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08-07-2005, 05:40 PM
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#1 |
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Member (4 bit)
Join Date: Feb 2005
Posts: 12
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PC will not boot (sometimes)
I have an intermittent problem and am hoping to get some guidance from you all.
My PC does not always start. Here's what happens: - hit power button on cold PC - PC fans come on (including CPU). - PC on (red) light comes on, orange (HD access) light comes on - PC shuts down, red light stays on. - hold switch for a few seconds to turn off the red light. - try again (usually the same result. I tried disconnecting all devices including power to the HD. This sometimes changes the state and allows the PC to enter POST. However, I can't isolate to a single device. Once the PC starts working again, it will often continue to boot, even with all devices connected. I checked the voltages on the 20 pin PS connector, and all seem OK. I tried to test the POwer_OK line, but the PC started working when I ran that test. Once the PC is up and running it appears to work normally. Any ideas? Thanks. |
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08-08-2005, 02:07 AM
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#2 |
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Supergeek in training
Join Date: Apr 2004
Location: UK
Posts: 1,690
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__________________
Pure geek and proud. "Success is not final and failure is not fatal. It is the courage to continue that counts." - Winston Churchill ------------------------------------------------------------------------------------------------- |
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08-08-2005, 05:50 AM
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#3 |
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Member (10 bit)
Join Date: Jul 2005
Location: Montreal, Canada
Posts: 713
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try running a mememory test on the ram to make sure its good and error free. double check all connections from the power supply to the mobo. Also what is the hardware you have? List that so we can help you. What is the power supply you are using? A cheap supply is not the best way to go.
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08-08-2005, 12:04 PM
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#4 |
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Shiro Usagi
Premium Member
Join Date: Sep 1999
Location: Kaneohe, Hawaii
Posts: 34,002
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What are the specs for this computer?
Is it home built or store bought? What brand is the power supply? If you can get the computer going and it's been running awhile, can you shut down and then restart without problems?  Cricket
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08-08-2005, 03:22 PM
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#5 |
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Member (4 bit)
Join Date: Feb 2005
Posts: 12
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My system is:
AMD 2800+ Barton Gigabyte 7N400-L 2 x 512 Geil PC3200 Turbolink 420W PS WD 80GB 7200 HD (JB version) WD 160 GB 7200 HD (JB version) inexpensive AGP analog video card inexpensive DVD/RW Same thing happened this morning. PC would not start. I disconnected the extra HD, same result. Then I removed both memory sticks, and reinstalled one in a different slot -- bingo! It started. Then I installed the other stick and it didn't start. Then I tried again, and it started! I'm running memtest86 now. edit: Once the computer is warmed up it appears to restart much more reliably. The problem (that it doesn't start) typically happens 1st thing in the morning. Once I get it running, it usually runs OK for the day. I haven't experienced any crashes or shutdowns once its up and running. edit: memtest passed with no errors. Thanks. Last edited by bruder; 08-08-2005 at 05:58 PM. |
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08-09-2005, 12:39 AM
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#6 |
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Shiro Usagi
Premium Member
Join Date: Sep 1999
Location: Kaneohe, Hawaii
Posts: 34,002
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TurboLink power supplies are cheap, low quality units and replacing it with a good quality power supply will most likely solve your problem.
See the power supply thread for a list of good quality power supplies. Cricket
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08-15-2005, 11:56 PM
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#7 |
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Member (4 bit)
Join Date: Feb 2005
Posts: 12
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I replaced the Power Supply with a 430W Cooler Master Extreme.
http://www.svc.com/rs-430-pmsr-19.html All appears to be working well now. It took me awhile to find a company with a decent price who would ship USPS Priority Mail to Hawaii (anything else is rediculous). Thanks for your help. |
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