Question about Dell Dimension 5150 (DIM515MIN) PC Desktop

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Dell 5150c shuts down orange flashing light

My computer shuts off on it's own. No warning, the power light will blink orange and the only way to get it to work again is hold the power button for approximately 7 seconds, allow the computer to shut off, then turn it back on again. There is no telling when it will shut off again.

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  • MARIA743 Mar 09, 2009

    COMPUTER SHUT DOWN AND ORANGE LIGHT IS FLASHING ON POWER BUTTON. I TRIED HOLDING IN POWER BUTTON, NO LUCK, UNPLUGED POWER CORD AND PLUGED BACK IN, NO LUCK, STILL FLASHING.

  • nacho76 Mar 29, 2009

    I have a 5150C (slim case). It works for a while and then it shuts down.Orange light flashes. I am suspecting the cpu is overheating. I have run the virus scan. Nothing was found. I have replaced the thermal compound between the cpu and the heat sink. That has shown an improvement in durration of the operation between shut downs. The problem presists. I have removed the side cover from the computer to improve exposure to cooler air. It seems that the problem went away for a while untill yesterday. Now the computer is shutting after about fouty five minutes of operation. I am hearing some unusual noises from the inside of the computer. At first I thought it might be a hard drive. After more thourough investigation (having my ear in the close proximity of the hard drive) I have determined that I can rule it out as a suspect. I am narrowing my investigation to the two fans that are built into the system. One of them (or both) may be faulty. I will post my findings. 

  • MARIA743 May 11, 2010

    Yes, the power cable is connected properly, no viruses, not under warranty. I ordered a new power supply box. Now, how do I replace the old one with the new one?

  • Jim Scott May 11, 2010

    have you run a virus checker lately ??? could be a virus

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It was a faulty or worn out power supply fan. I just replaced it and the computer has been running for about an hour and a half and still no shut down. The system temperature is stable. It runs quieter now. New fan cost 13.88CAD.

Posted on Apr 06, 2009

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Its a case of bad power supply.If the system is still under warranty,please call Dell Technical support and get it replaced

Posted on Mar 16, 2009

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Hi,
First, Check power cable is connected properly or not.

Second, Right click on My Computer...
Click Properties
Click "Advanced" tab
under "System Failure" see if "automatically restart" is checked. Uncheck it if it is. That usually causes the computer to spontaneously restart.

Third, Scan your whole system for viruses.

Thanks

Posted on Mar 09, 2009

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SOURCE: Dell 5150c shuts down orange flashing light

As a temporary measure, taking the side panel off the dell 5150c stopped it from shutting down, so in my case it was clearly a heat problem, as suggested by previous the poster. The following instructions assume you're comfortable replacing computer hardware components - do at your own risk!

The solution is to buy an 'air duster' and some thermal compound for the CPU heat sink. If your CPU fan doesn't sound healthy (mine didn't), also buy a new one (ca. £20 on ebay: search for G9474 ).

Read the service manual: http://support.dell.com/support/edocs/systems/dim5150C/en/sm/index.htm for details on how to install / remove the fan and heat sink.

Clean out dust from the heat sink with air duster. Remove the fan, and clean or replace (recommended). Also clean the grill in front of the fan. Clean off old thermal compound from the CPU / heat sink and replace with a thin layer of fresh compound. Replace heat sink and side panel and you're done.




Posted on May 12, 2009

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Posted on Jan 02, 2017

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