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Dell Dimension e521 doesnt turn on

December 25, 2009 at 14:58:25
Specs: Windows 7

The problem is that my dell does not turn on. Whenever i press the power button the everything turns on for a second and then turns right back off. Anybody know whats going on here? i know it is not the power supply because we tested it. And we also got a new one just in case and it still has the problem.. thanks for any help!

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#1
December 25, 2009 at 15:22:58

Well if you've swapped out the PSU for a known good one then the next step is to try in barebones configuration. Disconnect the power & data cables from all drives. Take out all but 1 stick of ram. Take out any pci cards and disconnect any external peripheral devices (Usb, parallel etc)

Leave only motherboard with CPU & heatsink/fan, 1 stick of ram, PS/2 keyboard, monitor. Use onboard graphics if it has it.

Will it boot into BIOS? Any motherboard beeps?

Take out the remaining stick of ram and try booting. Any beeps?

Goin' Fishin' (Some day)


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#2
December 25, 2009 at 15:27:49

it wont even boot up. It turns on for a split second and turns right back off. Even with EVERYTHING unplugged except the CPU it turns on for a split second and turns off.

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#3
December 25, 2009 at 16:51:34

I might be able to help, i might not.
Chances are you have probably tried this already.
Not only that but it looks exactly like what Richard59 said just a few alterations.

I surged my computer a while back, everything screwed up.
I took it apart, replaced everything with other pieces, nothing would work.

Turned out that the reason reinstalling everything didn't work was majorly because i just had knocked one of the ram sticks paritally out whilst re-screwing the computer. It was almost as though the RAM was shorting the computer -- turns out it was. So i put it back in properly, got it working and everything, put its case on -- stopped working.

I had to replace the graphics card, the RAM shorting problem ended up screwing my graphics card to.

So my main reccomendation would be -- Make sure everything is connected properly.

Do exactly what Richard59 reccomended too, remove all the unimportant stuff and try it then, if it works, replug it all one by one.

Its a slow process but it sure beats having to replace a $500 graphics card and a $80 4GiB RAM stick :P

Goodluck, hope this helped.

ArukkNet Homepage -- My.. Under Construction Currant Project.

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Related Solutions

#4
December 25, 2009 at 17:48:39

Still nothing =/.. i think its a short in the mother board =(

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#5
December 25, 2009 at 17:56:30

Well, maybe it is. If you haven't in a while, attempt to clean the board and remove any dust that may have gotten caught up. Im not sure if its possible, but considering mediorite dust it magnetic.. Well yeah. Just be very careful and do not use a vacuum cleaner as you want to prevent as much static charge from entering the board as possible. Compressed air is probably the best solution.

Static, may also be the reason this is occuring. I have seen that many of times.

Once or twice i have even seen boards overheat incredibly fast, check the heat-drawing cream that should be on the processor, attaching it to the heat-sync. If it is non-existant i reccomend either replacing it, or taking it to a technician who you trust, possibly a paid one.

I could list many more things, but right now i don't have the time. If your still on tonight i may be able to provide more of an insight.

Good luck :P

ArukkNet Homepage -- My.. Under Construction Currant Project.

Feel like helping? PM me.


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#6
December 25, 2009 at 19:40:23

well im still on. have recently cleaned it and and have already checked a redone the heat sink stuff... I don't know =/ I unplugged everything to only the power supply was plugged in and still the same problem. I'll restate the problem again just in case. It turns or for literally a second and turns back off. Replaced the PSU, still the same problem. Havent tried anything else... Still dont know what the problem is =(

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#7
December 25, 2009 at 20:41:18

Ok, reinstal cpu, if that failed test the components(cpu,ram all sticks) to another good working system.

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