (for a day or so...) While it was working, I also updated the Bios to version 15 which was recommended, and I ran the Dell Diagnostic Assist (quick test 10 minutes) website on it - all the systems (drives and pattern tests) passed. That night, I left it on in sleep mode and it woke up fine the next AM. So I thought I had saved the republic.
But even with the new steps, the computer still shuts off at random. I just booted it up again, it booted to windows fine, I logged on, opened Chrome and started to look into the system details for this post, and it shut down and gave me the dreaded three beep, three beeps, maybe one beep, three beeps....etc. Now it shows the green 3 and 4 lights again.
We need some stability in this droid...
Help us Obi Wan...