Dell 620S Desktop - continually reboots/shuts down

June 30, 2013 at 12:18:25
Specs: Windows Vista
I own a Dell Inspiron 620S desk top computer. I have had problems with it since I bought it direct from Dell in 2011. I had to have two separate warranty repairs performed on it while still under warranty, one being that it would not start up. I'm back to the problem, warranty has expired, Dell has been USELESS in this process (last Dell I'll ever buy - we owned 7 of them in the past). I've gotten it to power on but it shuts down with no prompting and keeps rebooting and shutting down. Any ideas?

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June 30, 2013 at 16:41:51
Test the RAM & the hard drive with appropriate software that loads from a boot CD:

1) RAM Test:

2) HDD Test:

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June 30, 2013 at 17:19:10
Here's the thing...wouldn't I have to keep the machine running to perform these tests? I'm not a rookie but I'm also not a pro. Now the machine doesn't want to turn on. One of the repairs that had been done by Dell included replacing the wiring and power switch. When I turn the unit on, the fan comes on momentarily, then stops, then on, then stops and so on. Oddly, only when I UNPLUG the power wires (inside the box - I have the cover off) the fan will continue to run and, only then will the unit boot up. When you suggest that I use software that loads from a boot CD, are you referring to the software that came with the unit? I have a flash drive type boot utility. Is that the same thing? Thanks for your help!

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June 30, 2013 at 19:30:22
You mention unplugging power wires INSIDE the computer while it is running??? That is very dangerous and you are more than likely doing more damage to the computer. What wires are you unplugging?

You've been helped by a 15 year old.

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June 30, 2013 at 20:15:40
I've done this work before on other computers. The problem seems to be mechanical and related to the power switch. Again, these parts were all replaced by a Dell technician months ago and now the machine is doing the same thing. I can get it to boot up but then it shuts down on its own and keeps rebooting and shutting down. I was advised by a Dell technician over the phone (after I told them I would never buy another Dell) to open the cover and be sure that all connections are solid. He also told me to remove the RAM and plug the two strips back in to be sure that everything had a solid connection. I've replaced RAM before with no problem. I've checked EVERY connection but the processor will still not stay on.

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